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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-10726] memory.js taking 7+ hours on Linux 64 DEBUG</title>
                <link>https://jira.mongodb.org/browse/SERVER-10726</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;SlowNightly tests were never run on Buildbot&apos;s Linux 64 DEBUG builder, so this is a newly discovered issue.  It looks like memory.js takes around 440 minutes on MCI on a regular basis which, when added to the rest of the slowNight suite, adds up to more than 12 hours.  This causes the suite to fail.&lt;/p&gt;

&lt;p&gt;And example of a log output for this test taking too long:&lt;br/&gt;
&lt;a href=&quot;http://buildlogs.mongodb.org/mci_0.9_linux_64_debug/builds/769/test/slow_nightly_tests_0/memory.js&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://buildlogs.mongodb.org/mci_0.9_linux_64_debug/builds/769/test/slow_nightly_tests_0/memory.js&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="89207">SERVER-10726</key>
            <summary>memory.js taking 7+ hours on Linux 64 DEBUG</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="andrew.morrow@mongodb.com">Andrew Morrow</assignee>
                                    <reporter username="ian@mongodb.com">Ian Whalen</reporter>
                        <labels>
                    </labels>
                <created>Tue, 10 Sep 2013 15:24:32 +0000</created>
                <updated>Wed, 28 Oct 2015 16:10:18 +0000</updated>
                            <resolved>Thu, 19 Sep 2013 18:33:19 +0000</resolved>
                                                    <fixVersion>2.5.3</fixVersion>
                                    <component>JavaScript</component>
                    <component>Testing Infrastructure</component>
                                        <votes>1</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="428612" author="acm" created="Thu, 19 Sep 2013 18:33:19 +0000"  >&lt;p&gt;The most recent run of memory.js took less than 40 minutes:&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;http://buildlogs.mongodb.org/mci_0.9_linux_64_debug/builds/869/test/slow_nightly_tests_0/memory.js&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://buildlogs.mongodb.org/mci_0.9_linux_64_debug/builds/869/test/slow_nightly_tests_0/memory.js&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="428146" author="auto" created="Wed, 18 Sep 2013 22:15:06 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;ehershey&apos;, u&apos;name&apos;: u&apos;Ernie Hershey&apos;, u&apos;email&apos;: u&apos;github@ernie.org&apos;}
&lt;p&gt;Message: Merge pull request #5 from acmorrow/&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-10726&quot; title=&quot;memory.js taking 7+ hours on Linux 64 DEBUG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-10726&quot;&gt;&lt;del&gt;SERVER-10726&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-10726&quot; title=&quot;memory.js taking 7+ hours on Linux 64 DEBUG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-10726&quot;&gt;&lt;del&gt;SERVER-10726&lt;/del&gt;&lt;/a&gt; Enable optimization for all DEBUG variants&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mci/commit/1f543bea501b555af21dda5b2cf62601b8f1f42e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mci/commit/1f543bea501b555af21dda5b2cf62601b8f1f42e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="428145" author="auto" created="Wed, 18 Sep 2013 22:15:04 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;ehershey&apos;, u&apos;name&apos;: u&apos;Ernie Hershey&apos;, u&apos;email&apos;: u&apos;github@ernie.org&apos;}
&lt;p&gt;Message: Merge pull request #5 from acmorrow/&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-10726&quot; title=&quot;memory.js taking 7+ hours on Linux 64 DEBUG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-10726&quot;&gt;&lt;del&gt;SERVER-10726&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-10726&quot; title=&quot;memory.js taking 7+ hours on Linux 64 DEBUG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-10726&quot;&gt;&lt;del&gt;SERVER-10726&lt;/del&gt;&lt;/a&gt; Enable optimization for all DEBUG variants&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mci/commit/1f543bea501b555af21dda5b2cf62601b8f1f42e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mci/commit/1f543bea501b555af21dda5b2cf62601b8f1f42e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="428144" author="auto" created="Wed, 18 Sep 2013 22:15:02 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;acmorrow&apos;, u&apos;name&apos;: u&apos;Andrew Morrow&apos;, u&apos;email&apos;: u&apos;acm@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-10726&quot; title=&quot;memory.js taking 7+ hours on Linux 64 DEBUG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-10726&quot;&gt;&lt;del&gt;SERVER-10726&lt;/del&gt;&lt;/a&gt; Enable optimization for all DEBUG variants&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mci/commit/f3c652f23e95856ec54b31b3c9934fda9ed7ff2b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mci/commit/f3c652f23e95856ec54b31b3c9934fda9ed7ff2b&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="428118" author="auto" created="Wed, 18 Sep 2013 21:39:16 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;acmorrow&apos;, u&apos;name&apos;: u&apos;Andrew Morrow&apos;, u&apos;email&apos;: u&apos;acm@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-10726&quot; title=&quot;memory.js taking 7+ hours on Linux 64 DEBUG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-10726&quot;&gt;&lt;del&gt;SERVER-10726&lt;/del&gt;&lt;/a&gt; Suppress warnings in build of internal v8&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/be4bc7d410dce6d82015143964c6f9bf76b16eec&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/be4bc7d410dce6d82015143964c6f9bf76b16eec&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="427476" author="acm" created="Tue, 17 Sep 2013 21:51:35 +0000"  >&lt;p&gt;Deployment of this is held up behind finding a way to update the v8 SConscript to suppress certain new warning classes that only show up when both optimization and debugging are enabled, in a way that will work across a large space of compiler classes and versions. Unfortunately, in that context, we don&apos;t have access to addFlagIfSupported in the top level SConstruct, nor do we have an easy hook into the configure mechanism.&lt;/p&gt;</comment>
                            <comment id="427234" author="eliot" created="Tue, 17 Sep 2013 17:23:25 +0000"  >&lt;p&gt;Drew - agree.  That looks good and we should switch builders.&lt;/p&gt;</comment>
                            <comment id="427232" author="acm" created="Tue, 17 Sep 2013 17:18:33 +0000"  >&lt;p&gt;Running memory.js on my local linux machine:&lt;/p&gt;

&lt;p&gt;mongod built with --dbg=off --opt=on:&lt;br/&gt;
9.74user 11.31system 21:30.13elapsed 1%CPU (0avgtext+0avgdata 36220maxresident)k&lt;br/&gt;
0inputs+0outputs (0major+13183minor)pagefaults 0swaps&lt;/p&gt;

&lt;p&gt;This lines up pretty reasonably with what we observe on MCI: &lt;a href=&quot;http://buildlogs.mongodb.org/mci_0.9_linux_64/builds/864/test/slow_nightly_tests_0/memory.js&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://buildlogs.mongodb.org/mci_0.9_linux_64/builds/864/test/slow_nightly_tests_0/memory.js&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;mongod built with --dbg=on --opt=on:&lt;br/&gt;
22.78user 23.15system 43:25.17elapsed 1%CPU (0avgtext+0avgdata 40088maxresident)k&lt;br/&gt;
0inputs+0outputs (0major+21824minor)pagefaults 0swaps&lt;/p&gt;

&lt;p&gt;Not bad!&lt;/p&gt;

&lt;p&gt;If we like this, and I think we do, I&apos;ll work with Ernie and the MCI folks to get the DEBUG MCI builders running with --opt=on in addition to --dbg=on.&lt;/p&gt;</comment>
                            <comment id="426469" author="auto" created="Mon, 16 Sep 2013 21:47:39 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;acmorrow&apos;, u&apos;name&apos;: u&apos;Andrew Morrow&apos;, u&apos;email&apos;: u&apos;acm@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-10726&quot; title=&quot;memory.js taking 7+ hours on Linux 64 DEBUG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-10726&quot;&gt;&lt;del&gt;SERVER-10726&lt;/del&gt;&lt;/a&gt; Orthogonalize debugging and optimization options&lt;/p&gt;

&lt;p&gt;Introduce new flags --dbg and --opt which permit independent control over optimization and&lt;br/&gt;
debugging. The old --d, --dd, and --release flags were not independent, and had surprising&lt;br/&gt;
interactions, particularly on Windows.&lt;/p&gt;

&lt;p&gt;The old flags are still supported in a legacy mode for --d and --dd builds, cannot be mixed&lt;br/&gt;
with the new.&lt;/p&gt;

&lt;p&gt;For builds specifying none of --dbg, --opt, --d, or --dd, there should be no behavior change,&lt;br/&gt;
except on Windows. On that platform, a no-flags-specified build will now default to&lt;br/&gt;
optimization enabled, whereas before it did not.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8ba48088a377ff819e696b1123594005d6d98d01&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8ba48088a377ff819e696b1123594005d6d98d01&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="424610" author="ian@10gen.com" created="Fri, 13 Sep 2013 17:46:40 +0000"  >&lt;p&gt;First pass at a solution will likely involve separating into separate flags the &apos;disable optimizations&apos; and &apos;enable DEBUG mode&apos; changes implied by the &amp;#45;-dd flag in Scons.&lt;/p&gt;</comment>
                            <comment id="421811" author="eliot" created="Tue, 10 Sep 2013 15:27:05 +0000"  >&lt;p&gt;slowNightly should not run with debug. will never work&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="90714">SERVER-10816</issuekey>
        </issuelink>
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