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        <build-date>13-04-2023</build-date>
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            <title>[COMPASS-1861] Spike: Investigate hadron-document optimizations</title>
                <link>https://jira.mongodb.org/browse/COMPASS-1861</link>
                <project id="13182" key="COMPASS">Compass </project>
                    <description>&lt;p&gt;Look at the following timeline and look for to optimizations to the &quot;loadDocument&quot; section:&lt;/p&gt;

&lt;p&gt; &lt;span class=&quot;nobr&quot;&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/attachment/164301/164301_mercedes-disable-chartView-with-startup-TimelineRawData-20170830T175747.json&quot; title=&quot;mercedes-disable-chartView-with-startup-TimelineRawData-20170830T175747.json attached to COMPASS-1861&quot;&gt;mercedes-disable-chartView-with-startup-TimelineRawData-20170830T175747.json&lt;sup&gt;&lt;img class=&quot;rendericon&quot; src=&quot;https://jira.mongodb.org/images/icons/link_attachment_7.gif&quot; height=&quot;7&quot; width=&quot;7&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/sup&gt;&lt;/a&gt;&lt;/span&gt;  &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;a id=&quot;164300_thumb&quot; href=&quot;https://jira.mongodb.org/secure/attachment/164300/164300_hadron-document+spends+up+to+100ms+per+document%2C+much+of+it+waiting+for+random+bytes.png&quot; title=&quot;hadron-document spends up to 100ms per document, much of it waiting for random bytes.png&quot; file-preview-type=&quot;image&quot; file-preview-id=&quot;164300&quot; file-preview-title=&quot;hadron-document spends up to 100ms per document, much of it waiting for random bytes.png&quot;&gt;&lt;img src=&quot;https://jira.mongodb.org/secure/thumbnail/164300/_thumb_164300.png&quot; style=&quot;border: 0px solid black&quot; role=&quot;presentation&quot;/&gt;&lt;/a&gt;&lt;/span&gt; &lt;/p&gt;

&lt;p&gt;My hunch is it shouldn&apos;t take ~100ms per document rendered on screen.&lt;/p&gt;

&lt;p&gt;If no optimizations can be found then some kind of justification of the genuine reason to consume O(10^8) CPU clock cycles.&lt;/p&gt;

&lt;p&gt;Then additional workarounds like deferring the rendering could be explored, i.e. Compass renders just the first 1-2 documents, making the GUI responsive again by unblocking the JS event loop, and then in the background Compass renders the remaining 18 documents.&lt;/p&gt;</description>
                <environment></environment>
        <key id="421744">COMPASS-1861</key>
            <summary>Spike: Investigate hadron-document optimizations</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="13203">Gone away</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="peter.schmidt">Peter Schmidt</reporter>
                        <labels>
                    </labels>
                <created>Wed, 30 Aug 2017 08:28:39 +0000</created>
                <updated>Fri, 27 Oct 2023 20:19:26 +0000</updated>
                            <resolved>Mon, 1 Oct 2018 10:26:23 +0000</resolved>
                                                                    <component>CRUD</component>
                    <component>Performance</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2018840" author="durran.jordan@10gen.com" created="Mon, 1 Oct 2018 10:26:23 +0000"  >&lt;p&gt;Rewriting stories to remove hadron-document&lt;/p&gt;</comment>
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