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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>
    </build-info>


<item>
            <title>[MC-239] The Nether still lags quite a bit</title>
                <link>https://bugs.mojang.com/browse/MC-239</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;The Nether still lags quite a bit.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;What I expected to happen was...:&lt;/b&gt;&lt;/p&gt;

&lt;p&gt;I thought that when I went to the Nether, it wouldn&apos;t lag anymore.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;What actually happened was...:&lt;/b&gt;&lt;/p&gt;

&lt;p&gt;I went to the Nether and it lagged.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Steps to Reproduce:&lt;/b&gt;&lt;br/&gt;
1. Build a Nether Portal&lt;br/&gt;
2. Go through it&lt;br/&gt;
3. There is a lag&lt;/p&gt;</description>
                <environment>Windows 7</environment>
        <key id="11492">MC-239</key>
            <summary>The Nether still lags quite a bit</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="5">Cannot Reproduce</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="doublen1">Dustin Chase Frankel</reporter>
                        <labels>
                            <label>lag</label>
                    </labels>
                <created>Thu, 25 Oct 2012 00:14:24 +0200</created>
                <updated>Sun, 6 Sep 2015 19:28:39 +0200</updated>
                            <resolved>Fri, 4 Apr 2014 15:16:37 +0200</resolved>
                                    <version>Minecraft 1.4.2</version>
                    <version>Minecraft 1.4.6</version>
                    <version>Minecraft 1.4.7</version>
                    <version>Snapshot 13w01b</version>
                    <version>Minecraft 1.7.4</version>
                                                                        <votes>17</votes>
                                    <watches>5</watches>
                                                                            <comments>
                            <comment id="221156" author="marcono1234" created="Fri, 6 Mar 2015 18:05:42 +0100"  >&lt;p&gt;At least the high amount of chunk updates could be an indicator for a bug&lt;/p&gt;</comment>
                            <comment id="221104" author="kingsupernova" created="Fri, 6 Mar 2015 06:52:34 +0100"  >&lt;p&gt;@Marcono1234&lt;/p&gt;

&lt;p&gt;General lag isn&apos;t really a bug per se, there is just a limit to what your computer can handle. This report is about complete freezes.&lt;/p&gt;</comment>
                            <comment id="207233" author="marcono1234" created="Fri, 31 Oct 2014 21:18:47 +0100"  >&lt;p&gt;Can maybe reproduce and explain for &lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;&lt;b&gt;1.8.1-pre3&lt;/b&gt; &lt;em&gt;I don&apos;t know if this is right, but with render distance of 12 and flying in creative mode and sprinting (ctrl), I get in the overworld a maximum of 450 chunk updates, but in the nether I get chunk updates up to even nearly 600, both in unloaded chunks (see screenshots), so I assume there is something going wrong in the nether&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="149865" author="ezekielelin" created="Fri, 4 Apr 2014 15:16:37 +0200"  >&lt;p&gt;Cannot reproduce in 14w11b&lt;/p&gt;</comment>
                            <comment id="136085" author="galaxy_2alex" created="Wed, 29 Jan 2014 13:35:36 +0100"  >&lt;p&gt;Reopened due to &lt;a href=&quot;https://bugs.mojang.com/browse/MC-46262&quot; title=&quot;Huge fps drop/Screen freeze in nether.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-46262&quot;&gt;&lt;del&gt;MC-46262&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="37379" author="pokecanada" created="Thu, 17 Jan 2013 16:10:15 +0100"  >&lt;p&gt;Unless you generate the chunks in the Nether, it will lag every 15 blocks. That&apos;s due to the massive over hangs. Dinnerbone said he is working on something to fix that and improve the FPS. And the Nether also lags because Java has to render 10,000 (Sometimes more) blocks every 5 seconds. That&apos;s why it lags.&lt;/p&gt;</comment>
                            <comment id="37368" author="elood@web.de" created="Thu, 17 Jan 2013 15:22:14 +0100"  >&lt;p&gt;move 15ish blocks, 1 second~ freeze, move another 15ish blocks, another 1 second freeze.. and so on, really annoying..&lt;br/&gt;
Can&apos;t stand to do anything that involves the nether&lt;/p&gt;</comment>
                            <comment id="37051" author="geminicrafterman" created="Tue, 15 Jan 2013 23:18:12 +0100"  >&lt;p&gt;still happens&lt;/p&gt;


</comment>
                            <comment id="37050" author="geminicrafterman" created="Tue, 15 Jan 2013 23:17:07 +0100"  >&lt;p&gt;umm. well.... I tried today,nether STILL lags&lt;/p&gt;</comment>
                            <comment id="13539" author="mattheyy" created="Thu, 25 Oct 2012 22:18:28 +0200"  >&lt;p&gt;@EvilSeph&lt;br/&gt;
Presuming you know this already but FYI:&lt;/p&gt;

&lt;p&gt;This issue is caused by an excessive amount of client-side lighting updates due to the amount of light-sources (lava) present in the nether. These updates (one per tick) are causing massive client-side lag during recalculation of lighting. This lag appears as spikes in frame-rate/render time.&lt;br/&gt;
There are several client-side mods available that resolve this issue while still keeping the full functionality. If you could look into these and provide a solution that would be awesome. &lt;img class=&quot;emoticon&quot; src=&quot;https://bugs.mojang.com/images/icons/emoticons/smile.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/p&gt;</comment>
                            <comment id="12661" author="doublen1" created="Thu, 25 Oct 2012 00:31:52 +0200"  >&lt;p&gt;Please fix this.  It is a major inconvenience.  Thank-you.&lt;/p&gt;</comment>
                            <comment id="12645" author="evilseph" created="Thu, 25 Oct 2012 00:26:07 +0200"  >&lt;p&gt;@voi1452 please be respectful towards others or you&apos;ll not be permitted to use this issue tracker anymore.&lt;/p&gt;

&lt;p&gt;@doublen1 please try and provide more (correct) information and keep it to one bug per report, thanks!&lt;/p&gt;</comment>
                            <comment id="12634" author="cbt" created="Thu, 25 Oct 2012 00:21:06 +0200"  >&lt;p&gt;No text in the body.  Two bugs listed in the subject.  Not the best bug report I&apos;ve seen.&lt;/p&gt;

&lt;p&gt;Edit: looks like the bug report was edited after I made my comment.  Looks better now.&lt;/p&gt;</comment>
                            <comment id="12620" author="void1452" created="Thu, 25 Oct 2012 00:16:02 +0200"  >&lt;p&gt;Lag in the Nether is normal, since there are a lot of elements that need to be loaded. The level of noise is just you being &lt;b&gt;DUMB&lt;/b&gt;. There is something called &lt;b&gt;VOLUME&lt;/b&gt; that can turn the sound &lt;b&gt;UP or DOWN&lt;/b&gt;!&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="19503">MC-6732</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="20229">MC-7438</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="21364">MC-8439</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="22195">MC-8879</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="22547">MC-9085</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="23207">MC-9579</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="37988">MC-19310</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="71858">MC-46262</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="73134">MC-47473</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="73663">MC-47991</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="12002">MC-724</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="16031">MC-3847</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="16415">MC-4087</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                    </issuelinks>
                <attachments>
                            <attachment id="85153" name="Nether chunk updates (1.8.1-pre3).png" size="1001895" author="marcono1234" created="Fri, 31 Oct 2014 21:20:25 +0100"/>
                            <attachment id="85154" name="Overworld chunk updates (1.8.1-pre3).png" size="1150611" author="marcono1234" created="Fri, 31 Oct 2014 21:20:25 +0100"/>
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