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    <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>
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<item>
            <title>[SERVER-24005] Improve primary write-side performance</title>
                <link>https://jira.mongodb.org/browse/SERVER-24005</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently enabling replication has a significant overhead on the primary in some workloads. We want a primary&apos;s performance to be as close to a standalone node&apos;s as possible.&lt;/p&gt;</description>
                <environment></environment>
        <key id="283781">SERVER-24005</key>
            <summary>Improve primary write-side performance</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="mathias@mongodb.com">Mathias Stearn</assignee>
                                    <reporter username="mathias@mongodb.com">Mathias Stearn</reporter>
                        <labels>
                    </labels>
                <created>Mon, 2 May 2016 15:42:27 +0000</created>
                <updated>Sat, 19 Nov 2016 00:04:53 +0000</updated>
                            <resolved>Tue, 17 May 2016 15:42:36 +0000</resolved>
                                                    <fixVersion>3.3.6</fixVersion>
                                    <component>Performance</component>
                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>9</watches>
                                                                                                                <comments>
                            <comment id="1301320" author="nick@innsenroute.com" created="Tue, 21 Jun 2016 15:27:54 +0000"  >&lt;p&gt;I did a quick test yesterday and I didn&apos;t see this behavior with the latest 3.2 branch release. Thx.&lt;/p&gt;</comment>
                            <comment id="1260131" author="xgen-internal-githook" created="Mon, 9 May 2016 22:59:34 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;RedBeard0531&apos;, u&apos;name&apos;: u&apos;Mathias Stearn&apos;, u&apos;email&apos;: u&apos;mathias@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-24005&quot; title=&quot;Improve primary write-side performance&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-24005&quot;&gt;&lt;del&gt;SERVER-24005&lt;/del&gt;&lt;/a&gt; Pass batches of DocWriters all the way down to the RecordStore&lt;/p&gt;

&lt;p&gt;This further amortizes the costs of bookkeeping work over the whole batch.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/839a4d88a9b4627f0aa69ad6faba2c36e10b41ae&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/839a4d88a9b4627f0aa69ad6faba2c36e10b41ae&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1260130" author="xgen-internal-githook" created="Mon, 9 May 2016 22:59:33 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;RedBeard0531&apos;, u&apos;name&apos;: u&apos;Mathias Stearn&apos;, u&apos;email&apos;: u&apos;mathias@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-24005&quot; title=&quot;Improve primary write-side performance&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-24005&quot;&gt;&lt;del&gt;SERVER-24005&lt;/del&gt;&lt;/a&gt; Allow getNextOpTime() to hand out batches of OpTimes&lt;/p&gt;

&lt;p&gt;This allows a lot of expensive work that is done inside of a mutex to be done&lt;br/&gt;
once per batch rather than once per document.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/955304d50df6c94bb10e757736e531ce91627d23&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/955304d50df6c94bb10e757736e531ce91627d23&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1260129" author="xgen-internal-githook" created="Mon, 9 May 2016 22:59:32 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;RedBeard0531&apos;, u&apos;name&apos;: u&apos;Mathias Stearn&apos;, u&apos;email&apos;: u&apos;mathias@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-24005&quot; title=&quot;Improve primary write-side performance&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-24005&quot;&gt;&lt;del&gt;SERVER-24005&lt;/del&gt;&lt;/a&gt; inline WiredTigerRecoveryUnit::get()&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/0257f34483b0dee3691b8bd4a6715ac33c250b67&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/0257f34483b0dee3691b8bd4a6715ac33c250b67&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1260128" author="xgen-internal-githook" created="Mon, 9 May 2016 22:59:31 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;RedBeard0531&apos;, u&apos;name&apos;: u&apos;Mathias Stearn&apos;, u&apos;email&apos;: u&apos;mathias@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-24005&quot; title=&quot;Improve primary write-side performance&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-24005&quot;&gt;&lt;del&gt;SERVER-24005&lt;/del&gt;&lt;/a&gt; Use FastClockSource in getNextGlobalTimestamp()&lt;/p&gt;

&lt;p&gt;This is called under a big global lock and is substantially faster on some&lt;br/&gt;
systems.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/423ba14c79ab2749e8717cc36e4efdb204de9751&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/423ba14c79ab2749e8717cc36e4efdb204de9751&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1260127" author="xgen-internal-githook" created="Mon, 9 May 2016 22:59:30 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;RedBeard0531&apos;, u&apos;name&apos;: u&apos;Mathias Stearn&apos;, u&apos;email&apos;: u&apos;mathias@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-24005&quot; title=&quot;Improve primary write-side performance&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-24005&quot;&gt;&lt;del&gt;SERVER-24005&lt;/del&gt;&lt;/a&gt; Mark WiredTigerRecordStore final&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6cb108ba117f272f5a6db9cd99d4a5c30cc27d28&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6cb108ba117f272f5a6db9cd99d4a5c30cc27d28&lt;/a&gt;&lt;/p&gt;</comment>
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