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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>[MC-4349] Game freezes for few seconds every so often</title>
                <link>https://bugs.mojang.com/browse/MC-4349</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;In random time intervals, Minecraft takes 100% load on all cores and completely freezes for a couple of seconds. Freezes come in series, i.e. they happen more common for a few minutes and then become less frequent. &lt;/p&gt;

&lt;p&gt;They happen in Vanilla singleplayer, no idea about multi. &lt;/p&gt;

&lt;p&gt;Tested sound, checked if it is chunk saving and it seems uncorrelated to those.&lt;/p&gt;

&lt;p&gt;I would put my bet on light calculation, it may be happening during sunset/sunrise and on new chunks generation, loading and refreshing. The freezes has been happening for a few versions now (since 1.4.2 I think), so it may be connected to code light fixes.&lt;/p&gt;

&lt;p&gt;The issue seems exactly the same as &lt;a href=&quot;https://bugs.mojang.com/browse/MC-535&quot; title=&quot;Random 1-2 sec Freezes SSP New World in 1.4.2&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-535&quot;&gt;&lt;del&gt;MC-535&lt;/del&gt;&lt;/a&gt;. But that one was deemed &quot;invalid&quot; for allegedly being reported for modded Minecraft.&lt;/p&gt;</description>
                <environment>Gentoo Linux x86_64 Linux kernel version is 3.6.6-gentoo&lt;br/&gt;
Java(TM) SE Runtime Environment (build 1.6.0_37-b06)&lt;br/&gt;
&lt;br/&gt;
Graphics used for running Minecraft:&lt;br/&gt;
Intel&amp;#xAE; HD Graphics 3000&lt;br/&gt;
&lt;br/&gt;
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        <key id="16797">MC-4349</key>
            <summary>Game freezes for few seconds every so often</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="7">Invalid</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="ohjeez">Oh Jeez</reporter>
                        <labels>
                            <label>freeze</label>
                            <label>lag</label>
                            <label>linux</label>
                            <label>performance</label>
                    </labels>
                <created>Sun, 9 Dec 2012 17:34:30 +0100</created>
                <updated>Sun, 6 Sep 2015 21:33:03 +0200</updated>
                            <resolved>Sat, 16 Mar 2013 19:45:47 +0100</resolved>
                                    <version>Minecraft 1.4.5</version>
                                                                        <votes>1</votes>
                                    <watches>2</watches>
                                                                            <comments>
                            <comment id="54184" author="bljat" created="Sat, 16 Mar 2013 19:45:47 +0100"  >&lt;p&gt;No answer on querry, assuming no longer an issue.&lt;/p&gt;</comment>
                            <comment id="46657" author="bljat" created="Wed, 20 Feb 2013 00:22:59 +0100"  >&lt;p&gt;Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.&lt;/p&gt;</comment>
                            <comment id="39780" author="raxle" created="Fri, 25 Jan 2013 16:42:09 +0100"  >&lt;p&gt;Latest lwjgl binaries from developer site. Minecraft update 1.4.6-&amp;gt;1.4.7&lt;br/&gt;
And now I don&apos;t have such freezes.&lt;/p&gt;</comment>
                            <comment id="37893" author="raxle" created="Fri, 18 Jan 2013 16:40:25 +0100"  >&lt;p&gt;I also have this issue. Same symptoms (different freezeless time intervals, cpu 100%). After these freezes log message appears: &lt;/p&gt;
&lt;div class=&quot;preformatted panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;preformattedContent panelContent&quot;&gt;
&lt;pre&gt;[WARNING] Can&apos;t keep up! Did the system time change, or is the server overloaded?&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;
&lt;p&gt;No mods, single player.&lt;br/&gt;
Linux kernel 3.6.11.&lt;br/&gt;
AMD FX8120, 8Gb RAM, NVidia GTX650 (310.19 driver).&lt;/p&gt;</comment>
                            <comment id="27430" author="ohjeez" created="Sun, 9 Dec 2012 19:58:52 +0100"  >&lt;p&gt;Graphics used for running Minecraft:&lt;br/&gt;
Intel&#174; HD Graphics 3000&lt;/p&gt;

&lt;p&gt;Linux kernel version is 3.6.6&lt;/p&gt;

&lt;p&gt;&lt;del&gt;I will try running Minecraft using nvidia card, too&lt;/del&gt;&lt;/p&gt;

&lt;p&gt;&lt;ins&gt;Edit:&lt;/ins&gt;&lt;br/&gt;
Same using&lt;br/&gt;
GeForce GT 555M/PCIe/SSE2&lt;br/&gt;
driver: NVIDIA 310.19&lt;br/&gt;
by Bumblebee&lt;/p&gt;

&lt;p&gt;Also, the freeze can occur during level loading, after server startup before &quot;downloading terrain&quot; shows up.&lt;/p&gt;</comment>
                            <comment id="27426" author="cubethethird" created="Sun, 9 Dec 2012 19:47:54 +0100"  >&lt;p&gt;What kind of graphics do you have on your system, and is the driver up to date?&lt;/p&gt;</comment>
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