[Darklyric]

Hey i noticed this the other day and was scratching my head because i couldn't find any other draw through task manager. I used ezvid to record but cant upload right now due to youtube being down. Normal usage was like 60-80% on 6 threads(cores) on my 8350 but now its 50-70% on 8 thread:drool:. Any ideas are welcome as to why its doing this and the video is coming as soon as youtube is back up(in read mode only right now for some reason).

Edit ezvid added about 10%-20% cpu usage on all 8 it looks like but it was doing that before. The only thing that changed was a driver update to 13.8.1 awhile back.

Youtube is running c2d servers i guess

Embedded vid isn't working hmm http://www.youtube.com/watch?v=c2hQK3qdzBY&feature=youtu.be

 

[Takla]

Battlefield 3 uses 6 Threads. If it would use 8, the usage would be over 95%.

 

[Blameless]

Quote:

Originally Posted by Takla

Battlefield 3 uses 6 Threads. If it would use 8, the usage would be over 95%.

Actually making use of 8+ logical CPUs requires at least that many threads, but this does not mean that every thread is always, or frequently taking advantage of all the cycles given it. Indeed this is a rare scenario.

There is almost always some sort of bottleneck that keeps a thread from 100% utilization, often this is simply waiting for other threads.

I don't know exactly how many threads of any significant CPU utilization BF3 can spawn, but even if it is one, or more, per logical CPU, the CPU being pegged at 100% utilization would be extremely rare.

 

[Darklyric]

Ok my point being is that its supposed to 6....its using 8...according to tm and my thermal sensor

Read my original post about the usage per thread dropping and it being spread out across all 8.

 

[diggiddi]

Quote:

Originally Posted by Blameless

Actually making use of 8+ logical CPUs requires at least that many threads, but this does not mean that every thread is always, or frequently taking advantage of all the cycles given it. Indeed this is a rare scenario.

There is almost always some sort of bottleneck that keeps a thread from 100% utilization, often this is simply waiting for other threads.

I don't know exactly how many threads of any significant CPU utilization BF3 can spawn, but even if it is one, or more, per logical CPU, the CPU being pegged at 100% utilization would be extremely rare.

Question, so why would a fx 63xx bottleneck say CFX 7950 or gti 660 sli 2 1080p if BF3 uses at most 6 threads, I'm trying to understand the process, thx

 

[Darklyric]

Something to do with the nb and cf sli I think. Even an 8350 is a bottleneck that I do know.

The 100-90% is from the recorder editing in the background though. The usage overall seems to have dropped but its also over 8 threads/cores now...

 

[Darklyric]

Bump still have no idea why this is happening now.

Edit: I'll make a new video with me opening bf3 with task manager open and then closing it before the video ends...