Re: realtime preemption performance difference
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/
Re: realtime preemption performance difference
Hi Jaswinder, On Mon, Sep 24, 2007 at 05:18:01PM +0530, Jaswinder Singh 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. > 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 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/ > -- 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/
Re: realtime preemption performance difference
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, 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/
Re: realtime preemption performance difference
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, 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/
Re: realtime preemption performance difference
Hi Jaswinder, On Mon, Sep 24, 2007 at 05:18:01PM +0530, Jaswinder Singh 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. 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 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/ -- 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/
Re: realtime preemption performance difference
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/
Re: realtime preemption performance difference
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/
realtime preemption performance difference
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. 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/
realtime preemption performance difference
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. 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/
Re: realtime preemption performance difference
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/
