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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>[CSHARP-1829] Concurrency benchmark unable to utilize all available cores</title>
                <link>https://jira.mongodb.org/browse/CSHARP-1829</link>
                <project id="10041" key="CSHARP">C# Driver</project>
                    <description>&lt;p&gt;The driver doesn&apos;t perform as well as other comparable drivers in a benchmark related to overall throughput. It doesn&apos;t appear that individual operations are slower as noted by other benchmarks, but a general slowness when under a heavy load of concurrent operations over an extended period of time.&lt;/p&gt;


&lt;h3&gt;&lt;a name=&quot;Original&quot;&gt;&lt;/a&gt;Original&lt;/h3&gt;
&lt;p&gt;@MongoDB Europe16 John Page talked about the performance of all the different drivers in different languages.&lt;/p&gt;

&lt;p&gt;It was observed out the C# driver was significantly slower than it should be, since you would expect it to be in the same league as the Java driver (and it is a factor of X slower).&lt;/p&gt;

&lt;p&gt;The result was similar in .NET 4.6 and .NET Core.&lt;/p&gt;

&lt;p&gt;So I&apos;m creating this issue to help keep track of what can be done to &quot;fix&quot; this apparent problem/bug.&lt;/p&gt;</description>
                <environment></environment>
        <key id="332377">CSHARP-1829</key>
            <summary>Concurrency benchmark unable to utilize all available cores</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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="nicof">Nico Francois</reporter>
                        <labels>
                            <label>size-medium</label>
                    </labels>
                <created>Wed, 16 Nov 2016 20:05:17 +0000</created>
                <updated>Thu, 8 Jun 2023 15:56:11 +0000</updated>
                            <resolved>Thu, 8 Jun 2023 15:56:11 +0000</resolved>
                                    <version>2.3</version>
                                                    <component>Performance</component>
                                        <votes>1</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="3696520" author="john.page" created="Thu, 1 Apr 2021 15:40:57 +0000"  >&lt;p&gt;Attaching the Benchmarks I ran - comparing all the different drivers sync/async - C,Python,Java,DotNet,Golang etc.&lt;/p&gt;

&lt;p&gt;&lt;span class=&quot;nobr&quot;&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/attachment/307739/307739_drivers_benchmark.tar&quot; title=&quot;drivers_benchmark.tar attached to CSHARP-1829&quot;&gt;drivers_benchmark.tar&lt;sup&gt;&lt;img class=&quot;rendericon&quot; src=&quot;https://jira.mongodb.org/images/icons/link_attachment_7.gif&quot; height=&quot;7&quot; width=&quot;7&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/sup&gt;&lt;/a&gt;&lt;/span&gt;&lt;/p&gt;</comment>
                            <comment id="1473346" author="nicof" created="Tue, 10 Jan 2017 08:23:14 +0000"  >&lt;p&gt;Any news on this issue?&lt;/p&gt;</comment>
                            <comment id="1438829" author="john.page" created="Mon, 21 Nov 2016 09:11:11 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=craiggwilson&quot; class=&quot;user-hover&quot; rel=&quot;craiggwilson&quot;&gt;craiggwilson&lt;/a&gt; - Did I give you all the code samples you need, they are in an internal repository but I dont know if you have access.&lt;/p&gt;</comment>
                            <comment id="1435940" author="nicof" created="Wed, 16 Nov 2016 20:15:24 +0000"  >&lt;p&gt;Great to hear this!&lt;/p&gt;

&lt;p&gt;We are considering using MongoDB as the database for our new platform using .NET Core micro-services, so we&apos;d love to see this identified and fixed.&lt;/p&gt;</comment>
                            <comment id="1435936" author="craiggwilson" created="Wed, 16 Nov 2016 20:11:32 +0000"  >&lt;p&gt;Thanks Nico,&lt;/p&gt;

&lt;p&gt;We are aware of John&apos;s presentation and are working on identifying the cause and whether it&apos;s an actual issue or a setup/configuration problem.&lt;/p&gt;

&lt;p&gt;Craig&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10010">
                    <name>Duplicate</name>
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                                        <issuelink>
            <issuekey id="2361470">CSHARP-4670</issuekey>
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                            <attachment id="307739" name="drivers_benchmark.tar" size="22144000" author="john.page@mongodb.com" created="Thu, 1 Apr 2021 15:40:26 +0000"/>
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