-Infinite. Feb 19, 2013 @ 1:07am
Steam running slow, CPU problem?
edit: steam only runs slowly when I'm downloading something:
Not downloading: http://i.imgur.com/u9qVPVI.jpg
vs
downloading: http://i.imgur.com/OlDZMXg.jpg

I installed steam a few days ago on linux(ubuntu 12.10 64-bit) and it runs so slow I can't do anything, even download a game. I opened the system monitor and chacked what was happening and steam was constantly using one of my 4 cores 100% and the other 3 cores <10%. It also was switching between which core it used 100% every 1-3 seconds.

My specs:
Chipset : AMD RD770
Processor : AMD Phenom II X4 925e @ 2800 MHz
Physical Memory : 4096 MB (2 x 2048 DDR3-SDRAM )
Video Card : NVIDIA GeForce GT 440
Hard Disk : WDC (1500 GB)

I have updated ubuntu and all programs run fine except steam.

Do I just have to wait for a steam update or can I change some settings(in the BIOS?) to make it work properly?

Thanks
Last edited by -Infinite.; Feb 20, 2013 @ 7:26am
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Oerthling Feb 19, 2013 @ 1:29pm 
When you say "Steam" - do you mean just the Steam client - or have you a game running at the time?

Assuming just Steam - that's weird. Just checked here and my quadcore is bored while running Steam (all cores below 10% with occasional short spikes into the 40%-50% range while I type this.).

Is the proprietary driver for your NVidia card activated? The high CPU activity could be explained by a fallback like LLVMpipe that uses the CPU instead of your GPU to do opengl.

I'm using Ubuntu 12.10 (64bit) here also and don't have those problems. Also a quadcore, also an NVidia card (GTX 660M with 310 drivers - from Ubuntu repo).
-Infinite. Feb 20, 2013 @ 5:10am 
Thanks for your response!

Originally posted by JUSTME:
When you say "Steam" - do you mean just the Steam client - or have you a game running at the time?

I mean the steam client.

Originally posted by JUSTME:
Assuming just Steam - that's weird. Just checked here and my quadcore is bored while running Steam (all cores below 10% with occasional short spikes into the 40%-50% range while I type this.).

I have messed around some more and found that steam runs fine(same CPU usage as you) when no game is downloading, but when I try to download a game it downloads at 10 MB/s (normal for me on windows 7) for a few seconds then steam jams and the system monitor says nothing is downloading. I tested if this is a steam only problem by watching a youtube video in 1080p, and it didn't stop once to buffer.

Originally posted by JUSTME:
Is the proprietary driver for your NVidia card activated? The high CPU activity could be explained by a fallback like LLVMpipe that uses the CPU instead of your GPU to do opengl.

I have installed nvidia experimental 310, but no other proprietary drivers.
-Infinite. Feb 20, 2013 @ 7:27am 
I've added screenshots in the description.
Oerthling Feb 21, 2013 @ 3:09pm 
Hm - that's weird and interesting.
Next time I'll have a download I'll see if I can reproduce this behaviour.
I wouldn't expect a download to excercise the CPU that much - unless there is uncompresion going on (which could be the case of course).

10 MB/s??? Wow!
Fibre?

I'm getting 700KB/s which is fairly good DSL speed.

Can you throttle your bandwidth and see whether that affects your CPU load?
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Date Posted: Feb 19, 2013 @ 1:07am
Posts: 4