Messages in this thread | | | Date | Tue, 21 Mar 2006 12:18:50 +0100 | From | Ingo Molnar <> | Subject | Re: interactive task starvation |
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* Willy Tarreau <willy@w.ods.org> wrote:
> On Tue, Mar 21, 2006 at 10:14:22AM +0100, Ingo Molnar wrote: > > > > * Willy Tarreau <willy@w.ods.org> wrote: > > > > > > > > On Tue, Mar 21, 2006 at 08:51:38AM +0100, Mike Galbraith wrote: > > > > On Tue, 2006-03-21 at 07:47 +0100, Willy Tarreau wrote: > > > > > Hi Mike, > > > > > > > > Greetings! > > > > > > Thanks for the details, > > > I'll try to find some time to test your code quickly. If this fixes this > > > long standing problem, we should definitely try to get it into 2.6.17 ! > > > > the time window is quickly closing for that to happen though. > > Ingo, Mike, > > it's a great day :-) > > Right now, I'm typing this mail from my notebook which has 8 instances > of my exploit running in background. Previously, 4 of them were enough > on this machine to create pauses of up to 31 seconds. Right now, I can > type normally, and I simply can say that my exploit has no effect > anymore ! It's just consuming CPU and nothing else. I also tried to > write 0 to grace_g[12] and I find it even more responsive with 0 in > those values. I've not had time to do more extensive tests, but I can > assure you that the problem is clearly solved for me. I'd like Grant > to test ssh on his firewall with it too.
great work by Mike! One detail: i'd like there to be just one default throttling value, i.e. no grace_g tunables [so that we have just one default scheduler behavior]. Is the default grace_g[12] setting good enough for your workload?
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