Re: [PATCH] update: preemptive kernel for O(1) sched

Dieter =?ISO-8859-15?q?N=FCtzel?= (Dieter.Nuetzel@hamburg.de)
Mon, 14 Jan 2002 01:07:52 +0100


On Monday, 14. January 2002 00:48, you wrote:
> On Sun, 2002-01-13 at 18:22, Dieter Nützel wrote:
> > what about lock-break?
> > I am running your former one as always with
> > lock-break-rml-2.4.18-pre1-1.patch ...;-)
>
> I haven't tested O(1) together with lock-break personally, yet, but I
> have a confirmation of success from a couple of users. There are no
> reasons it shouldn't work.

I'll say that I am running this altogether.
Only vm-22 or rmap-11 are missing for now.
2.4.17 was running for me with vm-21 and preempt+look-beak.

> > Any success together with AA vm-22?
>
> Again I don't have any personal tests. I do know, however, the Rik's
> rmap VM works great.

AA, too . Best throughput I've ever seen.

> I suspect Andrea's updated VM from -aa will work, but there may be other
> parts of his patch (RCU) that are not preempt friendly.

But I've only used the VM parts not RCU, etc.

> > What about latencytest0.42-png for latency testing?
>
> A good test.

Expect some numbers (latency) for O(1) with and without preempt+lock-break
maybe with AA-VM, soon.

-Dieter
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