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    <title>MongoDB Jira</title>
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    <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>[GODRIVER-1693] Reduce Allocations</title>
                <link>https://jira.mongodb.org/browse/GODRIVER-1693</link>
                <project id="14289" key="GODRIVER">Go Driver</project>
                    <description>&lt;p&gt;Reduce memory allocations under common scenarios.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1412948">GODRIVER-1693</key>
            <summary>Reduce Allocations</summary>
                <type id="11" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14707&amp;avatarType=issuetype">Epic</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="qingyang.hu@mongodb.com">Qingyang Hu</assignee>
                                    <reporter username="esha.bhargava@mongodb.com">Esha Bhargava</reporter>
                        <labels>
                    </labels>
                <created>Thu, 16 Jul 2020 23:30:38 +0000</created>
                <updated>Sat, 28 Oct 2023 11:38:05 +0000</updated>
                            <resolved>Sun, 18 Sep 2022 12:51:23 +0000</resolved>
                                                    <fixVersion>1.6.0</fixVersion>
                    <fixVersion>1.10.0</fixVersion>
                    <fixVersion>1.11.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                        <attachments>
                            <attachment id="318490" name="mem-100.3.1-baseline.prof" size="3965" author="kevin.albertson@mongodb.com" created="Wed, 2 Jun 2021 20:44:24 +0000"/>
                            <attachment id="318489" name="mem-100.3.1-p3.prof" size="3597" author="kevin.albertson@mongodb.com" created="Wed, 2 Jun 2021 20:44:24 +0000"/>
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                            <customfieldvalue>&lt;p&gt;Engineer(s): Qingyang&lt;/p&gt;

&lt;p&gt;Summary: Reduce memory allocations under common scenarios&lt;/p&gt;

&lt;p&gt;2022-09-04: Updating target date to 2022-09-09&lt;/p&gt;

&lt;p&gt;Status update:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Memory pool for reads and writes in review.&lt;/li&gt;
	&lt;li&gt;Remaining tickets are not directly related and will be deferred.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Rationale for delays:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Memory pool review took longer than expected.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Risks:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;No risks.&lt;/li&gt;
&lt;/ul&gt;


&lt;hr /&gt;

&lt;p&gt;2022-08-22: Updating target date to 2022-09-02&lt;/p&gt;

&lt;p&gt;Status update:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Prototyping streaming approach found minimal improvement.&lt;/li&gt;
	&lt;li&gt;Scope to refactor has been closed.&lt;/li&gt;
	&lt;li&gt;Working on pooling approach. Expected to have review this week.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Rationale for delays:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Investigation of prototype took longer than expected.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Risks:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;No risk.&lt;/li&gt;
&lt;/ul&gt;


&lt;hr /&gt;

&lt;p&gt;2022-08-08: Setting target date to 2022-08-26&lt;/p&gt;

&lt;p&gt;Status update:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Fixed excess memory consumption from Zstd compression.&lt;/li&gt;
	&lt;li&gt;Working on a scope document to propose using io.Reader and io.Writer for readWireMessage and writeWireMessage. This is testing streaming an memory pooling with benchmarks.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Rationale for delays:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;No delays.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Risks:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;No risks.&lt;/li&gt;
&lt;/ul&gt;


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