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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-16574] Do not call Explain::getPlanSummary on every insert/update, or eliminate its allocating behavior</title>
                <link>https://jira.mongodb.org/browse/SERVER-16574</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Explain::getPlanSummary generates a new std::string of moderate size, and the heap allocation and freeing around the lifetime of that string are an unnecessary performance hit on hot code paths such as CRUD operations.  If we&apos;re going to keep doing it, we need to make it closer to free.  Better might be not to generate the summary string in the common case.&lt;/p&gt;</description>
                <environment></environment>
        <key id="175113">SERVER-16574</key>
            <summary>Do not call Explain::getPlanSummary on every insert/update, or eliminate its allocating behavior</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="david.storch@mongodb.com">David Storch</assignee>
                                    <reporter username="schwerin@mongodb.com">Andy Schwerin</reporter>
                        <labels>
                    </labels>
                <created>Wed, 17 Dec 2014 18:16:48 +0000</created>
                <updated>Fri, 23 Jan 2015 23:35:41 +0000</updated>
                            <resolved>Thu, 15 Jan 2015 15:25:38 +0000</resolved>
                                    <version>2.8.0-rc2</version>
                                    <fixVersion>3.0.0-rc6</fixVersion>
                                    <component>Querying</component>
                    <component>Write Ops</component>
                                        <votes>0</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="805338" author="xgen-internal-githook" created="Thu, 15 Jan 2015 15:20:36 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dstorch&apos;, u&apos;name&apos;: u&apos;David Storch&apos;, u&apos;email&apos;: u&apos;david.storch@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16574&quot; title=&quot;Do not call Explain::getPlanSummary on every insert/update, or eliminate its allocating behavior&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16574&quot;&gt;&lt;del&gt;SERVER-16574&lt;/del&gt;&lt;/a&gt; remove summary string from PlanSummaryStats&lt;/p&gt;

&lt;p&gt;This removes a potentially expensive string allocation from every update operation.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/5e42956e1c816dad5ffd5334565ddc623eebe6d2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/5e42956e1c816dad5ffd5334565ddc623eebe6d2&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="174132">SERVER-16517</issuekey>
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