On Sat, 2007-04-28 at 06:25 +0200, Mike Galbraith wrote:
> On Fri, 2007-04-27 at 08:18 -0700, Linus Torvalds wrote:
>
> > Actually, you don't need to apply the patch - just do
> >
> > echo 5 > /proc/sys/vm/dirty_background_ratio
> > echo 10 > /proc/sys/vm/dirty_ratio
>
> That seems to have done the trick. Amarok and GUI aren't exactly speed
> demons while writeout is happening, but they are not hanging for
> eternities.
As promised, I tested with a kernel that I know for fact that I have
tested heavy IO on previously, and behavior was identically horrid, so
it's not something new that snuck in ~recently, my disk just got a _lot_
fuller in the meantime (12k mp3s munch a lot).
I also verified that I don't need to use the dirty data restrictions
with ext2, all is just peachy using stock settings. Amarok switches
songs quickly, and GUI doesn't hang. Behavior is that expected of a
heavily loaded IO subsystem, and is 1000% better than ext3 with my very
full disk.
Journaling is very nice, but I think I'll be much better off without it
responsiveness wise.
-Mike
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