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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-12258] Repeated $push to end of an array is slower in 2.5 than in 2.4.8</title>
                <link>https://jira.mongodb.org/browse/SERVER-12258</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The relevant test case here is from &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-10595&quot; title=&quot;Replicating many array operations is excessively slow&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-10595&quot;&gt;&lt;del&gt;SERVER-10595&lt;/del&gt;&lt;/a&gt;, which was filed to deal with replication lag when incrementally pushing 10k elements to an array. While that issue appears to be resolved in 2.5, it was noticed that the total time taken to $push the elements in 2.5 has grown by about 20%.&lt;/p&gt;</description>
                <environment></environment>
        <key id="104662">SERVER-12258</key>
            <summary>Repeated $push to end of an array is slower in 2.5 than in 2.4.8</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="backlog-server-query">Backlog - Query Team</assignee>
                                    <reporter username="andrew.morrow@mongodb.com">Andrew Morrow</reporter>
                        <labels>
                    </labels>
                <created>Mon, 6 Jan 2014 15:17:16 +0000</created>
                <updated>Tue, 6 Dec 2022 05:13:31 +0000</updated>
                            <resolved>Fri, 20 Apr 2018 14:47:46 +0000</resolved>
                                                                    <component>Performance</component>
                                        <votes>0</votes>
                                    <watches>7</watches>
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            <issuekey id="130131">SERVER-13521</issuekey>
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                            <customfieldvalue>&lt;p&gt;Run push.py from &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-10595&quot; title=&quot;Replicating many array operations is excessively slow&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-10595&quot;&gt;&lt;del&gt;SERVER-10595&lt;/del&gt;&lt;/a&gt; against both 2.4.8 and 2.5.4. Notice that while the replication lag issue from &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-10595&quot; title=&quot;Replicating many array operations is excessively slow&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-10595&quot;&gt;&lt;del&gt;SERVER-10595&lt;/del&gt;&lt;/a&gt; has gone away, the time to push the 10k elements has grown by about 20%.&lt;/p&gt;</customfieldvalue>

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