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    <title>Mojang Studios Jira</title>
    <link>https://bugs.mojang.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en</language>    <build-info>
        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
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<item>
            <title>[BDS-3664] Linux server software not appearing to use all cores</title>
                <link>https://bugs.mojang.com/browse/BDS-3664</link>
                <project id="11700" key="BDS">Bedrock Dedicated Server</project>
                    <description>&lt;p&gt;I run a server on a linux ubuntu server and from what I can tell, it doesn&apos;t appear to be using the majority of what the server hardware is capable of. Ram I would expect it to not use much as it isn&apos;t java, but cpu power it just kind of maxes out two threads and just kind of does nothing else. People on the server experience lag at around 5 people which is weird. I have 2 six-core xeon cpus clocked at 2.66hz, but its running as if I had 1 cpu with 1 core at 2.66hz. I assume multi threading hasn&apos;t been added but I don&apos;t know much about how this is developed. Something I did notice is that in the list of /bedrock_server processes shown in htop, some of them are using more then the two cores but that doesn&apos;t seem to be represented in how the server is running. Attached is a picture of this&lt;/p&gt;</description>
                <environment>Ubuntu 19.1 server&lt;br/&gt;
BDS linux 1.14.32.1</environment>
        <key id="297132">BDS-3664</key>
            <summary>Linux server software not appearing to use all cores</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="5" iconUrl="https://bugs.mojang.com/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="SacriPudding">evan lee</reporter>
                        <labels>
                            <label>lag</label>
                    </labels>
                <created>Fri, 20 Mar 2020 20:25:50 +0100</created>
                <updated>Mon, 30 Mar 2020 14:00:36 +0200</updated>
                            <resolved>Mon, 30 Mar 2020 14:00:36 +0200</resolved>
                                    <version>1.14.32.1</version>
                                                            <votes>0</votes>
                                    <watches>3</watches>
                                                                            <comments>
                            <comment id="655955" author="ionicecko" created="Mon, 30 Mar 2020 03:07:07 +0200"  >&lt;p&gt;Just to give a little more context to my duplicating this ticket into &lt;a href=&quot;https://bugs.mojang.com/browse/BDS-2574&quot; title=&quot;1.14+ Linux Performance Degradation&quot; class=&quot;issue-link&quot; data-issue-key=&quot;BDS-2574&quot;&gt;&lt;del&gt;BDS-2574&lt;/del&gt;&lt;/a&gt;...&lt;/p&gt;

&lt;p&gt;At the moment there appears to be issues with Linux performance since at least 1.14 (although there are reports from prior to that).&lt;/p&gt;

&lt;p&gt;In your case, please note, the CPU you&apos;re using isn&apos;t ideal. While Bedrock Dedicated Server is multi-threaded in some scenarios, the main game thread is still single core sensitive. Your CPU&apos;s single core score is &lt;em&gt;very&lt;/em&gt; average because its designed for server based, multi-core workloads.&lt;/p&gt;

&lt;p&gt;However, you should be able to have 5 people online I would have thought without issue so I believe you&apos;re being affected by the current Linux performance issues and have duplicated into that to collate as much info as possible.&lt;/p&gt;

&lt;p&gt;If you have any more info you think should be added to the summary in that report please let me know.&lt;/p&gt;

&lt;p&gt;Ionic&lt;/p&gt;</comment>
                            <comment id="655953" author="ionicecko" created="Mon, 30 Mar 2020 03:04:01 +0200"  >&lt;p&gt;&lt;b&gt;Thank you for your report!&lt;/b&gt;&lt;br/&gt;
We&apos;re actually already tracking this issue under &lt;b&gt;&lt;a href=&quot;https://bugs.mojang.com/browse/BDS-2574&quot; title=&quot;1.14+ Linux Performance Degradation&quot; class=&quot;issue-link&quot; data-issue-key=&quot;BDS-2574&quot;&gt;&lt;del&gt;BDS-2574&lt;/del&gt;&lt;/a&gt;&lt;/b&gt;.&lt;/p&gt;

&lt;p&gt;If you would like to add a vote and any extra information to the main ticket it would be appreciated.&lt;/p&gt;

&lt;p&gt;If you haven&apos;t already, you might like to make use of the &lt;a href=&quot;https://bugs.mojang.com/issues/?jql=project=BDS&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;&lt;b&gt;&lt;ins&gt;search feature&lt;/ins&gt;&lt;/b&gt;&lt;/a&gt; to see if the issue has already been mentioned.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Quick Links&lt;/b&gt;:&lt;br/&gt;
&#128211; &lt;a href=&quot;https://bugs.mojang.com/projects/BDS/summary&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;Issue Guidelines&lt;/a&gt; &amp;#8211; &#128172; &lt;a href=&quot;https://minecrafthopper.net/help/technical-support-resources/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Community Support&lt;/a&gt; &amp;#8211; &#128231; &lt;a href=&quot;https://help.minecraft.net/hc/en-us/requests/new&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Customer Support&lt;/a&gt; &amp;#8211; &#128214; &lt;a href=&quot;https://minecraft.gamepedia.com/Bedrock_Dedicated_Server&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;BDS Wiki&lt;/a&gt; &amp;#8211; &#128214; &lt;a href=&quot;https://help.minecraft.net/hc/en-us/articles/360035131651-Dedicated-Servers-for-Minecraft-on-Bedrock-&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;FAQs&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
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                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                            <outwardlinks description="duplicates">
                                        <issuelink>
            <issuekey id="281773">BDS-2574</issuekey>
        </issuelink>
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                <attachments>
                            <attachment id="275032" name="Screenshot from 2020-03-20 14-20-16.png" size="171745" author="SacriPudding" created="Fri, 20 Mar 2020 20:25:36 +0100"/>
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