x

Search in
Sort by:

Question Status:

Search help

  • Simple searches use one or more words. Separate the words with spaces (cat dog) to search cat,dog or both. Separate the words with plus signs (cat +dog) to search for items that may contain cat but must contain dog.
  • You can further refine your search on the search results page, where you can search by keywords, author, topic. These can be combined with each other. Examples
    • cat dog --matches anything with cat,dog or both
    • cat +dog --searches for cat +dog where dog is a mandatory term
    • cat -dog -- searches for cat excluding any result containing dog
    • [cats] —will restrict your search to results with topic named "cats"
    • [cats] [dogs] —will restrict your search to results with both topics, "cats", and "dogs"

Office Holiday

Epic Games' offices will be on holiday from June 22nd to July 7th. During this period support will be limited. Our offices will reopen on Monday, July 8th. 

Mutex causes non bottleneck performance problem in unreal engine 4

I noticed that unreal engine lags or become sluggish when there are a lot of objects in the scene, in low end pcs this maybe explainable but not for mid to high end ones.

Try to open Infiltrator demo, yhea its pretty demanding scene, however I noticed that the slugishness was not caused by strugling SSD, CPU or GPU, not even bandwidth! I confirmed this by checking system monitor and Nvidia gpu checking tool, nothing is getting past beyond 30%, not even on a per core basis!

Clearly, there must be something unusuall happening in the engine, its not that unreal engine is hardware demanding but there might be a programming problem that affects all dev platform!

I think mutexes and for-loops in UE4 are causing the problem, I have seen several program with the same issues and improving those parts fixed it!

Solving this would really become a huge boost to UE4, cause game dev could do more and enables them to create much much better games due to improved performance. The cinematography industry could also take this as a huge advantage.

Product Version: UE 4.17
Tags:
more ▼

asked Oct 09 '17 at 07:55 PM in Everything Else

avatar image

James Guana
36 3 9

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

0 answers: sort voted first
Be the first one to answer this question
toggle preview:

Up to 5 attachments (including images) can be used with a maximum of 5.2 MB each and 5.2 MB total.

Follow this question

Once you sign in you will be able to subscribe for any updates here

Answers to this question