Hi Jaswinder, On Wed, Sep 26, 2007 at 12:41:57PM +0530, Jaswinder Singh wrote: > hello hufey, > > 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 > numbers, >
You can obtain several -rt testcases from the RT wiki: http://rt.wiki.kernel.org/index.php/Main_Page Here we have testcases/benchmarks for measuring scheduling latencies, priority preemption, signaling latencies, etc and other important information on the patchset. Hope this helps! > Can someone please share their samples and/or numbers. > > Thank you, > > Jaswinder Singh. > > On 9/25/07, hufey <[EMAIL PROTECTED]> wrote: > > On 9/24/07, Jaswinder Singh <[EMAIL PROTECTED]> 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 > > performance. > > > > > 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. > > > - > > > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > > > the body of a message to [EMAIL PROTECTED] > > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > Please read the FAQ at http://www.tux.org/lkml/ > > > > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to [EMAIL PROTECTED] > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- Regards, Ankita Garg ([EMAIL PROTECTED]) Linux Technology Center IBM India Systems & Technology Labs, Bangalore, India - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
