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<item>
            <title>[SERVER-62830] [ABT] Optimize how we construct objects</title>
                <link>https://jira.mongodb.org/browse/SERVER-62830</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;As a first step, we need to do testing to compare the performance of ABT&#8217;s way of constructing objects (newObj()+setField()) vs. the SBE Stage Builder (&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62843&quot; title=&quot;Manually measure perf of how ABT constructs BSON objects&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62843&quot;&gt;&lt;del&gt;SERVER-62843&lt;/del&gt;&lt;/a&gt;).&lt;/p&gt;

&lt;p&gt;We anticipate that ABT will be notably slower, because a naive lowering of ABT&#8217;s way of constructing objects will result in a lot of intermediate objects being created at run time.&lt;/p&gt;

&lt;p&gt;Assuming this is the case, the next step will be to design and implement some analysis/optimization in &#8220;abt_lower.cpp&#8221; and &#8220;path_lower.cpp&#8221; that will optimize object construction.&lt;/p&gt;

&lt;p&gt;As part of this task, we should also look at how the ABT-&amp;gt;SBE lowering process should decide whether it&apos;s better to construct an SBE object or a BSON Object in a given context. Svilen has indicated that he would like it if there was some way that the new optimizer could optionally pass along information to help the ABT-&amp;gt;SBE lowering process decide whether it&apos;s better to construct an SBE object or BSON object (this info could possibly be passed along through a &quot;physical property&quot; on the relevant node in the ABT.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1968011">SERVER-62830</key>
            <summary>[ABT] Optimize how we construct objects</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="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-query-execution">Backlog - Query Execution</assignee>
                                    <reporter username="andrew.paroski@mongodb.com">Drew Paroski</reporter>
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                <created>Fri, 21 Jan 2022 01:50:24 +0000</created>
                <updated>Fri, 1 Sep 2023 15:25:33 +0000</updated>
                                                                                                <votes>0</votes>
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