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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <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>[DOCS-11374] Calculation for WiredTiger cache is misleading</title>
                <link>https://jira.mongodb.org/browse/DOCS-11374</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://docs.mongodb.com/manual/faq/storage/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/manual/faq/storage/&lt;/a&gt;&lt;/p&gt;

&lt;blockquote&gt;
&lt;p&gt;50% of RAM minus 1 GB, or&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;I read this as &lt;tt&gt;(.5 * RAM) - 1GB&lt;/tt&gt;.&lt;/p&gt;

&lt;p&gt;The calculation is actually: &lt;br/&gt;
&lt;tt&gt;(RAM - 1GB) * .5&lt;/tt&gt;&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/r3.6.2/src/mongo/db/storage/wiredtiger/wiredtiger_util.cpp#L342&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/r3.6.2/src/mongo/db/storage/wiredtiger/wiredtiger_util.cpp#L342&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="503842">DOCS-11374</key>
            <summary>Calculation for WiredTiger cache is misleading</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="brian.moss@mongodb.com">Brian Moss</assignee>
                                    <reporter username="kevin.arhelger@mongodb.com">Kevin Arhelger</reporter>
                        <labels>
                    </labels>
                <created>Wed, 28 Feb 2018 23:37:52 +0000</created>
                <updated>Mon, 30 Oct 2023 22:21:57 +0000</updated>
                            <resolved>Thu, 15 Mar 2018 00:13:12 +0000</resolved>
                                    <version>3.6 Core Server</version>
                    <version>3.4.7</version>
                                    <fixVersion>Server_Docs_20231030</fixVersion>
                                    <component>dochub</component>
                    <component>manual</component>
                        <due></due>
                            <votes>1</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1834355" author="xgen-internal-githook" created="Thu, 15 Mar 2018 00:07:19 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;kallimachos@gmail.com&apos;, &apos;name&apos;: &apos;Brian Moss&apos;, &apos;username&apos;: &apos;kallimachos&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-11374&quot; title=&quot;Calculation for WiredTiger cache is misleading&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-11374&quot;&gt;&lt;del&gt;DOCS-11374&lt;/del&gt;&lt;/a&gt; Clarify WT cache calculation&lt;br/&gt;
Branch: v3.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/aa6e513a461829f710ab542635770650c7fe0c8b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/aa6e513a461829f710ab542635770650c7fe0c8b&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1834334" author="kay.kim@10gen.com" created="Wed, 14 Mar 2018 23:38:56 +0000"  >&lt;p&gt;Done and merged &lt;img class=&quot;emoticon&quot; src=&quot;https://jira.mongodb.org/images/icons/emoticons/smile.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/p&gt;</comment>
                            <comment id="1834333" author="xgen-internal-githook" created="Wed, 14 Mar 2018 23:38:53 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;kallimachos@gmail.com&apos;, &apos;name&apos;: &apos;Brian Moss&apos;, &apos;username&apos;: &apos;kallimachos&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-11374&quot; title=&quot;Calculation for WiredTiger cache is misleading&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-11374&quot;&gt;&lt;del&gt;DOCS-11374&lt;/del&gt;&lt;/a&gt; Clarify WT cache calculation&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/bbfafff376decf7333ffeb11bfdfd8ad5dea7136&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/bbfafff376decf7333ffeb11bfdfd8ad5dea7136&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1834328" author="kevin.adistambha" created="Wed, 14 Mar 2018 23:31:29 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kay.kim&quot; class=&quot;user-hover&quot; rel=&quot;kay.kim&quot;&gt;kay.kim&lt;/a&gt; this is a very small change. Could you please review the PR when you have the chance? Thanks!&lt;/p&gt;</comment>
                            <comment id="1828295" author="brian.moss" created="Fri, 9 Mar 2018 01:57:34 +0000"  >&lt;p&gt;PR: &lt;a href=&quot;https://github.com/mongodb/docs/pull/3259&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/pull/3259&lt;/a&gt;&lt;/p&gt;</comment>
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