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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-5026] Fast, thread-safe counters for statistics.</title>
                <link>https://jira.mongodb.org/browse/SERVER-5026</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;For performance measurement, we should have a system of counters that are not lossy, and whose writes do not impact performance (i.e., increase cache misses or lock contention).&lt;/p&gt;</description>
                <environment></environment>
        <key id="31123">SERVER-5026</key>
            <summary>Fast, thread-safe counters for statistics.</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="13200">Declined</resolution>
                                        <assignee username="vojislav.stojkovic@mongodb.com">Vojislav Stojkovic</assignee>
                                    <reporter username="schwerin@mongodb.com">Andy Schwerin</reporter>
                        <labels>
                    </labels>
                <created>Tue, 21 Feb 2012 17:25:08 +0000</created>
                <updated>Fri, 25 Aug 2023 13:29:31 +0000</updated>
                            <resolved>Tue, 19 Apr 2022 17:23:20 +0000</resolved>
                                                                    <component>Concurrency</component>
                    <component>Performance</component>
                                        <votes>1</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="4262672" author="JIRAUSER1262719" created="Tue, 21 Dec 2021 21:32:17 +0000"  >&lt;p&gt;We haven&#8217;t heard back from you in at least 1 year, so I&apos;m going to close this ticket. If this is still an issue for you, please provide additional information and we will reopen the ticket.&lt;/p&gt;</comment>
                            <comment id="1213981" author="kyle.suarez" created="Thu, 24 Mar 2016 16:27:34 +0000"  >&lt;p&gt;I&apos;m assuming we&apos;re talking about operation counters like the OpCounters? If so, it would be nice if the counters were 64-bit integers, which would then kill &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-14364&quot; title=&quot;OpCounters values should be stored/exported as 64-bit integers&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-14364&quot;&gt;&lt;del&gt;SERVER-14364&lt;/del&gt;&lt;/a&gt; with one stone.&lt;/p&gt;

&lt;p&gt;Another related issue that affects the current OpCounters is that all of the counters fit on the same cache line, which could lead to contention. (This is just a &quot;what-if&quot; and should be something we keep in mind when doing performance tests.)&lt;/p&gt;</comment>
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