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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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            <title>[SERVER-16736] support more than 1 checkpoint thread for WiredTiger</title>
                <link>https://jira.mongodb.org/browse/SERVER-16736</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Discussion started in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16665&quot; title=&quot;WiredTiger b-tree uses too much space in journal directory&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16665&quot;&gt;&lt;del&gt;SERVER-16665&lt;/del&gt;&lt;/a&gt;. WT supports multiple eviction threads but uses only 1 checkpoint thread. Both eviction and checkpoint threads can do compression when compression is used for a collection/index so more threads for checkpoint is likely to reduce write stalls during slow checkpoints. The wt_perf.c benchmark client uses more than 1 checkpoint thread, so I assume that is supported for WT. &lt;/p&gt;</description>
                <environment></environment>
        <key id="177183">SERVER-16736</key>
            <summary>support more than 1 checkpoint thread for WiredTiger</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="backlog-server-storage-engines">Backlog - Storage Engines Team</assignee>
                                    <reporter username="mdcallag">Mark Callaghan</reporter>
                        <labels>
                            <label>wiredtiger</label>
                    </labels>
                <created>Tue, 6 Jan 2015 16:33:16 +0000</created>
                <updated>Wed, 3 May 2023 01:35:56 +0000</updated>
                            <resolved>Wed, 3 May 2023 01:35:56 +0000</resolved>
                                                                    <component>Storage</component>
                    <component>WiredTiger</component>
                                        <votes>3</votes>
                                    <watches>17</watches>
                                                                                                                <comments>
                            <comment id="934114" author="dan@10gen.com" created="Mon, 8 Jun 2015 16:52:49 +0000"  >&lt;p&gt;We hope this will be addressed by bounding the work we do in a checkpoint.  See &lt;a href=&quot;https://jira.mongodb.org/browse/WT-1744&quot; title=&quot;Throttle inserts when the cache has lots of dirty content&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-1744&quot;&gt;&lt;del&gt;WT-1744&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="798202" author="mdcallag" created="Tue, 6 Jan 2015 16:55:29 +0000"  >&lt;p&gt;And if checkpoint cannot be multi-threaded it should still benefit from helper threads to do compression and call pwrite concurrent with other work done by the main checkpoint thread.&lt;/p&gt;</comment>
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