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    <description>This file is an XML representation of an issue</description>
    <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-58960] Measure the overhead from ShardingWriteRouter on the write codepath</title>
                <link>https://jira.mongodb.org/browse/SERVER-58960</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This test should be written as a google/benchmark test (see &lt;a href=&quot;https://github.com/mongodb/mongo/wiki/Write-Benchmark-Tests&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this wiki page&lt;/a&gt; and &lt;a href=&quot;https://github.com/mongodb/mongo/blob/bb7140efdf8547dea758c2cf1f9c7b6278c5ab43/src/mongo/s/chunk_manager_refresh_bm.cpp&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;chunk&amp;#95;manager&amp;#95;refresh&amp;#95;bm.cpp&lt;/a&gt; as an example).&lt;/p&gt;

&lt;p&gt;Outside of the &lt;p/&gt;
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&lt;p/&gt; loop, the benchmark should construct a CatalogCache that will return a ChunkManager for the temporary resharding collection which has 60 chunks (&lt;a href=&quot;https://github.com/mongodb/genny/blob/8d400f385a971002300d8376f87575ead6432b97/src/workloads/sharding/ReshardCollectionMixed.yml#L33&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;to match the number of chunks in ReshardCollectionMixed.yml&lt;/a&gt;). It&apos;ll additionally need to call CollectionShardingRuntime::setFilteringMetadata() for the source collection with a CollectionMetadata that has reshardingFields present and in a state such that getReshardingKeyIfShouldForwardOps() would return the new shard key pattern.&lt;/p&gt;

&lt;p&gt;Within the &lt;p/&gt;
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&lt;p/&gt; loop, the benchmark should construct a ReshardingDonorWriteRouter instance and call ReshardingDonorWriteRouter::getDestinedRecipient() for a fixed document. The document should be constructed outside of the loop so that the BSONObjBuilder for it isn&apos;t counted in the benchmark.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1836239">SERVER-58960</key>
            <summary>Measure the overhead from ShardingWriteRouter on the write codepath</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="13201">Fixed</resolution>
                                        <assignee username="luis.osta@mongodb.com">Luis Osta</assignee>
                                    <reporter username="max.hirschhorn@mongodb.com">Max Hirschhorn</reporter>
                        <labels>
                            <label>PM-234-T-perf</label>
                    </labels>
                <created>Fri, 30 Jul 2021 01:55:49 +0000</created>
                <updated>Sun, 29 Oct 2023 21:50:09 +0000</updated>
                            <resolved>Thu, 30 Sep 2021 18:49:33 +0000</resolved>
                                                    <fixVersion>5.0.4</fixVersion>
                    <fixVersion>5.1.0-rc0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="4161428" author="xgen-internal-githook" created="Mon, 1 Nov 2021 18:53:37 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Luis Osta&apos;, &apos;email&apos;: &apos;luis.osta@mongodb.com&apos;, &apos;username&apos;: &apos;LuisOsta&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-58960&quot; title=&quot;Measure the overhead from ShardingWriteRouter on the write codepath&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-58960&quot;&gt;&lt;del&gt;SERVER-58960&lt;/del&gt;&lt;/a&gt; Add benchmarks to measure the overhead from ShardingWriteRouter on the write codepath&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f9c31646ad3281410ec757222fffdf80867e0bea&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f9c31646ad3281410ec757222fffdf80867e0bea&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4107085" author="JIRAUSER1259052" created="Wed, 6 Oct 2021 18:17:05 +0000"  >&lt;p&gt;Updating the fixversion since branching activities occurred yesterday. This ticket will be in rc0 when it&#8217;s been triggered. For more active release information, please keep an eye on #server-release. Thank you!&lt;/p&gt;</comment>
                            <comment id="4094960" author="xgen-internal-githook" created="Thu, 30 Sep 2021 18:34:25 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Luis Osta&apos;, &apos;email&apos;: &apos;luis.osta@mongodb.com&apos;, &apos;username&apos;: &apos;LuisOsta&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-58960&quot; title=&quot;Measure the overhead from ShardingWriteRouter on the write codepath&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-58960&quot;&gt;&lt;del&gt;SERVER-58960&lt;/del&gt;&lt;/a&gt; Add benchmarks to measure the overhead from ShardingWriteRouter on the write codepath&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/88dc3b889025bdd39405f42eb1e53d759d061786&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/88dc3b889025bdd39405f42eb1e53d759d061786&lt;/a&gt;&lt;/p&gt;</comment>
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