Re: [CFT][PATCH] new scheduler policy

Roger Luethi
2003-08-22T08:55:31Z

On Tue, 19 Aug 2003 11:53:01 +1000, Nick Piggin wrote:
> I haven't run many tests on it - my mind blanked when I tried to
> remember the scores of scheduler "exploits" thrown around. So if
> anyone would like to suggest some, or better still, run some,
> please do so. And be nice, this isn't my type of scheduler :P

I timed a pathological benchmark from hell I've been playing with lately.
Three consecutive runs following a fresh boot. Time is in seconds:

2.4.21 821 21 25
2.6.0-test3-mm1 724 946 896
2.6.0-test3-mm1-nick 905 987 997

Runtime with ideal scheduling: < 2 seconds (we're thrashing).

If anybody has thrashing test cases closer to the real world, I'd be very
interested to learn about them.

Roger