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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-24082] Lessen impact of error handling on succesful path</title>
                <link>https://jira.mongodb.org/browse/SERVER-24082</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This involves telling the compiler (where supported) which functions are for error handlers, and moving some work (such as string creation) from the callers to the error handling functions.&lt;/p&gt;</description>
                <environment></environment>
        <key id="285122">SERVER-24082</key>
            <summary>Lessen impact of error handling on succesful path</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="9">Done</resolution>
                                        <assignee username="mathias@mongodb.com">Mathias Stearn</assignee>
                                    <reporter username="mathias@mongodb.com">Mathias Stearn</reporter>
                        <labels>
                    </labels>
                <created>Fri, 6 May 2016 18:01:37 +0000</created>
                <updated>Mon, 6 Jun 2016 21:16:21 +0000</updated>
                            <resolved>Tue, 17 May 2016 15:51:17 +0000</resolved>
                                                    <fixVersion>3.3.8</fixVersion>
                                    <component>Internal Code</component>
                    <component>Performance</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1266373" author="xgen-internal-githook" created="Tue, 17 May 2016 15:50:41 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;RedBeard0531&apos;, u&apos;name&apos;: u&apos;Mathias Stearn&apos;, u&apos;email&apos;: u&apos;mathias@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-24082&quot; title=&quot;Lessen impact of error handling on succesful path&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-24082&quot;&gt;&lt;del&gt;SERVER-24082&lt;/del&gt;&lt;/a&gt; Never allocate an ErrorInfo for OK Statuses&lt;/p&gt;

&lt;p&gt;This makes the isOK() check cheaper.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/0992359125430701cb2f7432ac4782b69d983407&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/0992359125430701cb2f7432ac4782b69d983407&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1260124" author="xgen-internal-githook" created="Mon, 9 May 2016 22:59:27 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;RedBeard0531&apos;, u&apos;name&apos;: u&apos;Mathias Stearn&apos;, u&apos;email&apos;: u&apos;mathias@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-24082&quot; title=&quot;Lessen impact of error handling on succesful path&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-24082&quot;&gt;&lt;del&gt;SERVER-24082&lt;/del&gt;&lt;/a&gt; Move std::string construction into Status constructor&lt;/p&gt;

&lt;p&gt;Previously it was done at every call site that used string literals.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/26586d84484c16f3d5aa7ab4cad87552e4b8bc5f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/26586d84484c16f3d5aa7ab4cad87552e4b8bc5f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1260123" author="xgen-internal-githook" created="Mon, 9 May 2016 22:59:26 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;RedBeard0531&apos;, u&apos;name&apos;: u&apos;Mathias Stearn&apos;, u&apos;email&apos;: u&apos;mathias@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-24082&quot; title=&quot;Lessen impact of error handling on succesful path&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-24082&quot;&gt;&lt;del&gt;SERVER-24082&lt;/del&gt;&lt;/a&gt; Hint the compiler that error functions are cold&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/fb439046f73ce10b862750df853746c41e9e2e81&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/fb439046f73ce10b862750df853746c41e9e2e81&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1260122" author="xgen-internal-githook" created="Mon, 9 May 2016 22:59:25 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;RedBeard0531&apos;, u&apos;name&apos;: u&apos;Mathias Stearn&apos;, u&apos;email&apos;: u&apos;mathias@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-24082&quot; title=&quot;Lessen impact of error handling on succesful path&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-24082&quot;&gt;&lt;del&gt;SERVER-24082&lt;/del&gt;&lt;/a&gt; Implement uassertStatusOK and friends in terms of more basic asserts&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/47e3245fa23e778376a4a3492ebaba471a29417f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/47e3245fa23e778376a4a3492ebaba471a29417f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1260121" author="xgen-internal-githook" created="Mon, 9 May 2016 22:59:24 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;RedBeard0531&apos;, u&apos;name&apos;: u&apos;Mathias Stearn&apos;, u&apos;email&apos;: u&apos;mathias@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-24082&quot; title=&quot;Lessen impact of error handling on succesful path&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-24082&quot;&gt;&lt;del&gt;SERVER-24082&lt;/del&gt;&lt;/a&gt; Make it easier for compiler to out-of-line error cases&lt;/p&gt;

&lt;p&gt;This has the direct impact of moving the error message building code out of&lt;br/&gt;
line and possibly shrinking the stack size of functions. It also has the&lt;br/&gt;
indirect benefit of making it easier to inline the condition checking portions&lt;br/&gt;
of functions that uassert.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/7e7605bcb7eed745a9dd3602806258fa57aedc96&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/7e7605bcb7eed745a9dd3602806258fa57aedc96&lt;/a&gt;&lt;/p&gt;</comment>
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