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    <title>MongoDB Jira</title>
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    <description>This file is an XML representation of an issue</description>
    <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-11951] Report lock yield time (micros) with yield counts</title>
                <link>https://jira.mongodb.org/browse/SERVER-11951</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently we report &quot;numYields&quot; or &quot;yields&quot; in various places but we don&apos;t report the time spent yielding.&lt;/p&gt;

&lt;p&gt;I see this mostly surfacing in lockstats, like those reported via profiling and logging:&lt;/p&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;   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;// Log entry&lt;/span&gt;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 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;20... query test.jstests_orm query: {} ... numYields:1 locks(micros) r:282288 y:101 nreturned:0 reslen:20 141ms&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="101108">SERVER-11951</key>
            <summary>Report lock yield time (micros) with yield counts</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="scotthernandez">Scott Hernandez</reporter>
                        <labels>
                    </labels>
                <created>Wed, 4 Dec 2013 18:31:05 +0000</created>
                <updated>Tue, 6 Dec 2022 05:14:16 +0000</updated>
                            <resolved>Mon, 29 Feb 2016 21:40:45 +0000</resolved>
                                                                    <component>Concurrency</component>
                    <component>Diagnostics</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1188340" author="scotthernandez" created="Mon, 29 Feb 2016 21:53:16 +0000"  >&lt;p&gt;Is all time yielding spent waiting for locks?&lt;/p&gt;</comment>
                            <comment id="1188318" author="martin.bligh" created="Mon, 29 Feb 2016 21:40:30 +0000"  >&lt;p&gt;Not convinced this makes sense as it&apos;s difficult to separate time involuntarily vs co-operatively pre-empted.&lt;br/&gt;
Plan is to measure elapsed wall time and time spent waiting for locks. &lt;/p&gt;</comment>
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