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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-60245] Reduce RecordId copying in hot code paths</title>
                <link>https://jira.mongodb.org/browse/SERVER-60245</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-58949&quot; title=&quot;Support RecordId strings larger than 14 bytes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-58949&quot;&gt;&lt;del&gt;SERVER-58949&lt;/del&gt;&lt;/a&gt; increased the size of RecordId from 16 bytes to 32 and added a ConstSharedBuffer member that made the type no longer trivially copiable. &lt;/p&gt;

&lt;p&gt;This caused some performance regressions in hot code paths. Reduce the number of RecordId copies required in these code paths by passing references and moving where able.&lt;/p&gt;

&lt;p&gt;These hot paths include, but are not limited to: validation, index builds, and collection scans&lt;/p&gt;</description>
                <environment></environment>
        <key id="1884525">SERVER-60245</key>
            <summary>Reduce RecordId copying in hot code paths</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="13201">Fixed</resolution>
                                        <assignee username="louis.williams@mongodb.com">Louis Williams</assignee>
                                    <reporter username="louis.williams@mongodb.com">Louis Williams</reporter>
                        <labels>
                    </labels>
                <created>Mon, 27 Sep 2021 15:47:13 +0000</created>
                <updated>Sun, 29 Oct 2023 21:48:09 +0000</updated>
                            <resolved>Fri, 15 Oct 2021 21:00:16 +0000</resolved>
                                                    <fixVersion>5.2.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4127461" author="xgen-internal-githook" created="Fri, 15 Oct 2021 20:43:45 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Louis Williams&apos;, &apos;email&apos;: &apos;louis.williams@mongodb.com&apos;, &apos;username&apos;: &apos;louiswilliams&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-60245&quot; title=&quot;Reduce RecordId copying in hot code paths&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-60245&quot;&gt;&lt;del&gt;SERVER-60245&lt;/del&gt;&lt;/a&gt; Reduce RecordId copying in classic query engine collection scans&lt;br/&gt;
This also makes minor improvements in RecordId comparison and `isValid()` functions&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2119cbfd590aa667b5ee3d4b3b2a331cc4d58486&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2119cbfd590aa667b5ee3d4b3b2a331cc4d58486&lt;/a&gt;&lt;/p&gt;</comment>
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