this is what you need

2018-02-13 Thread Peter Williams
Hi, I wanted to check in with you, did you receive my email from last week? I want to share a proven system with you. This system allows you to try the whole thing for f.r_ee for 30 days. You can finally change your future without giving up any sensitive information in advance. I s-ig-ned up

this is what you need

2018-02-13 Thread Peter Williams
Hi, I wanted to check in with you, did you receive my email from last week? I want to share a proven system with you. This system allows you to try the whole thing for f.r_ee for 30 days. You can finally change your future without giving up any sensitive information in advance. I s-ig-ned up

Re: [PATCH] sched: Rationalize sys_sched_rr_get_interval()

2007-10-16 Thread Peter Williams
Jarek Poplawski wrote: On 16-10-2007 03:16, Peter Williams wrote: ... I'd suggest that we modify sched_rr_get_interval() to return -EINVAL (with *interval set to zero) if the target task is not SCHED_RR. That way we can save a lot of unnecessary code. I'll work on a patch. ... I like

Re: [PATCH] sched: Rationalize sys_sched_rr_get_interval()

2007-10-16 Thread Peter Williams
Jarek Poplawski wrote: On 16-10-2007 03:16, Peter Williams wrote: ... I'd suggest that we modify sched_rr_get_interval() to return -EINVAL (with *interval set to zero) if the target task is not SCHED_RR. That way we can save a lot of unnecessary code. I'll work on a patch. ... I like

Re: [PATCH] sched: Rationalize sys_sched_rr_get_interval()

2007-10-15 Thread Peter Williams
Jarek Poplawski wrote: On 13-10-2007 03:29, Peter Williams wrote: Jarek Poplawski wrote: On 12-10-2007 00:23, Peter Williams wrote: ... The reason I was going that route was for modularity (which helps when adding plugsched patches). I'll submit a revised patch for consideration. ... IMHO

Re: [PATCH] sched: Rationalize sys_sched_rr_get_interval()

2007-10-15 Thread Peter Williams
Jarek Poplawski wrote: On 13-10-2007 03:29, Peter Williams wrote: Jarek Poplawski wrote: On 12-10-2007 00:23, Peter Williams wrote: ... The reason I was going that route was for modularity (which helps when adding plugsched patches). I'll submit a revised patch for consideration. ... IMHO

Re: [PATCH] sched: Rationalize sys_sched_rr_get_interval()

2007-10-12 Thread Peter Williams
Jarek Poplawski wrote: On 12-10-2007 00:23, Peter Williams wrote: ... The reason I was going that route was for modularity (which helps when adding plugsched patches). I'll submit a revised patch for consideration. ... IMHO, it looks like modularity could suck here: +static unsigned int

Re: [PATCH] sched: Rationalize sys_sched_rr_get_interval()

2007-10-12 Thread Peter Williams
Jarek Poplawski wrote: On 12-10-2007 00:23, Peter Williams wrote: ... The reason I was going that route was for modularity (which helps when adding plugsched patches). I'll submit a revised patch for consideration. ... IMHO, it looks like modularity could suck here: +static unsigned int

Re: [PATCH] sched: Rationalize sys_sched_rr_get_interval()

2007-10-11 Thread Peter Williams
Dmitry Adamushko wrote: On 11/10/2007, Ingo Molnar <[EMAIL PROTECTED]> wrote: * Peter Williams <[EMAIL PROTECTED]> wrote: -#define MIN_TIMESLICEmax(5 * HZ / 1000, 1) -#define DEF_TIMESLICE(100 * HZ / 1000) hm, this got removed by Dmitry quite s

[PATCH] sched: Rationalize sys_sched_rr_get_interval()

2007-10-11 Thread Peter Williams
and in the process moves all the code associated with static_prio_timeslice() to sched_rt.c which is the only place where it now has relevance. Signed-off-by: Peter Williams <[EMAIL PROTECTED]> Peter -- Peter Williams [EMAIL PROTECTED] "Learning,

[PATCH] sched: Exclude SMP code from non SMP builds

2007-10-11 Thread Peter Williams
non urgent) patch that I sent on the 15th of August has been applied. Signed-off-by: Peter Williams <[EMAIL PROTECTED]> Peter -- Peter Williams [EMAIL PROTECTED] "Learning, n. The kind of ignorance distinguishing the studious." -- Ambrose Bier

[PATCH] sched: Exclude SMP code from non SMP builds

2007-10-11 Thread Peter Williams
) patch that I sent on the 15th of August has been applied. Signed-off-by: Peter Williams [EMAIL PROTECTED] Peter -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind of ignorance distinguishing the studious. -- Ambrose Bierce diff -r df69cb019596 include

[PATCH] sched: Rationalize sys_sched_rr_get_interval()

2007-10-11 Thread Peter Williams
and in the process moves all the code associated with static_prio_timeslice() to sched_rt.c which is the only place where it now has relevance. Signed-off-by: Peter Williams [EMAIL PROTECTED] Peter -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind of ignorance

Re: [PATCH] sched: Rationalize sys_sched_rr_get_interval()

2007-10-11 Thread Peter Williams
Dmitry Adamushko wrote: On 11/10/2007, Ingo Molnar [EMAIL PROTECTED] wrote: * Peter Williams [EMAIL PROTECTED] wrote: -#define MIN_TIMESLICEmax(5 * HZ / 1000, 1) -#define DEF_TIMESLICE(100 * HZ / 1000) hm, this got removed by Dmitry quite some time ago. Could

Re: [PATCH] sched: Reduce overhead in balance_tasks()

2007-08-24 Thread Peter Williams
Ingo Molnar wrote: * Peter Williams <[EMAIL PROTECTED]> wrote: At the moment, balance_tasks() provides low level functionality for both move_tasks() and move_one_task() (indirectly) via the load_balance() function (in the sched_class interface) which also provides dual functio

Re: [PATCH] sched: Reduce overhead in balance_tasks()

2007-08-24 Thread Peter Williams
Ingo Molnar wrote: * Peter Williams [EMAIL PROTECTED] wrote: At the moment, balance_tasks() provides low level functionality for both move_tasks() and move_one_task() (indirectly) via the load_balance() function (in the sched_class interface) which also provides dual functionality

[PATCH] sched: Reduce overhead in balance_tasks()

2007-08-15 Thread Peter Williams
of the kernel. Signed-off-by: Peter Williams <[EMAIL PROTECTED]> Peter -- Peter Williams [EMAIL PROTECTED] "Learning, n. The kind of ignorance distinguishing the studious." -- Ambrose Bierce diff -r 90691a597f06 include/linux/sched.h --- a/include/l

[PATCH] sched: Reduce overhead in balance_tasks()

2007-08-15 Thread Peter Williams
of the kernel. Signed-off-by: Peter Williams [EMAIL PROTECTED] Peter -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind of ignorance distinguishing the studious. -- Ambrose Bierce diff -r 90691a597f06 include/linux/sched.h --- a/include/linux/sched.h Mon Aug 13

[PATCH] sched: Fix bug in balance_tasks()

2007-08-06 Thread Peter Williams
) if CONFIG_FAIR_GROUP_SCHED is set. This should preserve the effect of helping spread groups' higher priority tasks around the available CPUs while improving system performance when CONFIG_FAIR_GROUP_SCHED isn't set. Signed-off-by: Peter Williams <[EMAIL PROTECTED]> Peter -- Peter Wi

[PATCH] sched: Fix bug in balance_tasks()

2007-08-06 Thread Peter Williams
) if CONFIG_FAIR_GROUP_SCHED is set. This should preserve the effect of helping spread groups' higher priority tasks around the available CPUs while improving system performance when CONFIG_FAIR_GROUP_SCHED isn't set. Signed-off-by: Peter Williams [EMAIL PROTECTED] Peter -- Peter Williams

Possible error in 2.6.23-rc2-rt1 series

2007-08-05 Thread Peter Williams
. Is it correct? Peter -- Peter Williams [EMAIL PROTECTED] "Learning, n. The kind of ignorance distinguishing the studious." -- Ambrose Bierce - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message

Possible error in 2.6.23-rc2-rt1 series

2007-08-05 Thread Peter Williams
. Is it correct? Peter -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind of ignorance distinguishing the studious. -- Ambrose Bierce - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED

[PATCH] sched: Simplify move_tasks()

2007-08-03 Thread Peter Williams
). NB Since move_tasks() gets called with two run queue locks held even small reductions in overhead are worthwhile. Signed-off-by: Peter Williams <[EMAIL PROTECTED]> -- Peter Williams [EMAIL PROTECTED] "Learning, n. The kind of ignorance dis

[PATCH] sched: Simplify move_tasks()

2007-08-03 Thread Peter Williams
). NB Since move_tasks() gets called with two run queue locks held even small reductions in overhead are worthwhile. Signed-off-by: Peter Williams [EMAIL PROTECTED] -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind of ignorance distinguishing the studious

[PATCH] Tidy up left over smpnice code after changes introduced with CFS

2007-08-02 Thread Peter Williams
-by: Peter Williams <[EMAIL PROTECTED]> -- Peter Williams [EMAIL PROTECTED] "Learning, n. The kind of ignorance distinguishing the studious." -- Ambrose Bierce diff -r 622a128d084b kernel/sched.c --- a/kernel/sched.c Mon Jul 30 21:54:37 2007 -0700 +++

[PATCH] Tidy up left over smpnice code after changes introduced with CFS

2007-08-02 Thread Peter Williams
-by: Peter Williams [EMAIL PROTECTED] -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind of ignorance distinguishing the studious. -- Ambrose Bierce diff -r 622a128d084b kernel/sched.c --- a/kernel/sched.c Mon Jul 30 21:54:37 2007 -0700 +++ b/kernel/sched.c Thu

Minor errors in 2.6.23-rc1-rt2 series

2007-07-25 Thread Peter Williams
I've just been reviewing these patches and have spotted a couple of errors that look like they were caused by fuzz during the patch process. A patch that corrects the errors is attached. Cheers Peter -- Peter Williams [EMAIL PROTECTED] "Learning, n. The

Minor errors in 2.6.23-rc1-rt2 series

2007-07-25 Thread Peter Williams
I've just been reviewing these patches and have spotted a couple of errors that look like they were caused by fuzz during the patch process. A patch that corrects the errors is attached. Cheers Peter -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind

Re: [ANNOUNCE][RFC] PlugSched-6.5.1 for 2.6.22

2007-07-16 Thread Peter Williams
Ingo Molnar wrote: > * Peter Williams <[EMAIL PROTECTED]> wrote: > >> Probably the last one now that CFS is in the main line :-(. > > hm, why is CFS in mainline a problem? It means a major rewrite of the plugsched interface and I'm not sure that it's worth it (if CFS wor

Re: [ANNOUNCE][RFC] PlugSched-6.5.1 for 2.6.22

2007-07-16 Thread Peter Williams
Ingo Molnar wrote: * Peter Williams [EMAIL PROTECTED] wrote: Probably the last one now that CFS is in the main line :-(. hm, why is CFS in mainline a problem? It means a major rewrite of the plugsched interface and I'm not sure that it's worth it (if CFS works well). However, note that I

Re: Forward port of latest RT patch (2.6.21.5-rt20) to 2.6.22 available

2007-07-13 Thread Peter Williams
Gene Heskett wrote: > On Friday 13 July 2007, Peter Williams wrote: >> Ingo Molnar wrote: >>> * Gregory Haskins <[EMAIL PROTECTED]> wrote: >>>> On Thu, 2007-07-12 at 14:07 +0200, Ingo Molnar wrote: >>>>> * Gregory Haskins <[EMAIL PROTECTED]>

Re: Forward port of latest RT patch (2.6.21.5-rt20) to 2.6.22 available

2007-07-13 Thread Peter Williams
nd it extremely valuable to be able to bisect this >> beast while working on the 21-22 port. > > we are working on something in this area :) Stay tuned ... I've just been reviewing these patches and have spotted an error in the file mm/slob.c at lines 500-501 whereby a non existent varia

Re: Forward port of latest RT patch (2.6.21.5-rt20) to 2.6.22 available

2007-07-13 Thread Peter Williams
and have spotted an error in the file mm/slob.c at lines 500-501 whereby a non existent variable c is referenced. The attached patch is a proposed fix to the problem. -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind of ignorance distinguishing the studious

Re: Forward port of latest RT patch (2.6.21.5-rt20) to 2.6.22 available

2007-07-13 Thread Peter Williams
Gene Heskett wrote: On Friday 13 July 2007, Peter Williams wrote: Ingo Molnar wrote: * Gregory Haskins [EMAIL PROTECTED] wrote: On Thu, 2007-07-12 at 14:07 +0200, Ingo Molnar wrote: * Gregory Haskins [EMAIL PROTECTED] wrote: Hi Ingo, Thomas, and the greater linux-rt community, I just

[ANNOUNCE][RFC] PlugSched-6.5.1 for 2.6.22

2007-07-11 Thread Peter Williams
eduler will be ingosched (which is the normal scheduler). The scheduler in force on a running system can be determined by the contents of: /proc/scheduler Control parameters for the scheduler can be read/set via files in: /sys/cpusched// Peter -- Peter Williams

[ANNOUNCE][RFC] PlugSched-6.5.1 for 2.6.22

2007-07-11 Thread Peter Williams
scheduler will be ingosched (which is the normal scheduler). The scheduler in force on a running system can be determined by the contents of: /proc/scheduler Control parameters for the scheduler can be read/set via files in: /sys/cpusched/scheduler/ Peter -- Peter Williams

Re: [patch] CFS scheduler, -v12

2007-05-30 Thread Peter Williams
Siddha, Suresh B wrote: On Tue, May 29, 2007 at 07:18:18PM -0700, Peter Williams wrote: Siddha, Suresh B wrote: I can try 32-bit kernel to check. Don't bother. I just checked 2.6.22-rc3 and the problem is not present which means something between rc2 and rc3 has fixed the problem. I hate

Re: [patch] CFS scheduler, -v12

2007-05-30 Thread Peter Williams
Siddha, Suresh B wrote: On Tue, May 29, 2007 at 07:18:18PM -0700, Peter Williams wrote: Siddha, Suresh B wrote: I can try 32-bit kernel to check. Don't bother. I just checked 2.6.22-rc3 and the problem is not present which means something between rc2 and rc3 has fixed the problem. I hate

Re: [patch] CFS scheduler, -v12

2007-05-30 Thread Peter Williams
Siddha, Suresh B wrote: On Tue, May 29, 2007 at 07:18:18PM -0700, Peter Williams wrote: Siddha, Suresh B wrote: I can try 32-bit kernel to check. Don't bother. I just checked 2.6.22-rc3 and the problem is not present which means something between rc2 and rc3 has fixed the problem. I hate

Re: [patch] CFS scheduler, -v12

2007-05-30 Thread Peter Williams
Siddha, Suresh B wrote: On Tue, May 29, 2007 at 07:18:18PM -0700, Peter Williams wrote: Siddha, Suresh B wrote: I can try 32-bit kernel to check. Don't bother. I just checked 2.6.22-rc3 and the problem is not present which means something between rc2 and rc3 has fixed the problem. I hate

Re: [ckrm-tech] [RFC] [PATCH 0/3] Add group fairness to CFS

2007-05-29 Thread Peter Williams
William Lee Irwin III wrote: On Wed, May 30, 2007 at 10:09:28AM +1000, Peter Williams wrote: So what you're saying is that you think dynamic priority (or its equivalent) should be used for load balancing instead of static priority? It doesn't do much in other schemes, but when fairness

Re: [patch] CFS scheduler, -v12

2007-05-29 Thread Peter Williams
Siddha, Suresh B wrote: On Tue, May 29, 2007 at 04:54:29PM -0700, Peter Williams wrote: I tried with various refresh rates of top too.. Do you see the issue at runlevel 3 too? I haven't tried that. Do your spinners ever relinquish the CPU voluntarily? Nope. Simple and plain while(1); 's I

Re: [ckrm-tech] [RFC] [PATCH 0/3] Add group fairness to CFS

2007-05-29 Thread Peter Williams
William Lee Irwin III wrote: William Lee Irwin III wrote: Lag should be considered in lieu of load because lag On Sun, May 27, 2007 at 11:29:51AM +1000, Peter Williams wrote: What's the definition of lag here? Lag is the deviation of a task's allocated CPU time from the CPU time it would

Re: [patch] CFS scheduler, -v12

2007-05-29 Thread Peter Williams
Siddha, Suresh B wrote: On Thu, May 24, 2007 at 04:23:19PM -0700, Peter Williams wrote: Siddha, Suresh B wrote: On Thu, May 24, 2007 at 12:43:58AM -0700, Peter Williams wrote: Further testing indicates that CONFIG_SCHED_MC is not implicated and it's CONFIG_SCHED_SMT that's causing the problem

Re: [patch] CFS scheduler, -v12

2007-05-29 Thread Peter Williams
Siddha, Suresh B wrote: On Thu, May 24, 2007 at 04:23:19PM -0700, Peter Williams wrote: Siddha, Suresh B wrote: On Thu, May 24, 2007 at 12:43:58AM -0700, Peter Williams wrote: Further testing indicates that CONFIG_SCHED_MC is not implicated and it's CONFIG_SCHED_SMT that's causing the problem

Re: [ckrm-tech] [RFC] [PATCH 0/3] Add group fairness to CFS

2007-05-29 Thread Peter Williams
William Lee Irwin III wrote: William Lee Irwin III wrote: Lag should be considered in lieu of load because lag On Sun, May 27, 2007 at 11:29:51AM +1000, Peter Williams wrote: What's the definition of lag here? Lag is the deviation of a task's allocated CPU time from the CPU time it would

Re: [patch] CFS scheduler, -v12

2007-05-29 Thread Peter Williams
Siddha, Suresh B wrote: On Tue, May 29, 2007 at 04:54:29PM -0700, Peter Williams wrote: I tried with various refresh rates of top too.. Do you see the issue at runlevel 3 too? I haven't tried that. Do your spinners ever relinquish the CPU voluntarily? Nope. Simple and plain while(1); 's I

Re: [ckrm-tech] [RFC] [PATCH 0/3] Add group fairness to CFS

2007-05-29 Thread Peter Williams
William Lee Irwin III wrote: On Wed, May 30, 2007 at 10:09:28AM +1000, Peter Williams wrote: So what you're saying is that you think dynamic priority (or its equivalent) should be used for load balancing instead of static priority? It doesn't do much in other schemes, but when fairness

Re: [ckrm-tech] [RFC] [PATCH 0/3] Add group fairness to CFS

2007-05-28 Thread Peter Williams
Peter Williams wrote: Srivatsa Vaddagiri wrote: On Sat, May 26, 2007 at 10:17:42AM +1000, Peter Williams wrote: I don't think that ignoring cpu affinity is an option. Setting the cpu affinity of tasks is a deliberate policy action on the part of the system administrator and has

Re: [ckrm-tech] [RFC] [PATCH 0/3] Add group fairness to CFS

2007-05-28 Thread Peter Williams
Srivatsa Vaddagiri wrote: On Sat, May 26, 2007 at 10:17:42AM +1000, Peter Williams wrote: I don't think that ignoring cpu affinity is an option. Setting the cpu affinity of tasks is a deliberate policy action on the part of the system administrator and has to be honoured. mmm ..but users

Re: [ckrm-tech] [RFC] [PATCH 0/3] Add group fairness to CFS

2007-05-28 Thread Peter Williams
Srivatsa Vaddagiri wrote: On Sat, May 26, 2007 at 10:17:42AM +1000, Peter Williams wrote: I don't think that ignoring cpu affinity is an option. Setting the cpu affinity of tasks is a deliberate policy action on the part of the system administrator and has to be honoured. mmm ..but users

Re: [ckrm-tech] [RFC] [PATCH 0/3] Add group fairness to CFS

2007-05-28 Thread Peter Williams
Peter Williams wrote: Srivatsa Vaddagiri wrote: On Sat, May 26, 2007 at 10:17:42AM +1000, Peter Williams wrote: I don't think that ignoring cpu affinity is an option. Setting the cpu affinity of tasks is a deliberate policy action on the part of the system administrator and has

Re: [ckrm-tech] [RFC] [PATCH 0/3] Add group fairness to CFS

2007-05-26 Thread Peter Williams
William Lee Irwin III wrote: Srivatsa Vaddagiri wrote: Ingo/Peter, any thoughts here? CFS and smpnice probably is "broken" with respect to such example as above albeit for nice-based tasks. On Sat, May 26, 2007 at 10:17:42AM +1000, Peter Williams wrote: See above. I think

Re: [ckrm-tech] [RFC] [PATCH 0/3] Add group fairness to CFS

2007-05-26 Thread Peter Williams
William Lee Irwin III wrote: Srivatsa Vaddagiri wrote: Ingo/Peter, any thoughts here? CFS and smpnice probably is broken with respect to such example as above albeit for nice-based tasks. On Sat, May 26, 2007 at 10:17:42AM +1000, Peter Williams wrote: See above. I think that faced with cpu

Re: [ckrm-tech] [RFC] [PATCH 0/3] Add group fairness to CFS

2007-05-25 Thread Peter Williams
run queue and using that to modify find_busiest_group() and find_busiest_queue() to be a bit smarter. But I'm not sure that it would be worth the added complexity. Peter -- Peter Williams [EMAIL PROTECTED] "Learning, n. The kind of ignorance distinguishing t

Re: [ckrm-tech] [RFC] [PATCH 0/3] Add group fairness to CFS

2007-05-25 Thread Peter Williams
that to modify find_busiest_group() and find_busiest_queue() to be a bit smarter. But I'm not sure that it would be worth the added complexity. Peter -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind of ignorance distinguishing the studious. -- Ambrose Bierce

Re: [patch] CFS scheduler, -v12

2007-05-24 Thread Peter Williams
Siddha, Suresh B wrote: On Thu, May 24, 2007 at 12:43:58AM -0700, Peter Williams wrote: Peter Williams wrote: The relevant code, find_busiest_group() and find_busiest_queue(), has a lot of code that is ifdefed by CONFIG_SCHED_MC and CONFIG_SCHED_SMT and, as these macros were defined

Re: [patch] CFS scheduler, -v12

2007-05-24 Thread Peter Williams
Peter Williams wrote: Peter Williams wrote: Peter Williams wrote: Dmitry Adamushko wrote: On 18/05/07, Peter Williams <[EMAIL PROTECTED]> wrote: [...] One thing that might work is to jitter the load balancing interval a bit. The reason I say this is that one of the characteristics

Re: [patch] CFS scheduler, -v12

2007-05-24 Thread Peter Williams
Peter Williams wrote: Peter Williams wrote: Peter Williams wrote: Dmitry Adamushko wrote: On 18/05/07, Peter Williams [EMAIL PROTECTED] wrote: [...] One thing that might work is to jitter the load balancing interval a bit. The reason I say this is that one of the characteristics of top

Re: [patch] CFS scheduler, -v12

2007-05-24 Thread Peter Williams
Siddha, Suresh B wrote: On Thu, May 24, 2007 at 12:43:58AM -0700, Peter Williams wrote: Peter Williams wrote: The relevant code, find_busiest_group() and find_busiest_queue(), has a lot of code that is ifdefed by CONFIG_SCHED_MC and CONFIG_SCHED_SMT and, as these macros were defined

Re: [patch] CFS scheduler, -v12

2007-05-22 Thread Peter Williams
Dmitry Adamushko wrote: On 22/05/07, Peter Williams <[EMAIL PROTECTED]> wrote: > [...] > Hum.. I guess, a 0/4 scenario wouldn't fit well in this explanation.. No, and I haven't seen one. Well, I just took one of your calculated probabilities as something you have really observed

Re: [patch] CFS scheduler, -v12

2007-05-22 Thread Peter Williams
Peter Williams wrote: Peter Williams wrote: Dmitry Adamushko wrote: On 18/05/07, Peter Williams <[EMAIL PROTECTED]> wrote: [...] One thing that might work is to jitter the load balancing interval a bit. The reason I say this is that one of the characteristics of top and g

Re: [patch] CFS scheduler, -v12

2007-05-22 Thread Peter Williams
Dmitry Adamushko wrote: On 22/05/07, Peter Williams [EMAIL PROTECTED] wrote: [...] Hum.. I guess, a 0/4 scenario wouldn't fit well in this explanation.. No, and I haven't seen one. Well, I just took one of your calculated probabilities as something you have really observed - (*) below

Re: [patch] CFS scheduler, -v12

2007-05-22 Thread Peter Williams
Peter Williams wrote: Peter Williams wrote: Dmitry Adamushko wrote: On 18/05/07, Peter Williams [EMAIL PROTECTED] wrote: [...] One thing that might work is to jitter the load balancing interval a bit. The reason I say this is that one of the characteristics of top and gkrellm

Re: [patch] CFS scheduler, -v12

2007-05-21 Thread Peter Williams
Peter Williams wrote: Dmitry Adamushko wrote: On 18/05/07, Peter Williams <[EMAIL PROTECTED]> wrote: [...] One thing that might work is to jitter the load balancing interval a bit. The reason I say this is that one of the characteristics of top and gkrellm is that they run at a more o

Re: [patch] CFS scheduler, -v12

2007-05-21 Thread Peter Williams
Dmitry Adamushko wrote: On 18/05/07, Peter Williams <[EMAIL PROTECTED]> wrote: [...] One thing that might work is to jitter the load balancing interval a bit. The reason I say this is that one of the characteristics of top and gkrellm is that they run at a more or less constant in

Re: [patch] CFS scheduler, -v12

2007-05-21 Thread Peter Williams
Dmitry Adamushko wrote: On 18/05/07, Peter Williams [EMAIL PROTECTED] wrote: [...] One thing that might work is to jitter the load balancing interval a bit. The reason I say this is that one of the characteristics of top and gkrellm is that they run at a more or less constant interval

Re: [patch] CFS scheduler, -v12

2007-05-21 Thread Peter Williams
Peter Williams wrote: Dmitry Adamushko wrote: On 18/05/07, Peter Williams [EMAIL PROTECTED] wrote: [...] One thing that might work is to jitter the load balancing interval a bit. The reason I say this is that one of the characteristics of top and gkrellm is that they run at a more or less

Re: [patch] CFS scheduler, -v12

2007-05-19 Thread Peter Williams
Dmitry Adamushko wrote: On 18/05/07, Peter Williams <[EMAIL PROTECTED]> wrote: [...] One thing that might work is to jitter the load balancing interval a bit. The reason I say this is that one of the characteristics of top and gkrellm is that they run at a more or less constant in

Re: [patch] CFS scheduler, -v12

2007-05-19 Thread Peter Williams
Dmitry Adamushko wrote: On 18/05/07, Peter Williams [EMAIL PROTECTED] wrote: [...] One thing that might work is to jitter the load balancing interval a bit. The reason I say this is that one of the characteristics of top and gkrellm is that they run at a more or less constant interval

Re: [patch] CFS scheduler, -v12

2007-05-18 Thread Peter Williams
Peter Williams wrote: Ingo Molnar wrote: * Peter Williams <[EMAIL PROTECTED]> wrote: I've now done this test on a number of kernels: 2.6.21 and 2.6.22-rc1 with and without CFS; and the problem is always present. It's not "nice" related as the all four tasks are run at nice =

Re: [patch] CFS scheduler, -v12

2007-05-18 Thread Peter Williams
Ingo Molnar wrote: * Peter Williams <[EMAIL PROTECTED]> wrote: I've now done this test on a number of kernels: 2.6.21 and 2.6.22-rc1 with and without CFS; and the problem is always present. It's not "nice" related as the all four tasks are run at nice == 0. could you

Re: [patch] CFS scheduler, -v12

2007-05-18 Thread Peter Williams
Ingo Molnar wrote: * Peter Williams [EMAIL PROTECTED] wrote: I've now done this test on a number of kernels: 2.6.21 and 2.6.22-rc1 with and without CFS; and the problem is always present. It's not nice related as the all four tasks are run at nice == 0. could you try -v13 and did

Re: [patch] CFS scheduler, -v12

2007-05-18 Thread Peter Williams
Peter Williams wrote: Ingo Molnar wrote: * Peter Williams [EMAIL PROTECTED] wrote: I've now done this test on a number of kernels: 2.6.21 and 2.6.22-rc1 with and without CFS; and the problem is always present. It's not nice related as the all four tasks are run at nice == 0. could you try

Re: [patch] CFS scheduler, -v12

2007-05-17 Thread Peter Williams
Ingo Molnar wrote: * Peter Williams <[EMAIL PROTECTED]> wrote: Load balancing appears to be badly broken in this version. When I started 4 hard spinners on my 2 CPU machine one ended up on one CPU and the other 3 on the other CPU and they stayed there. could you try to debug this

Re: [patch] CFS scheduler, -v12

2007-05-17 Thread Peter Williams
Ingo Molnar wrote: * Peter Williams [EMAIL PROTECTED] wrote: Load balancing appears to be badly broken in this version. When I started 4 hard spinners on my 2 CPU machine one ended up on one CPU and the other 3 on the other CPU and they stayed there. could you try to debug this a bit more

Re: [patch] CFS scheduler, -v12

2007-05-16 Thread Peter Williams
Ingo Molnar wrote: * Peter Williams <[EMAIL PROTECTED]> wrote: As usual, any sort of feedback, bugreport, fix and suggestion is more than welcome, Load balancing appears to be badly broken in this version. When I started 4 hard spinners on my 2 CPU machine one ended up on o

Re: [patch] CFS scheduler, -v12

2007-05-16 Thread Peter Williams
Ingo Molnar wrote: * Peter Williams [EMAIL PROTECTED] wrote: As usual, any sort of feedback, bugreport, fix and suggestion is more than welcome, Load balancing appears to be badly broken in this version. When I started 4 hard spinners on my 2 CPU machine one ended up on one CPU

Re: [patch] CFS scheduler, -v12

2007-05-15 Thread Peter Williams
other CPU and they stayed there. Peter -- Peter Williams [EMAIL PROTECTED] "Learning, n. The kind of ignorance distinguishing the studious." -- Ambrose Bierce - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of

Re: [patch] CFS scheduler, -v12

2007-05-15 Thread Peter Williams
and they stayed there. Peter -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind of ignorance distinguishing the studious. -- Ambrose Bierce - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More

Re: [patch] CFS scheduler, -v8

2007-05-08 Thread Peter Williams
Esben Nielsen wrote: On Tue, 8 May 2007, Peter Williams wrote: Esben Nielsen wrote: On Sun, 6 May 2007, Linus Torvalds wrote: > > > On Sun, 6 May 2007, Ingo Molnar wrote: > > > > * Linus Torvalds <[EMAIL PROTECTED]> wrote: > > > > >

Re: [patch] CFS scheduler, -v8

2007-05-08 Thread Peter Williams
Esben Nielsen wrote: On Tue, 8 May 2007, Peter Williams wrote: Esben Nielsen wrote: On Sun, 6 May 2007, Linus Torvalds wrote: On Sun, 6 May 2007, Ingo Molnar wrote: * Linus Torvalds [EMAIL PROTECTED] wrote: So the _only_ valid way to handle timers is to - either

Re: [patch] CFS scheduler, -v8

2007-05-07 Thread Peter Williams
iting time values to that value would not break anything. Except if you're measuring sleep times. I think that you'll find lots of tasks sleep for more than 72 minutes. Peter -- Peter Williams [EMAIL PROTECTED] "Learning, n. The kind of ignorance disting

Re: [patch] CFS scheduler, -v8

2007-05-07 Thread Peter Williams
sleep for more than 72 minutes. Peter -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind of ignorance distinguishing the studious. -- Ambrose Bierce - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message

[ANNOUNCE][RFC] PlugSched-6.5.1 for 2.6.21

2007-05-01 Thread Peter Williams
l parameters for the scheduler can be read/set via files in: /sys/cpusched// Peter -- Peter Williams [EMAIL PROTECTED] "Learning, n. The kind of ignorance distinguishing the studious." -- Ambrose Bierce - To unsubscribe from this list: send the line &qu

[ANNOUNCE][RFC] PlugSched-6.5.1 for 2.6.21

2007-05-01 Thread Peter Williams
parameters for the scheduler can be read/set via files in: /sys/cpusched/scheduler/ Peter -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind of ignorance distinguishing the studious. -- Ambrose Bierce - To unsubscribe from this list: send the line

Re: Linux-2.6.21 hangs during post boot initialization phase

2007-04-27 Thread Peter Williams
Neil Horman wrote: On Sat, Apr 28, 2007 at 12:28:28AM +1000, Peter Williams wrote: Neil Horman wrote: On Fri, Apr 27, 2007 at 04:05:11PM +1000, Peter Williams wrote: Damn, This is what happens when I try to do things too quickly. I missed one spot in my last patch where I replaced skb

Re: Linux-2.6.21 hangs during post boot initialization phase

2007-04-27 Thread Peter Williams
Neil Horman wrote: On Fri, Apr 27, 2007 at 04:05:11PM +1000, Peter Williams wrote: Linus Torvalds wrote: On Fri, 27 Apr 2007, Peter Williams wrote: The 2.6.21 kernel is hanging during the post boot phase where various daemons are being started (not always the same daemon unfortunately

Re: Linux-2.6.21 hangs during post boot initialization phase

2007-04-27 Thread Peter Williams
Linus Torvalds wrote: On Fri, 27 Apr 2007, Peter Williams wrote: The 2.6.21 kernel is hanging during the post boot phase where various daemons are being started (not always the same daemon unfortunately). This problem was not present in 2.6.21-rc7 and there is no oops or other unusual output

Re: Linux-2.6.21 hangs during post boot initialization phase

2007-04-27 Thread Peter Williams
Linus Torvalds wrote: On Fri, 27 Apr 2007, Peter Williams wrote: The 2.6.21 kernel is hanging during the post boot phase where various daemons are being started (not always the same daemon unfortunately). This problem was not present in 2.6.21-rc7 and there is no oops or other unusual output

Re: Linux-2.6.21 hangs during post boot initialization phase

2007-04-27 Thread Peter Williams
Neil Horman wrote: On Fri, Apr 27, 2007 at 04:05:11PM +1000, Peter Williams wrote: Linus Torvalds wrote: On Fri, 27 Apr 2007, Peter Williams wrote: The 2.6.21 kernel is hanging during the post boot phase where various daemons are being started (not always the same daemon unfortunately

Re: Linux-2.6.21 hangs during post boot initialization phase

2007-04-27 Thread Peter Williams
Neil Horman wrote: On Sat, Apr 28, 2007 at 12:28:28AM +1000, Peter Williams wrote: Neil Horman wrote: On Fri, Apr 27, 2007 at 04:05:11PM +1000, Peter Williams wrote: Damn, This is what happens when I try to do things too quickly. I missed one spot in my last patch where I replaced skb

Re: Linux-2.6.21 hangs during post boot initialization phase

2007-04-26 Thread Peter Williams
Linus Torvalds wrote: On Fri, 27 Apr 2007, Peter Williams wrote: The 2.6.21 kernel is hanging during the post boot phase where various daemons are being started (not always the same daemon unfortunately). This problem was not present in 2.6.21-rc7 and there is no oops or other unusual output

Re: Linux-2.6.21 hangs during post boot initialization phase

2007-04-26 Thread Peter Williams
Linus Torvalds wrote: On Fri, 27 Apr 2007, Peter Williams wrote: The 2.6.21 kernel is hanging during the post boot phase where various daemons are being started (not always the same daemon unfortunately). This problem was not present in 2.6.21-rc7 and there is no oops or other unusual output

Re: [REPORT] cfs-v4 vs sd-0.44

2007-04-24 Thread Peter Williams
. Of course, I could (very likely!) be full of it! ;-) And won't be using the any new scheduler on these computers anyhow as that would involve bringing the system down to install the new kernel. :-) Peter -- Peter Williams [EMAIL PROTECTED] "Learning, n. The

Re: [REPORT] cfs-v4 vs sd-0.44

2007-04-24 Thread Peter Williams
pler ways to give X more CPU if it needs it. However, I think there's something seriously wrong if it needs the -19 nice that I've heard mentioned. You might as well just run it as a real time process. Peter -- Peter Williams [EMAIL PROTECTED] "Learning, n. The

Re: [REPORT] cfs-v4 vs sd-0.44

2007-04-24 Thread Peter Williams
think there's something seriously wrong if it needs the -19 nice that I've heard mentioned. You might as well just run it as a real time process. Peter -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind of ignorance distinguishing the studious

Re: [REPORT] cfs-v4 vs sd-0.44

2007-04-24 Thread Peter Williams
. Of course, I could (very likely!) be full of it! ;-) And won't be using the any new scheduler on these computers anyhow as that would involve bringing the system down to install the new kernel. :-) Peter -- Peter Williams [EMAIL PROTECTED] Learning, n. The kind

Re: [REPORT] cfs-v4 vs sd-0.44

2007-04-23 Thread Peter Williams
because the O(1) tried this model and failed doesn't mean that the model is bad. O(1) was a flawed implementation of a good model. Peter PS Doing a kernel build in an xterm isn't an example of high enough output to cause a problem as (on my system) it only raises X's consumption from 0 to 2% to 2 to

Re: [REPORT] cfs-v4 vs sd-0.44

2007-04-23 Thread Peter Williams
. Peter PS Doing a kernel build in an xterm isn't an example of high enough output to cause a problem as (on my system) it only raises X's consumption from 0 to 2% to 2 to 5%. The type of output that causes the problem is usually flying past too fast to read. -- Peter Williams

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