# UE 4.12 P1 release looks terribly **URL:** \ **Category:** Programming & Scripting\ **Tags:** unreal-engine\ **Created:** [April 29, 2016, 9:46am UTC](https://forums.unrealengine.com/t/ue-4-12-p1-release-looks-terribly/355868 "2016-04-29T09:46:24Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![anonymous\_user\_590cb5931](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_590cb5931](https://forums.unrealengine.com/u/anonymous_user_590cb5931)\ **Post date:** [April 29, 2016, 9:46am UTC](https://forums.unrealengine.com/t/ue-4-12-p1-release-looks-terribly/355868/1 "2016-04-29T09:46:24Z")
Hello. What’s happened with UE in 4.12 release? If I started both 4.12 release and 4.12 and - Whoa! - there is huge difference: ![88847-1.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/0/6/d/06d7cefb38a36715c83d9e6c2a1da84d4dc28c0b.png) ![88848-2.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/4/0/240a13beaa2576596fa7b831db9cbb0c97cb8f74.png) Why UE 4.12 used so much CPU on start? It just very simple form with Project, not a huge project! Why??? ((( ---
**Author:** ![S-ed](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/s-ed/32/1194558_2.png) [@S-ed](https://forums.unrealengine.com/u/S-ed)\ **Post date:** [April 29, 2016, 12:03pm UTC](https://forums.unrealengine.com/t/ue-4-12-p1-release-looks-terribly/355868/2 "2016-04-29T12:03:22Z")
Agree, CPU load is much higher (30% vs 1.5%). But it loads up faster. ---
**Author:** ![S-ed](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/s-ed/32/1194558_2.png) [@S-ed](https://forums.unrealengine.com/u/S-ed)\ **Post date:** [April 29, 2016, 12:19pm UTC](https://forums.unrealengine.com/t/ue-4-12-p1-release-looks-terribly/355868/3 "2016-04-29T12:19:49Z")
![88872-screenshot_1461932057.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/6/b/b/6bb8a0eed3685c870113ccfd6dfd5ff6cea03cc2.png) ---
**Author:** ![anonymous\_user\_590cb5931](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_590cb5931](https://forums.unrealengine.com/u/anonymous_user_590cb5931)\ **Post date:** [April 29, 2016, 12:23pm UTC](https://forums.unrealengine.com/t/ue-4-12-p1-release-looks-terribly/355868/4 "2016-04-29T12:23:59Z")
Yeah, faster. But high CPU, that wasted, is interfere such operations, like Shaders Compiling. And, imagine, if it loads faster with wasted CPU usage, how it could faster load with correct CPU usage! ---
**Author:** ![gmpreussner\_1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@gmpreussner\_1](https://forums.unrealengine.com/u/gmpreussner_1)\ **Post date:** [April 29, 2016, 6:11pm UTC](https://forums.unrealengine.com/t/ue-4-12-p1-release-looks-terribly/355868/5 "2016-04-29T18:11:19Z")
Sorry, this was a bug that I introduced by accident. It should be fixed with this [GitHub commit](https://github.com/EpicGames/UnrealEngine/commit/142978d6a451b6fc343e68f6b5f28c8e9b00cef2). ---
**Author:** ![anonymous\_user\_590cb5931](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_590cb5931](https://forums.unrealengine.com/u/anonymous_user_590cb5931)\ **Post date:** [April 29, 2016, 10:13pm UTC](https://forums.unrealengine.com/t/ue-4-12-p1-release-looks-terribly/355868/6 "2016-04-29T22:13:48Z")
Can I ask you to merge changes from [https://github.com/EpicGames/UnrealEngine/commit/142978d6a451b6fc343e68f6b5f28c8e9b00cef2](https://github.com/EpicGames/UnrealEngine/commit/142978d6a451b6fc343e68f6b5f28c8e9b00cef2) to the UE 4.12 branch - [https://github.com/EpicGames/UnrealEngine/commits/4.12](https://github.com/EpicGames/UnrealEngine/commits/4.12) ? ---
**Author:** ![anonymous\_user\_590cb5931](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_590cb5931](https://forums.unrealengine.com/u/anonymous_user_590cb5931)\ **Post date:** [April 29, 2016, 10:14pm UTC](https://forums.unrealengine.com/t/ue-4-12-p1-release-looks-terribly/355868/7 "2016-04-29T22:14:27Z")
Thank you very much for very fast fix! Can I ask you to merge changes from [https://github.com/EpicGames/UnrealEngine/commit/142978d6a451b6fc343e68f6b5f28c8e9b00cef2](https://github.com/EpicGames/UnrealEngine/commit/142978d6a451b6fc343e68f6b5f28c8e9b00cef2) to the UE 4.12 branch - [https://github.com/EpicGames/UnrealEngine/commits/4.12](https://github.com/EpicGames/UnrealEngine/commits/4.12) ? ---
**Author:** ![gmpreussner\_1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@gmpreussner\_1](https://forums.unrealengine.com/u/gmpreussner_1)\ **Post date:** [April 29, 2016, 10:19pm UTC](https://forums.unrealengine.com/t/ue-4-12-p1-release-looks-terribly/355868/8 "2016-04-29T22:19:59Z")
It’s already in our 4.12 branch locally. Should get pushed up with the next preview release. ---
**Author:** ![anonymous\_user\_590cb5931](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_590cb5931](https://forums.unrealengine.com/u/anonymous_user_590cb5931)\ **Post date:** [April 29, 2016, 10:48pm UTC](https://forums.unrealengine.com/t/ue-4-12-p1-release-looks-terribly/355868/9 "2016-04-29T22:48:50Z")
Thank you very much. I just found it - [https://github.com/EpicGames/UnrealEngine/commit/a9a45d7f67b47dd08d5e96ae450c6983c5157602](https://github.com/EpicGames/UnrealEngine/commit/a9a45d7f67b47dd08d5e96ae450c6983c5157602) … It’s means, that I tried to compile UE 4.12 more that three days ago.