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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>
    </build-info>


<item>
            <title>[SERVER-10696] repl/mod_move.js runs SUPER SLOW on debug builders (20+ min vs 1 min)</title>
                <link>https://jira.mongodb.org/browse/SERVER-10696</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;I didn&apos;t believe this when I first saw it, but it&apos;s true. Here is the execution time of `jstests/repl/mod_move.js` on a really fast Linux 64-bit box as of Sept 6 (rev def8f6fb859a04)&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;Non-debug build: 18 seconds&lt;/li&gt;
	&lt;li&gt;Debug build: &lt;b&gt;13 MINUTES&lt;/b&gt;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Example from MCI Sept 6 (rev 4b4fd431f5)&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;&lt;p&gt;&lt;a href=&quot;http://mci.10gen.com/ui/task/mongodb_mongo_master_linux_32_debug_4b4fd431f5c28a4d138c113f9173abd5bb6526b3_13_09_05_14_06_07_replication_linux_32&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://mci.10gen.com/ui/task/mongodb_mongo_master_linux_32_debug_4b4fd431f5c28a4d138c113f9173abd5bb6526b3_13_09_05_14_06_07_replication_linux_32&lt;/a&gt;&lt;br/&gt;
  &lt;a href=&quot;http://buildlogs.mongodb.org/mci_0.9_linux_32_debug/builds/96/test/replication_0/mod_move.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_32_debug/builds/96/test/replication_0/mod_move.js&lt;/a&gt;&lt;br/&gt;
&lt;b&gt;22.1881 minutes&lt;/b&gt;&lt;/p&gt;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Debug builds are expected to be slower, but this is seriously crazy slow, and that test failed because it was so slow.&lt;/p&gt;

&lt;p&gt;How long has this been true? Most buildbot debug instances have been disabled so we&apos;ve lost that data. Here is the one remaining one:&lt;/p&gt;

&lt;p&gt;Buildbot Linux 32-bit debug&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;Thu Sep 5 &lt;a href=&quot;http://buildbot.10gen.cc/builders/Linux%2032-bit%20debug/builds/3259/steps/smokeRepl_smokeClone/logs/stdio&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://buildbot.10gen.cc/builders/Linux%2032-bit%20debug/builds/3259/steps/smokeRepl_smokeClone/logs/stdio&lt;/a&gt;&lt;br/&gt;
  9.4818 minutes&lt;/li&gt;
	&lt;li&gt;Tue Jul 9 &lt;a href=&quot;http://buildbot.10gen.cc/builders/Linux%2032-bit%20debug/builds/3062/steps/test_12/logs/stdio&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://buildbot.10gen.cc/builders/Linux%2032-bit%20debug/builds/3062/steps/test_12/logs/stdio&lt;/a&gt;&lt;br/&gt;
  7.8618 minutes&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="88801">SERVER-10696</key>
            <summary>repl/mod_move.js runs SUPER SLOW on debug builders (20+ min vs 1 min)</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="-1">Unassigned</assignee>
                                    <reporter username="matt.kangas">Matt Kangas</reporter>
                        <labels>
                            <label>buildbot</label>
                    </labels>
                <created>Fri, 6 Sep 2013 16:05:47 +0000</created>
                <updated>Wed, 10 Dec 2014 23:18:00 +0000</updated>
                            <resolved>Wed, 6 Aug 2014 16:00:06 +0000</resolved>
                                                                    <component>Testing Infrastructure</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="682816" author="matt.kangas@10gen.com" created="Wed, 6 Aug 2014 16:00:06 +0000"  >&lt;p&gt;Issue not longer manifests in MCI DEBUG builds, on either 2.6 or master&lt;/p&gt;</comment>
                            <comment id="420830" author="matt.kangas@10gen.com" created="Mon, 9 Sep 2013 12:46:44 +0000"  >&lt;p&gt;Test of execution time for this test across multiple versions (running on buildmeister.10gen.cc)&lt;/p&gt;

&lt;p&gt;master (def8f6fb859a04)&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;non-debug: 0m20.988s&lt;/li&gt;
	&lt;li&gt;debug:	 10m43.605s&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;r2.5.2&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;non-debug: 0m20.297s&lt;/li&gt;
	&lt;li&gt;debug:&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;r2.5.1&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;non-debug:&lt;/li&gt;
	&lt;li&gt;debug:&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;r2.5.0&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;non-debug: 0m17.786s&lt;/li&gt;
	&lt;li&gt;debug:	 8m42.723s&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;r2.4.0&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;non-debug: 0m16.022s&lt;/li&gt;
	&lt;li&gt;debug:	 12m10.375s&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;r2.3.1 (2.3.0 fails to compile)&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;non-debug: 0m14.599s&lt;/li&gt;
	&lt;li&gt;debug:	 12m1.012s&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;r2.2.0&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;non-debug: 0m17.271s&lt;/li&gt;
	&lt;li&gt;debug:	 8m9.373s&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;r2.1.0 (can&apos;t compile)&lt;/p&gt;</comment>
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