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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-8598] Extreme lag/game freeze on snapshot with HD texturepack</title>
                <link>https://bugs.mojang.com/browse/MC-8598</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;It seems snapshot 13w04a has a performance issue with HD texturepacks when Minecraft 1.4 didn&apos;t have any on same computer (but Minecraft 1.4 had more glitches and less features than 13w04a of course).&lt;/p&gt;

&lt;p&gt;What happens is (in order):&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;Smooth framerate during ~30 seconds&lt;/li&gt;
	&lt;li&gt;Horribly laggy framerate during ~20 seconds (impossible to play)&lt;/li&gt;
	&lt;li&gt;Smooth framerate during ~30 seconds&lt;/li&gt;
	&lt;li&gt;etc...&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;The problem happens with a 128x up-to-date texturepack (optimized for 13w04a). However, the problem also happens with default texturepack but is less noticeable (it&apos;s just like a lag spikes).&lt;/p&gt;

&lt;p&gt;The game doesn&apos;t crash so there is no crash-report.&lt;/p&gt;

&lt;p&gt;Note:&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;My LWJGL library is up-to-date.&lt;/li&gt;
	&lt;li&gt;My computer (a dual-core one) has a good hardware and is able to run MassEffect3 without any problem.&lt;/li&gt;
	&lt;li&gt;The problem is less noticeable (or shorter) when using a lower resolution of texturepack&lt;/li&gt;
	&lt;li&gt;When the problem happens ingame, it also still happens in the main menu before stopping&lt;/li&gt;
	&lt;li&gt;During the problem, one core is at 100% but the other is iddle.&lt;/li&gt;
	&lt;li&gt;Can be related to &lt;a href=&quot;https://bugs.mojang.com/browse/MC-4349&quot; title=&quot;Game freezes for few seconds every so often&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-4349&quot;&gt;&lt;del&gt;MC-4349&lt;/del&gt;&lt;/a&gt;, &lt;a href=&quot;https://bugs.mojang.com/browse/MC-2098&quot; title=&quot;Minecraft Freezes at menu&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-2098&quot;&gt;&lt;del&gt;MC-2098&lt;/del&gt;&lt;/a&gt;, &lt;a href=&quot;https://bugs.mojang.com/browse/MC-1514&quot; title=&quot;Extreme lag/game freeze around lighting glitches&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-1514&quot;&gt;&lt;del&gt;MC-1514&lt;/del&gt;&lt;/a&gt;, &lt;a href=&quot;https://bugs.mojang.com/browse/MC-3130&quot; title=&quot;Lag Spikes on computers with good specs.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-3130&quot;&gt;&lt;del&gt;MC-3130&lt;/del&gt;&lt;/a&gt;, &lt;a href=&quot;https://bugs.mojang.com/browse/MC-8304&quot; title=&quot;Lag Spikes / FPS Drops&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-8304&quot;&gt;&lt;del&gt;MC-8304&lt;/del&gt;&lt;/a&gt;, &lt;a href=&quot;https://bugs.mojang.com/browse/MC-2176&quot; title=&quot;FPS is VERY unreliable in singleplayer&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-2176&quot;&gt;&lt;del&gt;MC-2176&lt;/del&gt;&lt;/a&gt; and &lt;a href=&quot;https://bugs.mojang.com/browse/MC-2434&quot; title=&quot;Huge lag spike renders game unplayable&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-2434&quot;&gt;&lt;del&gt;MC-2434&lt;/del&gt;&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment>Windows7 x64, Java7 64-bit</environment>
        <key id="21551">MC-8598</key>
            <summary>Extreme lag/game freeze on snapshot with HD texturepack</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="sphax">Sphax</reporter>
                        <labels>
                            <label>FPS</label>
                            <label>freeze</label>
                            <label>lag</label>
                            <label>performance</label>
                    </labels>
                <created>Mon, 28 Jan 2013 15:51:50 +0100</created>
                <updated>Mon, 7 Sep 2015 20:14:36 +0200</updated>
                            <resolved>Mon, 18 Mar 2013 01:09:45 +0100</resolved>
                                    <version>Snapshot 13w04a</version>
                                                                        <votes>2</votes>
                                    <watches>1</watches>
                                                                            <comments>
                            <comment id="54804" author="bljat" created="Mon, 18 Mar 2013 01:09:48 +0100"  >&lt;p&gt;This ticket has been marked as a duplicate of &lt;a href=&quot;https://bugs.mojang.com/browse/MC-11875&quot; title=&quot;1.5 HD Textures: Very poor performance with 32x packs and up.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-11875&quot;&gt;&lt;del&gt;MC-11875&lt;/del&gt;&lt;/a&gt;, in favor of the better description/information provided.&lt;/p&gt;</comment>
                            <comment id="40676" author="sphax" created="Mon, 28 Jan 2013 16:16:42 +0100"  >&lt;p&gt;OK&lt;/p&gt;</comment>
                            <comment id="40665" author="grygrflzr" created="Mon, 28 Jan 2013 15:53:10 +0100"  >&lt;p&gt;Snapshots are not Minecraft 1.5, please do not title them as such.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                            <outwardlinks description="duplicates">
                                        <issuelink>
            <issuekey id="26588">MC-11875</issuekey>
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