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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-8049] Very short timeout for select() call in net listener eats up CPU time</title>
                <link>https://jira.mongodb.org/browse/SERVER-8049</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The select() call at src/mongo/util/net/listen.cpp:218 is made with a timeout of 10ms, which is unnecessarily small, and, on one of my machines, results in a constant CPU consumption of &amp;gt;1% when mongod is sitting idle.&lt;/p&gt;

&lt;p&gt;Eliminate the timeout altogether: just pass NULL and let select() block until something happens. The timeout specified here is unnecessary, as a timeout simply results in select() being called again.&lt;/p&gt;</description>
                <environment>Linux</environment>
        <key id="60569">SERVER-8049</key>
            <summary>Very short timeout for select() call in net listener eats up CPU time</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="jcalvinowens">Calvin Owens</reporter>
                        <labels>
                            <label>performance</label>
                    </labels>
                <created>Sat, 29 Dec 2012 18:05:44 +0000</created>
                <updated>Tue, 22 Jan 2013 19:12:56 +0000</updated>
                            <resolved>Sun, 30 Dec 2012 03:12:37 +0000</resolved>
                                    <version>1.9.2</version>
                    <version>2.0.8</version>
                    <version>2.1.2</version>
                    <version>2.2.2</version>
                    <version>2.3.1</version>
                                                    <component>Internal Code</component>
                    <component>Networking</component>
                    <component>Performance</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="227020" author="eliot" created="Sun, 30 Dec 2012 03:23:08 +0000"  >&lt;p&gt;No problem.&lt;/p&gt;</comment>
                            <comment id="227018" author="jcalvinowens" created="Sun, 30 Dec 2012 03:21:22 +0000"  >&lt;p&gt;Sorry for the noise&lt;/p&gt;</comment>
                            <comment id="227014" author="eliot" created="Sun, 30 Dec 2012 03:13:19 +0000"  >&lt;p&gt;The timeout loop has multiple purposes, so its not trivial to remove.&lt;/p&gt;</comment>
                            <comment id="227013" author="eliot" created="Sun, 30 Dec 2012 03:12:37 +0000"  >&lt;p&gt;See &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-2114&quot; title=&quot;Don&amp;#39;t use select timeouts for fast coarse timing&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-2114&quot;&gt;&lt;del&gt;SERVER-2114&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
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