Re: Issue in PI boosting code in __sched_setscheduler

2015-05-07 Thread Ronny Meeus
On Thu, May 7, 2015 at 10:22 PM, Steven Rostedt wrote: > On Thu, 7 May 2015 22:17:48 +0200 > Ronny Meeus wrote: > >> > View on what? >> >> Whether the real-time priority threads are used a lot. >> I have the impression that there are severe issues in the Linux eco >> system (Kernel+glibc) when it

Re: Issue in PI boosting code in __sched_setscheduler

2015-05-07 Thread Steven Rostedt
On Thu, 7 May 2015 22:17:48 +0200 Ronny Meeus wrote: > > View on what? > > Whether the real-time priority threads are used a lot. > I have the impression that there are severe issues in the Linux eco > system (Kernel+glibc) when it comes to real-time priority handling. > It matters what you wa

Re: Issue in PI boosting code in __sched_setscheduler

2015-05-07 Thread Ronny Meeus
On Wed, May 6, 2015 at 5:23 AM, Steven Rostedt wrote: > On Wed, 6 May 2015 05:14:18 +0200 > Ronny Meeus wrote: > >> Thanks for looking into this. >> >> It looks to me that real-time priority threads are not used in many >> systems because we discovered already several issues, both in the >> kerne

Re: Issue in PI boosting code in __sched_setscheduler

2015-05-05 Thread Steven Rostedt
On Wed, 6 May 2015 05:14:18 +0200 Ronny Meeus wrote: > Thanks for looking into this. > > It looks to me that real-time priority threads are not used in many > systems because we discovered already several issues, both in the > kernel and glibc while we are using Linux only recently. > Do you hav

Re: Issue in PI boosting code in __sched_setscheduler

2015-05-05 Thread Ronny Meeus
On Thu, Apr 30, 2015 at 7:28 PM, Steven Rostedt wrote: > On Thu, 30 Apr 2015 19:05:02 +0200 > Mike Galbraith wrote: > >> LKML is a very high volume list, if you're seeing problems that were >> introduced by a particular patch, it's a good idea to CC the author of >> that patch. >> >> /me adds CC,

Re: Issue in PI boosting code in __sched_setscheduler

2015-04-30 Thread Steven Rostedt
On Thu, 30 Apr 2015 10:23:10 -0700 Davidlohr Bueso wrote: > On Thu, 2015-04-30 at 19:05 +0200, Mike Galbraith wrote: > > LKML is a very high volume list, if you're seeing problems that were > > introduced by a particular patch, it's a good idea to CC the author of > > that patch. > > Adding tglx

Re: Issue in PI boosting code in __sched_setscheduler

2015-04-30 Thread Steven Rostedt
On Thu, 30 Apr 2015 19:05:02 +0200 Mike Galbraith wrote: > LKML is a very high volume list, if you're seeing problems that were > introduced by a particular patch, it's a good idea to CC the author of > that patch. > > /me adds CC, and tags (again) to take a peek. Thanks Mike, although I'm not

Re: Issue in PI boosting code in __sched_setscheduler

2015-04-30 Thread Mike Galbraith
On Thu, 2015-04-30 at 10:23 -0700, Davidlohr Bueso wrote: > On Thu, 2015-04-30 at 19:05 +0200, Mike Galbraith wrote: > > LKML is a very high volume list, if you're seeing problems that were > > introduced by a particular patch, it's a good idea to CC the author of > > that patch. > > Adding tglx a

Re: Issue in PI boosting code in __sched_setscheduler

2015-04-30 Thread Davidlohr Bueso
On Thu, 2015-04-30 at 19:05 +0200, Mike Galbraith wrote: > LKML is a very high volume list, if you're seeing problems that were > introduced by a particular patch, it's a good idea to CC the author of > that patch. Adding tglx as well, who's the actual author. -- To unsubscribe from this list: se

Re: Issue in PI boosting code in __sched_setscheduler

2015-04-30 Thread Mike Galbraith
LKML is a very high volume list, if you're seeing problems that were introduced by a particular patch, it's a good idea to CC the author of that patch. /me adds CC, and tags (again) to take a peek. On Tue, 2015-03-17 at 21:10 +0100, Ronny Meeus wrote: > I'm using a patched kernel I get from Monta

Re: Issue in PI boosting code in __sched_setscheduler

2015-04-30 Thread Ronny Meeus
On Tue, Mar 17, 2015 at 9:10 PM, Ronny Meeus wrote: > I'm using a patched kernel I get from Monta-Vista, it is based on the > 3.10 kernel with some RT patches. > We ported an application from pSOS RTOS to Linux using the > Xenomai-Mercury (=library to map pSOS task to POSIX threads). > > One of th

Issue in PI boosting code in __sched_setscheduler

2015-03-17 Thread Ronny Meeus
I'm using a patched kernel I get from Monta-Vista, it is based on the 3.10 kernel with some RT patches. We ported an application from pSOS RTOS to Linux using the Xenomai-Mercury (=library to map pSOS task to POSIX threads). One of the patches applied to our kernel is: "[PATCH RT 3/4] sched: Consi