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I've been noticing the cpu usage go up, back down for a couple minutes, and then go up again, and vice-versa...
Not constant but it happened several times. (almost always up to 23% cpu constant when it happens)
This happened just now only with firefox interaction, got skype and LoLClient running too..
Looking at it in Process Explorer, i see two files taking approximately 10% each:
The problem is after looking up that dxmgmms1.sys i found that it stands for "Microsoft DirectX Graphics MMS system driver file." and i can't remember updating it at all. The other one i believe it's what's enabling or something since it's kinda part of the Windows kernel?
I've done sfc couple months ago when i first noticed this, runned malware scans, windows always up-to-date and everything.
How can i fix this?
Edit: It happened again, i done a xperf scan as suggested:
xperf -on latency -stackwalk profile -buffersize 1024 -MaxFile 512 -FileMode Circular && timeout -1 && xperf -d highCPUUsage.etl
I uploaded the file to my dropbox, can someone tell analyze it or something? Or should i post on the msdn forums?
Thanks to whoever helps, hope i recorded it correctly, it displayed a warning when i started the trace.