Re: realtime preemption performance difference
From: Jaswinder Singh
Date: Wed Sep 26 2007 - 03:12:34 EST
I am not using montavista kernel, I am using standard linux kernel.
Realtime is known by worst case latencies. Ingo and team are claiming
for realtime support so their should be some samples and performance
Can someone please share their samples and/or numbers.
On 9/25/07, hufey <hufeyy@xxxxxxxxx> wrote:
> On 9/24/07, Jaswinder Singh <jaswinderlinux@xxxxxxxxx> wrote:
> > Hi all,
> > I want to check performance difference by using realtime preemption patch :
> > http://www.kernel.org/pub/linux/kernel/projects/rt/
> > Please let me know from where I can download samples to test realtime
> > preemption performance difference.
> As far as I know, some embedded linux vendors such as MontaVista
> provide kernel patch to export some interfaces to measure realtime
> > Can someone please share performance numbers for your hardware:-
> > 1. Interrupt latency
> > 2. Task switching time
> > 3. hard-realtime scheduling latency
> > Thank you,
> > Jaswinder Singh.
> > -
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