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    <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-16476] Improvement in certain mongo-perf test cases</title>
                <link>https://jira.mongodb.org/browse/SERVER-16476</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;h2&gt;&lt;a name=&quot;Problem&quot;&gt;&lt;/a&gt;Problem&lt;/h2&gt;
&lt;p&gt;Under 2.8.0-rc2 with WT storage engine there are a few mongo-perf tests that show further optimization could be consider, when considered against mmapv1.&lt;/p&gt;

&lt;p&gt;Update.MmsIncShallow1&lt;br/&gt;
Update.MmsIncShallow2&lt;br/&gt;
Update.MmsIncDeep1&lt;br/&gt;
Update.MmsIncDeepSharedPath2&lt;br/&gt;
Update.MmsIncDeepSharedPath3&lt;br/&gt;
Update.MmsIncDeepDistinctPath2&lt;br/&gt;
Update.MmsIncDeepDistinctPath3&lt;br/&gt;
Update.FieldAtOffset&lt;/p&gt;

&lt;p&gt;Each of these tests is a single contended document, with 512k fields, where one field is being updated.&lt;/p&gt;
&lt;h2&gt;&lt;a name=&quot;Reproduce&quot;&gt;&lt;/a&gt;Reproduce&lt;/h2&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;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 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;python ./benchrun.py -f testcases/*.js --trialTime 5 --trialCount 1 -l mytest --nodyno --testFilter &quot;[&apos;Update.MmsIncShallow1&apos;]&quot; -m 1 -c 1 -t 12&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="173486">SERVER-16476</key>
            <summary>Improvement in certain mongo-perf test cases</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="alvin">Alvin Richards</reporter>
                        <labels>
                            <label>28qa</label>
                    </labels>
                <created>Tue, 9 Dec 2014 16:25:13 +0000</created>
                <updated>Fri, 15 May 2015 20:02:39 +0000</updated>
                            <resolved>Fri, 15 May 2015 20:02:39 +0000</resolved>
                                    <version>2.8.0-rc2</version>
                                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>7</watches>
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