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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>[SERVER-3546] profiler: track time in disk io</title>
                <link>https://jira.mongodb.org/browse/SERVER-3546</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Track time doing actual disk io&lt;/p&gt;</description>
                <environment></environment>
        <key id="20688">SERVER-3546</key>
            <summary>profiler: track time in disk io</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</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="4">Incomplete</resolution>
                                        <assignee username="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="kgorman">Kenny Gorman</reporter>
                        <labels>
                            <label>rn</label>
                    </labels>
                <created>Mon, 8 Aug 2011 16:23:42 +0000</created>
                <updated>Tue, 6 Dec 2022 05:41:45 +0000</updated>
                            <resolved>Fri, 6 Oct 2017 19:20:54 +0000</resolved>
                                                                    <component>Diagnostics</component>
                                        <votes>6</votes>
                                    <watches>9</watches>
                                                                                                                <comments>
                            <comment id="1691851" author="milkie" created="Fri, 6 Oct 2017 19:20:54 +0000"  >&lt;p&gt;As specified, this ticket cannot be implemented, as it&apos;s not possible to ascribe individual disk I/O operations to a particular read or write statement.&lt;/p&gt;</comment>
                            <comment id="131014" author="eliot" created="Tue, 12 Jun 2012 14:08:53 +0000"  >&lt;p&gt;There is a lot more stuff tracked after &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4628&quot; title=&quot;good lock state reporting with the more granular locking&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4628&quot;&gt;&lt;del&gt;SERVER-4628&lt;/del&gt;&lt;/a&gt;.&lt;br/&gt;
See list there.&lt;/p&gt;</comment>
                            <comment id="124970" author="eliot" created="Thu, 31 May 2012 22:07:30 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4328&quot; title=&quot;db level locking&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4328&quot;&gt;&lt;del&gt;SERVER-4328&lt;/del&gt;&lt;/a&gt; will cover a lot of this&lt;/p&gt;</comment>
                            <comment id="83888" author="eliot" created="Wed, 1 Feb 2012 02:07:13 +0000"  >&lt;p&gt;Not sure how accurate i/o time can be.&lt;br/&gt;
Can at least do something&lt;/p&gt;</comment>
                            <comment id="83857" author="kgorman" created="Tue, 31 Jan 2012 23:50:59 +0000"  >&lt;p&gt;The most useful stats would be:&lt;/p&gt;

&lt;p&gt;I/O time.  How long did this statement take for I/O time.  The &apos;fetch&apos; portion of the query for instance.&lt;br/&gt;
Lock time.  How long did this statement wait due to waiting for locks.&lt;/p&gt;

&lt;p&gt;Maybe the output was like:&lt;/p&gt;

&lt;p/&gt;
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&lt;p/&gt;</comment>
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            <issuekey id="13131">SERVER-1815</issuekey>
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