Re: 2.1.126 SMP scheduling
Andi Kleen (ak@muc.de)
28 Oct 1998 08:25:01 +0100
In article <36360441.BCC187F2@ecn.purdue.edu>,
Noah Beck <noah@ecn.purdue.edu> writes:
> If, for example, I run four parallel loops as below, the interactive
> remote performance of the system is something like, if I hold down
> the <return> key so tcsh prints out a bunch of prompts, I only get
> about one or two prompts printed per second on average. If one were
> to move the mouse on the X console during this time, it would be
> extremely jumpy. Attempting to interactively edit files is an exercise
> in cursor prediction, as well.
I see similar symptoms on both SMP and UP. If I nice the cpu hogs it
gets better, but per default the scheduler is very nasty to
interactice processes. This seems to be a regression compared to 2.0.
-Andi
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