Re: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for 2.6.21-rc3-mm2

Mike Galbraith
2007-03-13T09:33:21Z

On Tue, 2007-03-13 at 09:18 +0100, Ingo Molnar wrote:

> Con, we want RSDL to /improve/ interactivity. Having new scheduler
> interactivity logic that behaves /worse/ in the presence of CPU hogs,
> which CPU hogs are even reniced to +5, than the current interactivity
> code, is i think a non-starter. Could you try to fix this, please? Good
> interactivity in the presence of CPU hogs (be them default nice level or
> nice +5) is _the_ most important scheduler interactivity metric.
> Anything else is really secondary.

I just retested with the encoders at nice 0, and the x/gforce combo is
terrible. Funny thing though, x/gforce isn't as badly affected with a
kernel build. Any build is quite noticable, but even at -j8, the effect
doen't seem to be (very brief test warning applies) as bad as with only
the two encoders running. That seems quite odd.

-Mike