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<channel>
    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
    </build-info>


<item>
            <title>[SERVER-56237] Degraded performance on ARM AWS Graviton2 instances compared with x86_64 architecture</title>
                <link>https://jira.mongodb.org/browse/SERVER-56237</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We migrated our mongodb server from AWS r5d.16xlarge to r6gd.16xlarge (Intel Xeon Platinum 8000&#160; -&amp;gt; AWS Graviton 2) and faced with significant performance degradation.&lt;/p&gt;

&lt;p&gt;Performance degrades in case of many parallel queries of any nature (we noticed degradation on aggregation/distinct/filter queries, so, don&apos;t assume that issue is related to kind of query)&lt;/p&gt;

&lt;p&gt;On the screenshot below red metrics for two same databases in the one ReplicaSet, the green one is ARM(r6gd.16xlarge), the yellow one is x86_64(r5d.16xlarge), the vertical red bar is the point to a time when we switched primaries (from ARM to x86_64). Our clients reading only from primaries. How you can see, under the same kind of load produce 100% load on the ARM server but ~10% load on the x86_64 server. Load is constant within a day.&lt;/p&gt;

&lt;p&gt;&lt;img src=&quot;https://jira.mongodb.org/images/icons/attach/noimage.png&quot; imagetext=&quot;image-2021-04-21-19-23-30-810.png|width=281,height=340&quot; align=&quot;absmiddle&quot; border=&quot;0&quot; height=&quot;340&quot; width=&quot;281&quot; /&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="1685857">SERVER-56237</key>
            <summary>Degraded performance on ARM AWS Graviton2 instances compared with x86_64 architecture</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="9">Done</resolution>
                                        <assignee username="dmitry.agranat@mongodb.com">Dmitry Agranat</assignee>
                                    <reporter username="ivan.takarlikov@sensortower.com">Ivan Takarlikov</reporter>
                        <labels>
                            <label>Bug</label>
                    </labels>
                <created>Wed, 21 Apr 2021 16:41:39 +0000</created>
                <updated>Sun, 8 Aug 2021 15:26:52 +0000</updated>
                            <resolved>Sun, 8 Aug 2021 15:26:52 +0000</resolved>
                                    <version>4.4.5</version>
                                                                        <votes>2</votes>
                                    <watches>12</watches>
                                                                                                                <comments>
                            <comment id="3969769" author="dmitry.agranat" created="Thu, 29 Jul 2021 06:22:40 +0000"  >&lt;p&gt;Thanks &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ivan.takarlikov%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;ivan.takarlikov@sensortower.com&quot;&gt;ivan.takarlikov@sensortower.com&lt;/a&gt; for uploading the &lt;tt&gt;diagnostic.data&lt;/tt&gt;. Though it is from a different replica set than what we have originally investigated back in April, I do not see any symptoms of the issue that we&apos;ve investigated so far. Overall, the performance seems normal w/o saturating any resources, specifically CPU.&lt;/p&gt;

&lt;p&gt;We are pleased to see that the new release seems to be a big improvement for you, please let us know if you need anything else.&lt;/p&gt;

&lt;p&gt;Regards,&lt;br/&gt;
Dima&lt;/p&gt;</comment>
                            <comment id="3966416" author="dmitry.agranat" created="Tue, 27 Jul 2021 19:58:26 +0000"  >&lt;p&gt;Thanks &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ivan.takarlikov%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;ivan.takarlikov@sensortower.com&quot;&gt;ivan.takarlikov@sensortower.com&lt;/a&gt;, I can see the uploaded file &lt;tt&gt;diag.data.tar.gz&lt;/tt&gt;&lt;/p&gt;</comment>
                            <comment id="3966343" author="JIRAUSER1259576" created="Tue, 27 Jul 2021 19:31:57 +0000"  >&lt;p&gt;Yeah, that works, file sent, could you please confirm that you get it?&#160;&lt;/p&gt;</comment>
                            <comment id="3966298" author="dmitry.agranat" created="Tue, 27 Jul 2021 19:17:03 +0000"  >&lt;p&gt;Appologies &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ivan.takarlikov%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;ivan.takarlikov@sensortower.com&quot;&gt;ivan.takarlikov@sensortower.com&lt;/a&gt;, can you try &lt;a href=&quot;https://amphora.corp.mongodb.com/public/upload/eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJmb2xkZXJfaWQiOiIxNDE2MDI5MTUwMTMiLCJleHAiOjE2MzAwMDUyMTh9.u0sa3pnzOVWarb5pKtXNzhkQgjy0QORliWjyIOaUBWM&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this link&lt;/a&gt;?&lt;/p&gt;</comment>
                            <comment id="3966270" author="JIRAUSER1259576" created="Tue, 27 Jul 2021 19:04:22 +0000"  >&lt;p&gt;Are you sure that &lt;a href=&quot;https://amphora.corp.mongodb.com/portals/portal/server-56237/upload-link&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;it is&lt;/a&gt; the correct link? It requires me to auth on corp.mongodb.org with user/pass, but I logged in before to Jira with Google SAML, so looks like there is no user/pass for me.&#160;&lt;/p&gt;</comment>
                            <comment id="3966130" author="dmitry.agranat" created="Tue, 27 Jul 2021 18:14:23 +0000"  >&lt;p&gt;Yes &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ivan.takarlikov%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;ivan.takarlikov@sensortower.com&quot;&gt;ivan.takarlikov@sensortower.com&lt;/a&gt;, that would be great.&lt;/p&gt;</comment>
                            <comment id="3966097" author="JIRAUSER1259576" created="Tue, 27 Jul 2021 18:02:55 +0000"  >&lt;p&gt;Hey! @Dmitry Agranat yeah, we upgraded much of our primaries and secondaries. Do you need diagnostic.data from one of primaries that were upgraded?&#160;&lt;/p&gt;</comment>
                            <comment id="3966028" author="dmitry.agranat" created="Tue, 27 Jul 2021 17:44:41 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ivan.takarlikov%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;ivan.takarlikov@sensortower.com&quot;&gt;ivan.takarlikov@sensortower.com&lt;/a&gt;, did you have a chance to upgrade the rest of the members and let it run for a couple of days?&lt;/p&gt;</comment>
                            <comment id="3952743" author="JIRAUSER1259576" created="Tue, 20 Jul 2021 15:52:37 +0000"  >&lt;p&gt;@Dmitry Agranat, yeah, sure!&lt;/p&gt;</comment>
                            <comment id="3952147" author="dmitry.agranat" created="Tue, 20 Jul 2021 14:21:41 +0000"  >&lt;p&gt;Thanks for the update &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ivan.takarlikov%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;ivan.takarlikov@sensortower.com&quot;&gt;ivan.takarlikov@sensortower.com&lt;/a&gt;. Once all the members of the replSet are upgraded, could you give it a couple of days and then upload the &lt;tt&gt;diagnostic.data&lt;/tt&gt; into &lt;a href=&quot;https://amphora.corp.mongodb.com/portals/portal/server-56237/upload-link&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this secure portal&lt;/a&gt;? We could use this data to compare to the previously collected information to quantify the change.&lt;/p&gt;</comment>
                            <comment id="3952053" author="JIRAUSER1259576" created="Tue, 20 Jul 2021 13:56:04 +0000"  >&lt;p&gt;Hey, @Dmitry Agranat, yeah, we upgraded it on one of our primaries at 7/17, spikes of load significantly decreased as you can see on screenshot,&lt;/p&gt;

&lt;p&gt;aiming to upgrade it on the rest of our ARM primaries/secondaries on that week&lt;/p&gt;

&lt;p&gt;&lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;a id=&quot;326006_thumb&quot; href=&quot;https://jira.mongodb.org/secure/attachment/326006/326006_image-2021-07-20-16-55-27-165.png&quot; title=&quot;image-2021-07-20-16-55-27-165.png&quot; file-preview-type=&quot;image&quot; file-preview-id=&quot;326006&quot; file-preview-title=&quot;image-2021-07-20-16-55-27-165.png&quot;&gt;&lt;img src=&quot;https://jira.mongodb.org/secure/thumbnail/326006/_thumb_326006.png&quot; style=&quot;border: 0px solid black&quot; role=&quot;presentation&quot;/&gt;&lt;/a&gt;&lt;/span&gt;&lt;/p&gt;
</comment>
                            <comment id="3952011" author="dmitry.agranat" created="Tue, 20 Jul 2021 13:45:38 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=oliver%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;oliver@sensortower.com&quot;&gt;oliver@sensortower.com&lt;/a&gt;, did you have a chance to test with 4.4.7?&lt;/p&gt;</comment>
                            <comment id="3947757" author="dan@10gen.com" created="Fri, 16 Jul 2021 19:39:46 +0000"  >&lt;p&gt;4.4.7 is now GA:&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://www.mongodb.com/community/forums/t/mongodb-4-4-7-is-released/115467&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://www.mongodb.com/community/forums/t/mongodb-4-4-7-is-released/115467&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3945967" author="dmitry.agranat" created="Fri, 16 Jul 2021 09:25:56 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=oliver%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;oliver@sensortower.com&quot;&gt;oliver@sensortower.com&lt;/a&gt;, 4.4.7 is currently in code review, I will send an additional update at the beginning of next week.&lt;/p&gt;</comment>
                            <comment id="3942990" author="dmitry.agranat" created="Thu, 15 Jul 2021 09:17:20 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=oliver%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;oliver@sensortower.com&quot;&gt;oliver@sensortower.com&lt;/a&gt;, I will check and get back to you with 4.4.7 release information.&lt;/p&gt;</comment>
                            <comment id="3930864" author="oliver@sensortower.com" created="Tue, 13 Jul 2021 15:54:20 +0000"  >&lt;p&gt;Hey&#160;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=dmitry.agranat&quot; class=&quot;user-hover&quot; rel=&quot;dmitry.agranat&quot;&gt;dmitry.agranat&lt;/a&gt;&#160;, Any idea when 4.4.7 will be released? The release candidate has been dormant for 3 weeks now.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;Thanks&lt;/p&gt;

&lt;p&gt;Oliver&lt;/p&gt;</comment>
                            <comment id="3898669" author="JIRAUSER1259576" created="Thu, 24 Jun 2021 19:59:30 +0000"  >&lt;p&gt;Hey, @Dmitry Agranat, thanks for letting us know! &lt;br/&gt;
As I understand there is only one way to test 4.4.7-rc0 version - is to replace binaries from a tgz archive from Mongo Download Center. I did it on our testing servers and it run well. But there is no significant load to actually check the fix. So, let&apos;s wait till 4.4.7 would be in the yum repo to test safely it on actual production load because I think that replacing binaries is not the best way to upgrade mongo version on production databases &lt;img class=&quot;emoticon&quot; src=&quot;https://jira.mongodb.org/images/icons/emoticons/wink.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;.&lt;/p&gt;</comment>
                            <comment id="3898342" author="oliver@sensortower.com" created="Thu, 24 Jun 2021 18:21:58 +0000"  >&lt;p&gt;&lt;img class=&quot;emoticon&quot; src=&quot;https://jira.mongodb.org/images/icons/emoticons/biggrin.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&#160;- we were actually waiting for 4.4.7 to come out for us to try it.&#160; But we will test it soon, depends on Ivan&apos;s schedule!&lt;/p&gt;</comment>
                            <comment id="3897790" author="dmitry.agranat" created="Thu, 24 Jun 2021 15:35:17 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ivan.takarlikov%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;ivan.takarlikov@sensortower.com&quot;&gt;ivan.takarlikov@sensortower.com&lt;/a&gt;, &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=oliver%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;oliver@sensortower.com&quot;&gt;oliver@sensortower.com&lt;/a&gt;, the &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56347&quot; title=&quot;Enable LSE intrinsics in release&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56347&quot;&gt;&lt;del&gt;SERVER-56347&lt;/del&gt;&lt;/a&gt; is fixed and you can try it out on the release candidate 4.4.7-rc0. We are very interested in hearing from you about the results.&lt;/p&gt;</comment>
                            <comment id="3793811" author="dmitry.agranat" created="Thu, 20 May 2021 09:38:46 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=oliver%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;oliver@sensortower.com&quot;&gt;oliver@sensortower.com&lt;/a&gt;, my last comment was just to underline the importance of using a platform with a libc that uses LSE, that&apos;s all.&lt;/p&gt;</comment>
                            <comment id="3786432" author="oliver@sensortower.com" created="Tue, 18 May 2021 20:56:55 +0000"  >&lt;p&gt;Hi Dmitry -&#160;&lt;/p&gt;

&lt;p&gt;It is Ivan and my understanding that this option&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Waiting for the release of&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56347&quot; title=&quot;Enable LSE intrinsics in release&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56347&quot;&gt;&lt;del&gt;SERVER-56347&lt;/del&gt;&lt;/a&gt;&#160;(Currently, I am unable to provide the ETA for its release).&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;does not require a custom 4.4.5 build and therefore does not require you to know what OS version we are on.&#160; Please let us know if we misunderstood you.&#160; Sorry about the hassle. GCC 8.5 was just released so&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56347&quot; title=&quot;Enable LSE intrinsics in release&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56347&quot;&gt;&lt;del&gt;SERVER-56347&lt;/del&gt;&lt;/a&gt;&#160;should be resolved soon.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;</comment>
                            <comment id="3784871" author="JIRAUSER1259576" created="Tue, 18 May 2021 16:54:57 +0000"  >&lt;p&gt;We are running on Amazon Linux 2&#160;&lt;/p&gt;</comment>
                            <comment id="3780938" author="dmitry.agranat" created="Tue, 18 May 2021 07:54:05 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ivan.takarlikov%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;ivan.takarlikov@sensortower.com&quot;&gt;ivan.takarlikov@sensortower.com&lt;/a&gt;, as per one of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56237?focusedCommentId=3743145&amp;amp;page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-3743145&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;my earlier comments&lt;/a&gt;, could you please clarify the exact OS you intend to deploy the fix on? It is important for a platform to be with a libc that uses LSE, per &lt;a href=&quot;https://github.com/aws/aws-graviton-getting-started/blob/main/c-c%2B%2B.md#large-system-extensions-lse&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/aws/aws-graviton-getting-started/blob/main/c-c%2B%2B.md#large-system-extensions-lse&lt;/a&gt;. Note that on Ubuntu 18.04 you would need to install an alternative libc package, called libc6-lse.&lt;/p&gt;</comment>
                            <comment id="3778093" author="JIRAUSER1259576" created="Mon, 17 May 2021 19:35:28 +0000"  >&lt;p&gt;Hey, Dmitry! Looks like we got GCC 8.5 released - &lt;a href=&quot;https://gcc.gnu.org/releases.html&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://gcc.gnu.org/releases.html&lt;/a&gt;&#160;&lt;/p&gt;

&lt;p&gt;Can we expect a fix for our issue soon?&#160;&lt;/p&gt;</comment>
                            <comment id="3748900" author="JIRAUSER1259576" created="Fri, 30 Apr 2021 15:10:49 +0000"  >&lt;p&gt;Hey! We prefer to proceed with 2nd option - (Waiting for the release of&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56347&quot; title=&quot;Enable LSE intrinsics in release&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56347&quot;&gt;&lt;del&gt;SERVER-56347&lt;/del&gt;&lt;/a&gt;&#160;)&lt;/p&gt;

&lt;p&gt;Thanks for help!&#160;&lt;/p&gt;</comment>
                            <comment id="3743145" author="dmitry.agranat" created="Wed, 28 Apr 2021 09:06:19 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ivan.takarlikov%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;ivan.takarlikov@sensortower.com&quot;&gt;ivan.takarlikov@sensortower.com&lt;/a&gt;, I have a few follow-up options in regards to the next steps. In order to progress this investigation, these are the options that should bring us closer to the reported issue resolution:&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;Providing you with a custom 4.4.5 build which targets &lt;tt&gt;armv8.1-a&lt;/tt&gt; or &lt;tt&gt;armv8.2-a&lt;/tt&gt;, where the LSE intrinsics are built-in. If this is a valid option for you, could you provide the exact OS version and MongoDB edition you would need? I saw that you were using Amazon Linux release 2 (Karoo) but I am not sure if this is an enterprise or community edition.&lt;/li&gt;
	&lt;li&gt;Waiting for the release of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56347&quot; title=&quot;Enable LSE intrinsics in release&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56347&quot;&gt;&lt;del&gt;SERVER-56347&lt;/del&gt;&lt;/a&gt; (Currently, I am unable to provide the ETA for its release).&lt;/li&gt;
	&lt;li&gt;Providing us with a simple reproducer that shows the reported difference between the ARM and x86_64 architecture.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Please let us know which option works best for you.&lt;br/&gt;
Dima&lt;/p&gt;</comment>
                            <comment id="3740995" author="JIRAUSER1259576" created="Tue, 27 Apr 2021 13:48:12 +0000"  >&lt;p&gt;Thanks, Dmitry!&#160;&lt;/p&gt;

&lt;p&gt;Should we wait for the new mongo minor release (4.4.6 for example) after the release of GCC 8.5?&#160;&lt;/p&gt;</comment>
                            <comment id="3740965" author="dmitry.agranat" created="Tue, 27 Apr 2021 13:40:48 +0000"  >&lt;p&gt;Thanks &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ivan.takarlikov%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;ivan.takarlikov@sensortower.com&quot;&gt;ivan.takarlikov@sensortower.com&lt;/a&gt; for providing the requested information. &lt;/p&gt;

&lt;p&gt;It turns out the reason you have experienced such an issue on the ARM instance is because of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56347&quot; title=&quot;Enable LSE intrinsics in release&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56347&quot;&gt;&lt;del&gt;SERVER-56347&lt;/del&gt;&lt;/a&gt;. And we are currently waiting for GCC 8.5 release.&lt;/p&gt;

&lt;p&gt;You can start watching &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56347&quot; title=&quot;Enable LSE intrinsics in release&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56347&quot;&gt;&lt;del&gt;SERVER-56347&lt;/del&gt;&lt;/a&gt; for updates and please do let us know if you have any questions.&lt;/p&gt;

&lt;p&gt;Regards,&lt;br/&gt;
Dima&lt;/p&gt;</comment>
                            <comment id="3739336" author="JIRAUSER1259576" created="Mon, 26 Apr 2021 18:08:37 +0000"  >&lt;p&gt;Attached files with logs/diagnostic.data and perf data.&lt;/p&gt;

&lt;p&gt;Perf data was collected during that period 2021-04-26T14:24:26Z - 2021-04-26T14:31:33Z (it also reflected on file names)&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;
&lt;p/&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ec2-user&lt;/span&gt;&lt;span style=&quot;color: gray; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;@itunes&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-sales-reports-arm-db-master perf_data]$ &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;while&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;true&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;; &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;do&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; sudo perf record -a -g -F &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;99&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; -o perf.data.$(date -u +%FT%TZ) sleep &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;60&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;; done&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Woken up &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;265&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; times to write data ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Captured and wrote &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;74.550&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; MB perf.data.&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2021&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;04&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-26T14:&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;24&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;:26Z (&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;265712&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; samples) ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Woken up &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;380&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; times to write data ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Captured and wrote &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;106.594&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; MB perf.data.&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2021&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;04&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-26T14:&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;25&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;:26Z (&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;378341&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; samples) ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Woken up &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;324&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; times to write data ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Captured and wrote &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;88.790&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; MB perf.data.&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2021&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;04&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-26T14:&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;26&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;:27Z (&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;315432&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; samples) ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Woken up &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;379&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; times to write data ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Captured and wrote &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;106.679&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; MB perf.data.&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2021&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;04&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-26T14:&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;27&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;:28Z (&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;378378&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; samples) ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Woken up &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;373&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; times to write data ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Captured and wrote &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;103.880&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; MB perf.data.&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2021&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;04&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-26T14:&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;28&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;:29Z (&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;368561&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; samples) ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Woken up &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;374&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; times to write data ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Captured and wrote &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;106.713&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; MB perf.data.&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2021&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;04&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-26T14:&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;29&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;:30Z (&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;378749&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; samples) ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Woken up &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;376&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; times to write data ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Captured and wrote &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;106.685&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; MB perf.data.&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2021&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;04&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-26T14:&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;30&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;:32Z (&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;378772&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; samples) ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Woken up &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;124&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; times to write data ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ perf record: Captured and wrote &lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;47.446&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; MB perf.data.&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2021&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;04&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-26T14:&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;31&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;:33Z (&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;167866&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; samples) ]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;
&lt;p&gt;About `Slow query` - yeah, it was cleaned by me, because it contains some sensitive info. But if that info important for you, I can provide an example of that logs with changed sensitive data to a random one and with the kept structure of log.&lt;/p&gt;

&lt;p&gt;BTW, thanks for the investigation!&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;</comment>
                            <comment id="3737915" author="dmitry.agranat" created="Mon, 26 Apr 2021 09:14:16 +0000"  >&lt;p&gt;Thanks &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ivan.takarlikov%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;ivan.takarlikov@sensortower.com&quot;&gt;ivan.takarlikov@sensortower.com&lt;/a&gt;, after inspecting the provided data, I see what you mean. I have a couple of clarification points at this stage:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Is it possible to collect &lt;tt&gt;perf&lt;/tt&gt; during a similar event when running on &lt;tt&gt;Graviton 2&lt;/tt&gt; instance?&lt;/li&gt;
	&lt;li&gt;Provided logs do not contain any &quot;Slow query&quot; information, is it because all the data was redacted?&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;How to record &lt;tt&gt;perf&lt;/tt&gt; call stack samples and generate text output:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: #008200; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;# capture in separate files of 60 seconds each&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;while&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; &lt;/span&gt;&lt;span style=&quot;color: #ff1493; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;true&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;; &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;do&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; perf record -a -g -F 99 -o perf.data.$(&lt;/span&gt;&lt;span style=&quot;color: #ff1493; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;date&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; -u +%FT%TZ) &lt;/span&gt;&lt;span style=&quot;color: #ff1493; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;sleep&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; 60; &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;done&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: #008200; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;# then run perf script as above on the subset of files of interest&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;for&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; fn &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;in&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; ...; &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;do&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; perf script -i $fn &amp;gt;$fn.txt; &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;done&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;After the &lt;tt&gt;perf&lt;/tt&gt; data is collected, we will need the exact timestamp when the &lt;tt&gt;perf&lt;/tt&gt; data was collected, a fresh set of &lt;tt&gt;diagnostic.data&lt;/tt&gt; and &lt;tt&gt;mongod&lt;/tt&gt; logs covering the time of the event.&lt;/p&gt;

&lt;p&gt;Note that it is important to run &lt;tt&gt;perf script&lt;/tt&gt; on the same node where &lt;tt&gt;perf.data&lt;/tt&gt; was generated so that it can be correctly symbolized using the addresses on that machine. Also, the &lt;tt&gt;perf&lt;/tt&gt; utility, which is a part of &lt;tt&gt;linux-tools&lt;/tt&gt; package, is not installed by default.&lt;/p&gt;</comment>
                            <comment id="3736551" author="JIRAUSER1259576" created="Fri, 23 Apr 2021 19:48:07 +0000"  >&lt;p&gt;There are two log files and data directories from both x86 and ARM servers. ARM server was primary and experienced problems since Fri Apr 23 09:30:00 UTC 2021, so we switched that primary back to x86 at Fri Apr 23 15:33:10 UTC 2021 (see screenshot for details). After switch request rate and nature of queries to mongo stayed the same but load decreased significantly on x86 server.&#160;&lt;/p&gt;

&lt;p&gt;MongoDB versions are the same on both instances - 4.4.5&lt;/p&gt;</comment>
                            <comment id="3731485" author="dmitry.agranat" created="Wed, 21 Apr 2021 20:25:39 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ivan.takarlikov%40sensortower.com&quot; class=&quot;user-hover&quot; rel=&quot;ivan.takarlikov@sensortower.com&quot;&gt;ivan.takarlikov@sensortower.com&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;Would you please archive (tar or zip) the mongod.log files covering the incident and the &lt;tt&gt;$dbpath/diagnostic.data&lt;/tt&gt; directory (the contents are described &lt;a href=&quot;https://docs.mongodb.com/manual/administration/analyzing-mongodb-performance/#full-time-diagnostic-data-capture&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;) and upload them to this &lt;a href=&quot;https://10gen-httpsupload.s3.amazonaws.com/upload_forms/e152830d-e8e9-4751-ae03-6c0524cfd3f0.html&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;support uploader&lt;/a&gt; location?&lt;/p&gt;

&lt;p&gt;Files uploaded to this portal are visible only to MongoDB employees and are routinely deleted after some time.&lt;/p&gt;

&lt;p&gt;Please mention the exact timestamp (start/end) and the timezone of the event you&apos;d like us to investigate.&lt;/p&gt;

&lt;p&gt;So that we could compare and comment on the reported degradation, please upload the requested data separately for:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;AWS r5d.16xlarge to r6gd.16xlarge (Intel Xeon Platinum 8000)&lt;/li&gt;
	&lt;li&gt;AWS r5d.16xlarge to r6gd.16xlarge (AWS Graviton 2)&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;One clarifying question at this time, was the MongoDB version the same on these two instances?&lt;/p&gt;

&lt;p&gt;Dima&lt;/p&gt;</comment>
                            <comment id="3730829" author="JIRAUSER1259576" created="Wed, 21 Apr 2021 16:43:24 +0000"  >&lt;p&gt;Screenshot from description is in attachments&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="1691430">SERVER-56347</issuekey>
        </issuelink>
                            </outwardlinks>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="1691430">SERVER-56347</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                    </issuelinks>
                <attachments>
                            <attachment id="312031" name="Screen Shot 2021-04-27 at 16.21.33.png" size="422252" author="dmitry.agranat@mongodb.com" created="Tue, 27 Apr 2021 13:28:37 +0000"/>
                            <attachment id="312032" name="Screen Shot 2021-04-27 at 16.21.56.png" size="182801" author="dmitry.agranat@mongodb.com" created="Tue, 27 Apr 2021 13:28:46 +0000"/>
                            <attachment id="312718" name="image-2021-04-30-19-10-21-812.png" size="12045" author="ivan.takarlikov@sensortower.com" created="Fri, 30 Apr 2021 15:10:23 +0000"/>
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