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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-65725] Mutex stats counters can use relaxed mode atomics</title>
                <link>https://jira.mongodb.org/browse/SERVER-65725</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The various updates of &quot;counts()&quot; in platform/mutex.cpp use fetchAndAdd, which I believe uses the default sequential memory ordering.  These can use fetchAndAddRelaxed.&lt;/p&gt;

&lt;p&gt;Additionally the state.isFinalized check can use acquire/release semantics rather than sequential, though I think our AtomicWord class doesn&apos;t support that&lt;/p&gt;</description>
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        <key id="2027134">SERVER-65725</key>
            <summary>Mutex stats counters can use relaxed mode atomics</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="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-servicearch">Backlog - Service Architecture</assignee>
                                    <reporter username="matthew.russotto@mongodb.com">Matthew Russotto</reporter>
                        <labels>
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                <created>Mon, 18 Apr 2022 16:29:22 +0000</created>
                <updated>Tue, 6 Dec 2022 00:13:22 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4491743" author="billy.donahue" created="Tue, 19 Apr 2022 17:14:51 +0000"  >&lt;p&gt;I think those AtomicWord data members should also get their own cache lines to avoid false sharing. I also don&apos;t think the implementation of a Mutex class should be limited to only using the AtomicWord wrapper. It&apos;s low-level enough that the full capabilities of stdx::mutex should be available to its implementation if needed.&lt;/p&gt;</comment>
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