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    <title>MongoDB Jira</title>
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    <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-74267] Run YCSB with catalog shard mode</title>
                <link>https://jira.mongodb.org/browse/SERVER-74267</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description></description>
                <environment></environment>
        <key id="2272209">SERVER-74267</key>
            <summary>Run YCSB with catalog shard mode</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="wenqin.ye@mongodb.com">Wenqin Ye</assignee>
                                    <reporter username="kshitij.gupta@mongodb.com">Kshitij Gupta</reporter>
                        <labels>
                    </labels>
                <created>Wed, 22 Feb 2023 15:50:27 +0000</created>
                <updated>Wed, 7 Jun 2023 15:40:43 +0000</updated>
                            <resolved>Wed, 7 Jun 2023 15:39:48 +0000</resolved>
                                                                                        <votes>0</votes>
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                                                                                                                <comments>
                            <comment id="5481579" author="JIRAUSER1253401" created="Wed, 7 Jun 2023 15:35:04 +0000"  >&lt;p&gt;The YCSB workload we used to do this performance test starts with 56 million documents (around 1kb each) and runs YCSB (with 20 million operations) 4 separate times with the following read/write percentages:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;95% read, 5% write&lt;/li&gt;
	&lt;li&gt;50% read, 50% write&lt;/li&gt;
	&lt;li&gt;100% read&lt;/li&gt;
	&lt;li&gt;100% update&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;The averaged results from three runs of the YCSB workload with config shard were compared to the averaged results from three runs of the YCSB workload without config shard. Also note that when when running YCSB with config shard, we improved the hardware of the config server to match that of a regular shard server.&lt;/p&gt;

&lt;p&gt;The results can be found in this spreadsheet: &lt;a href=&quot;https://docs.google.com/spreadsheets/d/1CmtkEm9AQ_BZMFDmUfM0gB1FdihLgp_2Trj1XXFk6L8/edit#gid=1698181027&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.google.com/spreadsheets/d/1CmtkEm9AQ_BZMFDmUfM0gB1FdihLgp_2Trj1XXFk6L8/edit#gid=1698181027&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Overall, there were no statistically significant performance regressions.&lt;/b&gt; All performance regressions were within one or two standard deviations of 0% performance regressions. This suggests that the &#8220;performance regressions&#8221; observed are likely due to random noise inherent to performance tests and not actual performance differences between YCSB with config shard and YCSB without config shard.&lt;/p&gt;</comment>
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