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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-18481] Fix tcmalloc patch to be upstream-able</title>
                <link>https://jira.mongodb.org/browse/SERVER-18481</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description></description>
                <environment></environment>
        <key id="204321">SERVER-18481</key>
            <summary>Fix tcmalloc patch to be upstream-able</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="9">Done</resolution>
                                        <assignee username="martin.bligh">Martin Bligh</assignee>
                                    <reporter username="martin.bligh">Martin Bligh</reporter>
                        <labels>
                            <label>FT</label>
                    </labels>
                <created>Thu, 14 May 2015 20:18:10 +0000</created>
                <updated>Sat, 19 Sep 2015 00:03:29 +0000</updated>
                            <resolved>Mon, 8 Jun 2015 14:46:06 +0000</resolved>
                                                    <fixVersion>3.1.4</fixVersion>
                                    <component>Internal Code</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="921890" author="xgen-internal-githook" created="Fri, 22 May 2015 17:54:54 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;kaloianm&apos;, u&apos;name&apos;: u&apos;Kaloian Manassiev&apos;, u&apos;email&apos;: u&apos;kaloian.manassiev@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-18481&quot; title=&quot;Fix tcmalloc patch to be upstream-able&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-18481&quot;&gt;&lt;del&gt;SERVER-18481&lt;/del&gt;&lt;/a&gt; Fix compile break&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/15191a46c7bb3568312671e8f108d2c8cdf11186&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/15191a46c7bb3568312671e8f108d2c8cdf11186&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="921831" author="xgen-internal-githook" created="Fri, 22 May 2015 17:17:19 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;martinbligh&apos;, u&apos;name&apos;: u&apos;Martin Bligh&apos;, u&apos;email&apos;: u&apos;mbligh@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-18481&quot; title=&quot;Fix tcmalloc patch to be upstream-able&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-18481&quot;&gt;&lt;del&gt;SERVER-18481&lt;/del&gt;&lt;/a&gt;: Update tcmalloc to free in more friendly way&lt;/p&gt;

&lt;p&gt;Main changes here are:&lt;br/&gt;
1. Free the contents of the cache but don&apos;t tear down control structures&lt;br/&gt;
2. Use dynamic sizing for when a thread frees memory, not magic constants&lt;br/&gt;
3. Remove the global lock&lt;br/&gt;
4. Try to make the tcmalloc change acceptable for upstream&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/14d466b62bc89412fcc20778c43bbb174713c080&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/14d466b62bc89412fcc20778c43bbb174713c080&lt;/a&gt;&lt;/p&gt;</comment>
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