[lkml]   [2004]   [Jul]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: voluntary-preempt I0: sluggish feel

* Ingo Molnar <> wrote:

> > Oh, sorry for the noise. It was the NVIDIA driver. The open one works
> > much better with the I0 patch.
> i can reproduce this and i dont have the NVIDIA driver. When logging
> in over the network then shell output is chunky with a setting of 2
> (softirq redirection), shell output is smooth with a value of 1.

found the reason: ksoftirqd runs at priority 19 by default and this
causes batching and some softirq starvation. Does the sluggishness go
away if you do 'renice -10 2' [where '2' is the PID of ksoftirqd]?

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 14:04    [W:0.345 / U:0.756 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site