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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-40710] Look into using intel ISA-L library</title>
                <link>https://jira.mongodb.org/browse/SERVER-40710</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://github.com/01org/isa-l&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/01org/isa-l&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;It has optimized implementations of crc and zlib-compatable compression and decompression. It seems to offer about 5x faster compression with a similar compression ratio. &lt;/p&gt;</description>
                <environment></environment>
        <key id="741125">SERVER-40710</key>
            <summary>Look into using intel ISA-L library</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-servicearch">Backlog - Service Architecture</assignee>
                                    <reporter username="mathias@mongodb.com">Mathias Stearn</reporter>
                        <labels>
                    </labels>
                <created>Thu, 18 Apr 2019 15:44:05 +0000</created>
                <updated>Mon, 28 Aug 2023 15:42:06 +0000</updated>
                                                                            <component>Internal Code</component>
                    <component>Performance</component>
                                        <votes>0</votes>
                                    <watches>10</watches>
                                                                                                                <comments>
                            <comment id="2243176" author="gbtucker" created="Fri, 10 May 2019 21:12:33 +0000"  >&lt;p&gt;For the igzip cli tool we just chose a multi-MB io buffer for convenience.&#160; There shouldn&apos;t be a performance issue with choosing a smaller buffer to reduce memory footprint if that&apos;s what you need.&lt;/p&gt;

&lt;p&gt;If you have any questions about the ISA-L API or usage please let me know.&lt;/p&gt;</comment>
                            <comment id="2232777" author="geert.bosch" created="Thu, 2 May 2019 20:26:57 +0000"  >&lt;p&gt;I did testing on a 5-year-old AMD Opteron(tm) Processor 6344 at 2.6 MHz. I compiled &lt;tt&gt;igzip&lt;/tt&gt; with our v3 toolchain.&lt;br/&gt;
Results are good. The table below list user times, best out of 3 runs. System times were small and comparable between both compressors, but noisy, so omitted.&lt;/p&gt;

&lt;p&gt;The data sets are the statically linked &lt;tt&gt;mongod&lt;/tt&gt; executable including debug info (1.2G), tarred up &lt;tt&gt;mongo-src.tar&lt;/tt&gt; server sources (286M) and tarred up Enron dataset in BSON format (378M). The one notable downsize of &lt;tt&gt;igzip&lt;/tt&gt; is larger memory footprint, though I don&apos;t think this is an issue.&lt;/p&gt;
&lt;div class=&apos;table-wrap&apos;&gt;
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&lt;th class=&apos;confluenceTh&apos;&gt;file &lt;/th&gt;
&lt;th class=&apos;confluenceTh&apos;&gt; gzip -1 time (s)&lt;/th&gt;
&lt;th class=&apos;confluenceTh&apos;&gt;gzip -1 ratio&lt;/th&gt;
&lt;th class=&apos;confluenceTh&apos;&gt;gzip max rss &lt;/th&gt;
&lt;th class=&apos;confluenceTh&apos;&gt; igzip time(s) &lt;/th&gt;
&lt;th class=&apos;confluenceTh&apos;&gt; igzip ratio&lt;/th&gt;
&lt;th class=&apos;confluenceTh&apos;&gt; igzip max rss &lt;/th&gt;
&lt;/tr&gt;
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&lt;td class=&apos;confluenceTd&apos;&gt; &lt;tt&gt;mongod&lt;/tt&gt; &lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt; 15.93 &lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt; 6.75 &lt;/td&gt;
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&lt;td class=&apos;confluenceTd&apos;&gt; 3.95 &lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt; 6.96 &lt;/td&gt;
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&lt;td class=&apos;confluenceTd&apos;&gt; &lt;tt&gt;mongo-src.tar&lt;/tt&gt; &lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;  5.14 &lt;/td&gt;
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&lt;td class=&apos;confluenceTd&apos;&gt; &lt;tt&gt;messages.bson&lt;/tt&gt; &lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt; 8.50 &lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt; 3.00 &lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt; 1696 &lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt; 2.54 &lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt; 3.14 &lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt; 3496 &lt;/td&gt;
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&lt;/tbody&gt;&lt;/table&gt;
&lt;/div&gt;
</comment>
                            <comment id="2218094" author="keith.bostic" created="Thu, 18 Apr 2019 17:07:48 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=redbeard0531&quot; class=&quot;user-hover&quot; rel=&quot;redbeard0531&quot;&gt;redbeard0531&lt;/a&gt;, do you know if the library is known to work on AMD hardware?&lt;/p&gt;</comment>
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