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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-7895] Large amount of fences impact performance</title>
                <link>https://bugs.mojang.com/browse/MC-7895</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;Looking at a large amount of fences will cause your FPS to drop and GPU usage to stay high.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Steps to Reproduce:&lt;/b&gt;&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;Open the provided world &lt;span class=&quot;nobr&quot;&gt;&lt;a href=&quot;https://bugs.mojang.com/secure/attachment/595482/595482_MC_7895.zip&quot; title=&quot;MC_7895.zip attached to MC-7895&quot;&gt;MC_7895.zip&lt;sup&gt;&lt;img class=&quot;rendericon&quot; src=&quot;https://bugs.mojang.com/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;/li&gt;
	&lt;li&gt;Look in a direction where the fences are not in view&lt;/li&gt;
	&lt;li&gt;Look at the fences are in view&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;&lt;b&gt;Observed Behavior:&lt;/b&gt;&lt;br/&gt;
When you looking into the direction of the fences, your FPS will be lowered and your GPU usage will rise.&lt;br/&gt;
&lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;https://bugs.mojang.com/secure/attachment/595480/595480_2024-10-28_19.48.49.png&quot; height=&quot;200&quot; width=&quot;300&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Expected Behavior:&lt;/b&gt;&lt;br/&gt;
Your FPS does not drop and GPU usage stays low.&lt;br/&gt;
&lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;https://bugs.mojang.com/secure/attachment/595481/595481_2024-10-28_19.47.18.png&quot; height=&quot;200&quot; width=&quot;300&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="20713">MC-7895</key>
            <summary>Large amount of fences impact performance</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="4" iconUrl="https://bugs.mojang.com/images/icons/statuses/reopened.png" description="This issue was once resolved, but the resolution was deemed incorrect. From here issues are either marked assigned or resolved.">Reopened</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="Asteraoth">[Mod] Asteraoth</reporter>
                        <labels>
                    </labels>
                <created>Sat, 19 Jan 2013 14:05:59 +0100</created>
                <updated>Tue, 29 Oct 2024 23:34:12 +0100</updated>
                                            <version>Minecraft 1.4.7</version>
                    <version>Snapshot 13w03a</version>
                    <version>Minecraft 1.6.2</version>
                    <version>Minecraft 14w02c</version>
                    <version>Minecraft 1.9.2</version>
                    <version>Minecraft 1.9.3 Pre-Release 1</version>
                    <version>Minecraft 1.9.3 Pre-Release 2</version>
                    <version>Minecraft 1.9.3 Pre-Release 3</version>
                    <version>Minecraft 1.9.3</version>
                    <version>Minecraft 16w20a</version>
                    <version>Minecraft 16w21a</version>
                    <version>Minecraft 16w21b</version>
                    <version>Minecraft 1.10 Pre-Release 1</version>
                    <version>Minecraft 1.10 Pre-Release 2</version>
                    <version>Minecraft 1.10</version>
                    <version>Minecraft 1.10.2</version>
                    <version>Minecraft 16w32b</version>
                    <version>Minecraft 16w40a</version>
                    <version>Minecraft 1.11</version>
                    <version>Minecraft 17w13b</version>
                    <version>Minecraft 17w15a</version>
                    <version>Minecraft 17w45b</version>
                    <version>Minecraft 18w07a</version>
                    <version>Minecraft 18w11a</version>
                    <version>Minecraft 18w20c</version>
                    <version>Minecraft 18w22c</version>
                    <version>Minecraft 1.13-pre2</version>
                    <version>Minecraft 1.13-pre5</version>
                    <version>Minecraft 1.13-pre7</version>
                    <version>Minecraft 1.13-pre8</version>
                    <version>Minecraft 1.13</version>
                    <version>Minecraft 18w30a</version>
                    <version>Minecraft 18w30b</version>
                    <version>Minecraft 18w31a</version>
                    <version>Minecraft 18w32a</version>
                    <version>Minecraft 18w33a</version>
                    <version>Minecraft 1.13.1-pre1</version>
                    <version>Minecraft 1.13.1</version>
                    <version>Minecraft 1.13.2</version>
                    <version>Minecraft 18w43b</version>
                    <version>Minecraft 18w45a</version>
                    <version>Minecraft 18w46a</version>
                    <version>Minecraft 18w48a</version>
                    <version>Minecraft 18w48b</version>
                    <version>Minecraft 18w49a</version>
                    <version>Minecraft 19w04b</version>
                    <version>Minecraft 19w07a</version>
                    <version>Minecraft 19w12b</version>
                    <version>Minecraft 19w13b</version>
                    <version>Minecraft 19w14a</version>
                    <version>Minecraft 19w14b</version>
                    <version>Minecraft 1.14.3</version>
                    <version>1.15.2</version>
                    <version>20w12a</version>
                    <version>1.16</version>
                    <version>1.16.2</version>
                    <version>1.16.5</version>
                    <version>21w05a</version>
                    <version>1.17</version>
                    <version>1.18</version>
                    <version>1.19</version>
                    <version>1.20.6</version>
                    <version>1.21.3</version>
                                                                        <votes>43</votes>
                                    <watches>15</watches>
                                                                            <comments>
                            <comment id="1362934" author="JIRAUSER551450" created="Tue, 29 Oct 2024 23:27:22 +0100"  >&lt;p&gt;I appreciate you giving a better test environment. Note I am using java 22.0.1 instead of 21.0.3:&#160;&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;&lt;b&gt;in plain minecraft&lt;/b&gt; I get slightly less fps drop(40 to 60 which is around a 50% and in yours you shared around 85%)&lt;/li&gt;
	&lt;li&gt;with a datapack adding custom noise function &lt;b&gt;without all my customizations&lt;/b&gt; I get ~25(20 to 30) fps drop&lt;/li&gt;
	&lt;li&gt;with a datapack adding custom noise function and &lt;b&gt;with all my customizations&lt;/b&gt; I get ~0(0 to 5) fps drop&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;Let me know if any more info would be helpful.&lt;/p&gt;</comment>
                            <comment id="1362824" author="asteraoth" created="Tue, 29 Oct 2024 01:31:49 +0100"  >&lt;p&gt;&lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=Fireswamped&quot; class=&quot;user-hover&quot; rel=&quot;Fireswamped&quot;&gt;Fireswamped&lt;/a&gt; How are you trying to reproduce this? Did you open &lt;a href=&quot;https://bugs.mojang.com/secure/attachment/37750/Fence_test_world.zip&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;MC-26765&apos;s world&lt;/a&gt;? Can you try the new provided world?&lt;/p&gt;</comment>
                            <comment id="1362818" author="JIRAUSER551450" created="Mon, 28 Oct 2024 23:34:04 +0100"  >&lt;p&gt;can only consistently cause the GPU increase.&#160; Am I missing something?&lt;/p&gt;</comment>
                            <comment id="1086875" author="JIRAUSER648933" created="Sat, 9 Oct 2021 00:39:12 +0200"  >&lt;p&gt;Still cannot reproduce in 21w40a.&lt;/p&gt;</comment>
                            <comment id="1032348" author="JIRAUSER648933" created="Thu, 8 Jul 2021 18:54:41 +0200"  >&lt;p&gt;Besides causing absurd client-side lag, the memory itself is unaffected. So, I cannot reproduce in 1.17.1.&lt;/p&gt;</comment>
                            <comment id="753893" author="tpehep" created="Thu, 2 Jul 2020 17:50:51 +0200"  >&lt;p&gt;this still happens in 20w27a?&lt;/p&gt;</comment>
                            <comment id="634804" author="misoloo" created="Sun, 16 Feb 2020 00:10:58 +0100"  >&lt;p&gt;I cannot reproduce this in 20w07a. I had over 20K fences, but memory was still below 1 GB, which is not significantly higher than any normal gameplay these days.&lt;/p&gt;</comment>
                            <comment id="353160" author="cdes5" created="Sun, 8 Jan 2017 15:42:45 +0100"  >&lt;p&gt;Likely affects version 1.11.2 as &lt;a href=&quot;https://bugs.mojang.com/browse/MC-1138&quot; title=&quot;Item frames cause lag / huge FPS drops when rendered&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-1138&quot;&gt;&lt;del&gt;MC-1138&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="317029" author="mustek2" created="Fri, 24 Jun 2016 04:32:47 +0200"  >&lt;p&gt;Please &lt;b&gt;do not&lt;/b&gt; mark &lt;em&gt;unreleased versions&lt;/em&gt; as affected.&lt;br/&gt;
You don&apos;t have access to them yet.&lt;/p&gt;</comment>
                            <comment id="302617" author="JIRAUSER71590" created="Mon, 2 May 2016 10:56:04 +0200"  >&lt;p&gt;Reopened and gave report to &lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=Asteraoth&quot; class=&quot;user-hover&quot; rel=&quot;Asteraoth&quot;&gt;Asteraoth&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="302602" author="asteraoth" created="Mon, 2 May 2016 09:04:23 +0200"  >&lt;p&gt;Confirm for 1.9.3 pre-2&lt;/p&gt;</comment>
                            <comment id="295201" author="JIRAUSER71590" created="Thu, 17 Mar 2016 16:47:13 +0100"  >&lt;p&gt;No response for over a year.&lt;/p&gt;</comment>
                            <comment id="206594" author="galaxy_2alex" created="Thu, 30 Oct 2014 18:36:05 +0100"  >&lt;p&gt;Is this still a concern in the &lt;em&gt;current Minecraft version&lt;/em&gt;? If so, please &lt;em&gt;update the affected versions&lt;/em&gt; in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases. If this has been done, we can reopen the issue.&lt;/p&gt;

&lt;p&gt;Keep in mind that the &quot;Resolved&quot;-Status on this ticket just means &quot;Answered&quot;, and that we are waiting for further information on whether this issue still exists or not. We will reopen it as soon as the requested information has been deliviered.&lt;/p&gt;</comment>
                            <comment id="131646" author="jeuvke" created="Wed, 15 Jan 2014 18:04:56 +0100"  >&lt;p&gt;Conformed in 14w02c. A chunck filled with Fences quarteres my fps.&lt;/p&gt;</comment>
                            <comment id="94711" author="kumasasa" created="Sat, 27 Jul 2013 10:38:57 +0200"  >&lt;p&gt;Confirmed with 1.6.2 and the test world of &lt;a href=&quot;https://bugs.mojang.com/browse/MC-26765&quot; title=&quot;Fences cause lag spikes when interacting with blocks&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-26765&quot;&gt;&lt;del&gt;MC-26765&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="93375" author="moffkalast" created="Sun, 21 Jul 2013 09:19:32 +0200"  >&lt;p&gt;As far as i&apos;m concerned fences worked fine in 1.5.2., but in 1.6.2. they make lag spikes again with a greater magnitude &lt;del&gt;.&lt;/del&gt;&lt;/p&gt;</comment>
                            <comment id="47081" author="bljat" created="Fri, 22 Feb 2013 16:02:56 +0100"  >&lt;p&gt;You&apos;re right, issues like &lt;a href=&quot;https://bugs.mojang.com/browse/MC-5169&quot; title=&quot;Huge FPS drop in areas with a lot of signs and hanging signs&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-5169&quot;&gt;MC-5169&lt;/a&gt; and &lt;a href=&quot;https://bugs.mojang.com/browse/MC-5417&quot; title=&quot;Large amount of chests and shulker boxes creates FPS drop&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-5417&quot;&gt;MC-5417&lt;/a&gt; are most likely with tile entities, while fences don&apos;t have those, reopened.&lt;/p&gt;</comment>
                            <comment id="47073" author="tenebrae" created="Fri, 22 Feb 2013 15:37:43 +0100"  >&lt;p&gt;@&lt;span class=&quot;error&quot;&gt;&amp;#91;Mod&amp;#93;&lt;/span&gt; Tails: You sure? That issue is related to signs and the text on them, this issue is related to fences.&lt;/p&gt;</comment>
                            <comment id="38275" author="bljat" created="Sat, 19 Jan 2013 16:34:01 +0100"  >&lt;p&gt;Duplicate of &lt;a href=&quot;https://bugs.mojang.com/browse/MC-5169&quot; title=&quot;Huge FPS drop in areas with a lot of signs and hanging signs&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-5169&quot;&gt;MC-5169&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="38269" author="actionman1995" created="Sat, 19 Jan 2013 16:29:02 +0100"  >&lt;p&gt;I can assure you that my computer is powerful enough. Both YouTubers Vechs and GenerikB have done videos in the past of how fences cause lag. The images attached were rendered out of the game using chunky, they were just used as example structures.&lt;/p&gt;</comment>
                            <comment id="38240" author="miinipaa" created="Sat, 19 Jan 2013 15:47:13 +0100"  >&lt;p&gt;Cannot reproduce. Spawned a structure made of 15000 fences, run on my PC and laptop without problem. Do you use any mods (looks like you use something for realistic shadows)? If so, problem is in mod, not in vanilla Minecraft.&lt;/p&gt;</comment>
                            <comment id="38231" author="banana478" created="Sat, 19 Jan 2013 15:18:00 +0100"  >&lt;p&gt;Solution: get a more powerful computer! This isn&apos;t a bug with Minecraft, rather a technical limitation, so please resolve as invalid.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="46414">MC-26765</issuekey>
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            <issuekey id="12447">MC-1138</issuekey>
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                            </outwardlinks>
                                                                <inwardlinks description="relates to">
                                        <issuelink>
            <issuekey id="30673">MC-14983</issuekey>
        </issuelink>
                            </inwardlinks>
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                            <attachment id="595481" name="2024-10-28_19.47.18.png" size="118710" author="Asteraoth" created="Tue, 29 Oct 2024 00:56:10 +0100"/>
                            <attachment id="595480" name="2024-10-28_19.48.49.png" size="795300" author="Asteraoth" created="Tue, 29 Oct 2024 00:56:10 +0100"/>
                            <attachment id="595482" name="MC_7895.zip" size="1014750" author="Asteraoth" created="Tue, 29 Oct 2024 00:53:23 +0100"/>
                            <attachment id="19157" name="image11.png" size="1660899" author="actionman1995" created="Sat, 19 Jan 2013 14:05:59 +0100"/>
                            <attachment id="19159" name="image12.png" size="864478" author="actionman1995" created="Sat, 19 Jan 2013 14:05:59 +0100"/>
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