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        <build-number>940014</build-number>
        <build-date>05-12-2023</build-date>
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<item>
            <title>[LU-11804] Auto tune cpu parttions for high IOPS workload</title>
                <link>https://jira.whamcloud.com/browse/LU-11804</link>
                <project id="10000" key="LU">Lustre</project>
                    <description>&lt;p&gt;There are number of IOPS related performance impromvenss in Lustre-2.12 that are not only server side, but also client side. Attached resutls is 4K random read IOPS on single client.&lt;br/&gt;
There is 40% performance improvmtns with default client setting in lustre-2.12, but after tune incresing of cpu partitions, IOPS bumps up a lot.&lt;br/&gt;
This is great improvements, but I am still wondering if we should have auto tuning of cpu partition on such high IOPS workload with out of the box.&lt;/p&gt;</description>
                <environment></environment>
        <key id="54339">LU-11804</key>
            <summary>Auto tune cpu parttions for high IOPS workload</summary>
                <type id="4" iconUrl="https://jira.whamcloud.com/secure/viewavatar?size=xsmall&amp;avatarId=11310&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="4" iconUrl="https://jira.whamcloud.com/images/icons/priorities/minor.svg">Minor</priority>
                        <status id="1" iconUrl="https://jira.whamcloud.com/images/icons/statuses/open.png" description="The issue is open and ready for the assignee to start work on it.">Open</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="wc-triage">WC Triage</assignee>
                                    <reporter username="sihara">Shuichi Ihara</reporter>
                        <labels>
                    </labels>
                <created>Tue, 18 Dec 2018 07:40:41 +0000</created>
                <updated>Tue, 18 Dec 2018 19:04:32 +0000</updated>
                                                                                <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                            <comments>
                            <comment id="238778" author="adilger" created="Tue, 18 Dec 2018 19:04:32 +0000"  >&lt;p&gt;Is the increased performance only due to increasing the number of &lt;tt&gt;ptlrpcd&lt;/tt&gt; threads, to handle more concurrent RPC sending/checksums?  &lt;/p&gt;</comment>
                    </comments>
                    <attachments>
                            <attachment id="31669" name="SingleClient-4K-RandomIOPS.png" size="134267" author="sihara" created="Tue, 18 Dec 2018 07:39:24 +0000"/>
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