* Ed Tomlinson <[email protected]> wrote:
> > SD 0.46 1-2 FPS
> > cfs v5 nice -19 219-233 FPS
> > cfs v5 nice 0 1000-1996
> cfs v5 nice -10 60-65 FPS
the problem is, the glxgears portion of this test is an _inverse_
testcase.
The reason? glxgears on true 3D hardware will _not_ use X, it will
directly use the 3D driver of the kernel. So by renicing X to -19 you
give the xterms more chance to show stuff - the performance of the
glxgears will 'degrade' - but that is what you asked for: glxgears is
'just another CPU hog' that competes with X, it's not a "true" X client.
if you are after glxgears performance in this test then you'll get the
best performance out of this by renicing X to +19 or even SCHED_BATCH.
Ingo
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