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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-44401] Speed up validateBSON</title>
                <link>https://jira.mongodb.org/browse/SERVER-44401</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The work to speed up validation led to improvements in the speed of iterating over BSON. Similar changes are applicable to &lt;tt&gt;validateBSON&lt;/tt&gt;. Early results indicate a 2x speedup for this method is possible.&lt;/p&gt;</description>
                <environment></environment>
        <key id="989276">SERVER-44401</key>
            <summary>Speed up validateBSON</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="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="geert.bosch@mongodb.com">Geert Bosch</assignee>
                                    <reporter username="geert.bosch@mongodb.com">Geert Bosch</reporter>
                        <labels>
                    </labels>
                <created>Mon, 4 Nov 2019 20:20:23 +0000</created>
                <updated>Sun, 29 Oct 2023 22:15:24 +0000</updated>
                            <resolved>Tue, 18 Aug 2020 00:16:41 +0000</resolved>
                                                    <fixVersion>4.7.0</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="3343598" author="xgen-internal-githook" created="Mon, 17 Aug 2020 23:04:29 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Geert Bosch&apos;, &apos;email&apos;: &apos;geert@mongodb.com&apos;, &apos;username&apos;: &apos;GeertBosch&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-44401&quot; title=&quot;Speed up validateBSON&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-44401&quot;&gt;&lt;del&gt;SERVER-44401&lt;/del&gt;&lt;/a&gt; Fix CodeWScope edge cases in new BSONValidate&lt;/p&gt;

&lt;p&gt;Pushing the special CodeWScope frame wouldn&apos;t update the _currElem, leading&lt;br/&gt;
nested documents and arrays to incorrectly assume they&apos;d need special handling&lt;br/&gt;
as well.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/4397b05e2e78cd4eb5a1b598a4f73058027436aa&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/4397b05e2e78cd4eb5a1b598a4f73058027436aa&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3340486" author="xgen-internal-githook" created="Fri, 14 Aug 2020 20:08:09 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Geert Bosch&apos;, &apos;email&apos;: &apos;geert@mongodb.com&apos;, &apos;username&apos;: &apos;GeertBosch&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-44401&quot; title=&quot;Speed up validateBSON&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-44401&quot;&gt;&lt;del&gt;SERVER-44401&lt;/del&gt;&lt;/a&gt; Optimize validateBSON&lt;/p&gt;

&lt;p&gt;This reinstates commit bf1f6cdc20e2e5122dd2749f93e45244ec1eaf2e with an additional fix to avoid&lt;br/&gt;
post-decrementing an iterator pointing at begin(), solving failures on Windows Debug builds.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/cead094547872319d084810ee3d9fbd19a6beeb1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/cead094547872319d084810ee3d9fbd19a6beeb1&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3338829" author="xgen-internal-githook" created="Fri, 14 Aug 2020 03:19:43 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Wlodarek&apos;, &apos;email&apos;: &apos;gregory.wlodarek@mongodb.com&apos;, &apos;username&apos;: &apos;GWlodarek&apos;}
&lt;p&gt;Message: Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-44401&quot; title=&quot;Speed up validateBSON&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-44401&quot;&gt;&lt;del&gt;SERVER-44401&lt;/del&gt;&lt;/a&gt; Optimize validateBSON&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit bf1f6cdc20e2e5122dd2749f93e45244ec1eaf2e.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/01cdb5943fe82be6972d6601d1c8e645e223ed3a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/01cdb5943fe82be6972d6601d1c8e645e223ed3a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3338550" author="xgen-internal-githook" created="Thu, 13 Aug 2020 23:04:56 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Geert Bosch&apos;, &apos;email&apos;: &apos;geert@mongodb.com&apos;, &apos;username&apos;: &apos;GeertBosch&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-44401&quot; title=&quot;Speed up validateBSON&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-44401&quot;&gt;&lt;del&gt;SERVER-44401&lt;/del&gt;&lt;/a&gt; Optimize validateBSON&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/bf1f6cdc20e2e5122dd2749f93e45244ec1eaf2e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/bf1f6cdc20e2e5122dd2749f93e45244ec1eaf2e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3338549" author="xgen-internal-githook" created="Thu, 13 Aug 2020 23:04:54 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Geert Bosch&apos;, &apos;email&apos;: &apos;geert@mongodb.com&apos;, &apos;username&apos;: &apos;GeertBosch&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-44401&quot; title=&quot;Speed up validateBSON&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-44401&quot;&gt;&lt;del&gt;SERVER-44401&lt;/del&gt;&lt;/a&gt; Add validate_BSON benchmark&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8899de4dedcb5b44d952d84e307a7bc385fb2cfe&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8899de4dedcb5b44d952d84e307a7bc385fb2cfe&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="973129">SERVER-44102</issuekey>
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