Comment 46 for bug 620074

Revision history for this message
In , bpenglase (bpenglase-linux-kernel-bugs) wrote :

(In reply to comment #18)
> I have had a very similar problem to this. I still have it often, but not as
> much from when I changed from EXT3 to ReiserFS. For the Scheduler, I've been
> using BFQ or V(R) thats included in the Zen Patchset. I have tried the stock
> kernel, and same problem exists, however I can't remember which scheduler I
> used at that point, I believe Deadline.
> Most of the IOWait I get comes when either I'm copying files to the local
> drives, or using multiple VM's (generally Windows as thats what is needed for
> work). I'm willing to try about anything to get this fixed. It's a little
> better since I switched FS's on my VM Drive, but still isn't totally fixed.
>

I did try the AS Scheduler, as that was the only thing I changed in my kernel, and it didn't change anything interactively, still get a high IO Wait.

The other thing I noticed, at least when in AS, I start using Swap, it's not a lot (within about 2 minutes I was using 10MB), but it was still climbing.

One other thing, I'm wondering if this is 64bit related. All of my personal boxes are 64bit, and it seems of ones posted here, along with other threads I've read (over on Gentoo forums) that it seems this hits the 64bit users more then the 32bit users. Any truth to this, or am I trying to relate things that aren't related?

My work box (most heavily used):
Linux PC010233L 2.6.28-zen1-2 #2 SMP PREEMPT Thu Jan 15 16:06:37 EST 2009 x86_64 Intel(R) Core(TM)2 Duo CPU E8200 @ 2.66GHz GenuineIntel GNU/Linux