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    <title>MongoDB Jira</title>
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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-21436] Build a TaskExecutor that uses the NetworkInterfaceASIO worker thread for all work</title>
                <link>https://jira.mongodb.org/browse/SERVER-21436</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;By building an executor that runs all its callbacks in the network worker thread, we can achieve a notable speedup in sharded find operations. This project is to either build a new executor or adapt the ThreadPoolExecutor to do its work on the network thread instead.&lt;/p&gt;</description>
                <environment></environment>
        <key id="239129">SERVER-21436</key>
            <summary>Build a TaskExecutor that uses the NetworkInterfaceASIO worker thread for all work</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="9">Done</resolution>
                                        <assignee username="mira.carey@mongodb.com">Mira Carey</assignee>
                                    <reporter username="schwerin@mongodb.com">Andy Schwerin</reporter>
                        <labels>
                    </labels>
                <created>Thu, 12 Nov 2015 19:52:24 +0000</created>
                <updated>Wed, 25 Nov 2015 00:27:06 +0000</updated>
                            <resolved>Tue, 17 Nov 2015 21:13:31 +0000</resolved>
                                                    <fixVersion>3.2.0-rc4</fixVersion>
                                    <component>Internal Code</component>
                                        <votes>0</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="1094779" author="xgen-internal-githook" created="Fri, 20 Nov 2015 22:02:16 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;hanumantmk&apos;, u&apos;name&apos;: u&apos;Jason Carey&apos;, u&apos;email&apos;: u&apos;jcarey@argv.me&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-21436&quot; title=&quot;Build a TaskExecutor that uses the NetworkInterfaceASIO worker thread for all work&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-21436&quot;&gt;&lt;del&gt;SERVER-21436&lt;/del&gt;&lt;/a&gt; NetworkInterfaceThreadPool for sharding&lt;/p&gt;

&lt;p&gt;Adding a new kind of thread pool that dispatches jobs onto a provided&lt;br/&gt;
NetworkInterface rather than using their own thread pool.&lt;/p&gt;

&lt;p&gt;We&apos;re also switching the ThreadPoolTaskExecutor to use this instead of&lt;br/&gt;
the regular thread pool for sharding.  That, in turn, removes context&lt;br/&gt;
switches by allowing inline execution of scheduled tasks if they&apos;re&lt;br/&gt;
invoked from a nia io_worker.&lt;/p&gt;

&lt;p&gt;In pursuit of this, factored the connection pool tests out into a common&lt;br/&gt;
set that the NetworkInterfaceThreadPool can use.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/4990cd5647371b59fec9578e19f35af13b3a97ca&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/4990cd5647371b59fec9578e19f35af13b3a97ca&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="231248">SERVER-20596</issuekey>
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