Re: unfair scheduling with tbb application observed, could it be a kernel issue?

2012-08-06 Thread Mike Galbraith
Ok, with the sched_debug info you sent offline, booting with noautogroup appended to the kernel command line should fix it up for you. You've got autogroup enabled, which creates automagic per session task groups. -Mike -- To unsubscribe from this list: send the line "unsubscribe

Re: unfair scheduling with tbb application observed, could it be a kernel issue?

2012-08-06 Thread Mike Galbraith
On Mon, 2012-08-06 at 16:38 +0200, Mike Galbraith wrote: > On Mon, 2012-08-06 at 16:28 +0200, Pedro Larroy wrote: > > I didn't enable cgroups explicitly, and don't have userspace tools for > > that installed. > > You don't userspace tools. cat /proc//cgroup will show the group.

Re: unfair scheduling with tbb application observed, could it be a kernel issue?

2012-08-06 Thread Mike Galbraith
On Mon, 2012-08-06 at 16:28 +0200, Pedro Larroy wrote: > I didn't enable cgroups explicitly, and don't have userspace tools for > that installed. You don't userspace tools. cat /proc//cgroup will show the group. -Mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel"

Re: unfair scheduling with tbb application observed, could it be a kernel issue?

2012-08-06 Thread Pedro Larroy
I didn't enable cgroups explicitly, and don't have userspace tools for that installed. Thanks. Pedro. On Mon, Aug 6, 2012 at 4:25 PM, Mike Galbraith wrote: > On Mon, 2012-08-06 at 16:04 +0200, Pedro Larroy wrote: >> Hi >> >> I think we are observing unfair scheduling of processes that use

Re: unfair scheduling with tbb application observed, could it be a kernel issue?

2012-08-06 Thread Mike Galbraith
On Mon, 2012-08-06 at 16:04 +0200, Pedro Larroy wrote: > Hi > > I think we are observing unfair scheduling of processes that use intel > TBB thread scheduler, as we have several processes with nice of 19 and > ioniced idle, and somehow the process with nice 0 should be getting > more than 1000%

unfair scheduling with tbb application observed, could it be a kernel issue?

2012-08-06 Thread Pedro Larroy
Hi I think we are observing unfair scheduling of processes that use intel TBB thread scheduler, as we have several processes with nice of 19 and ioniced idle, and somehow the process with nice 0 should be getting more than 1000% cpu Any ideas? Kernel is 3.0.0.-17-generic on unbutu 11.10.

unfair scheduling with tbb application observed, could it be a kernel issue?

2012-08-06 Thread Pedro Larroy
Hi I think we are observing unfair scheduling of processes that use intel TBB thread scheduler, as we have several processes with nice of 19 and ioniced idle, and somehow the process with nice 0 should be getting more than 1000% cpu Any ideas? Kernel is 3.0.0.-17-generic on unbutu 11.10.

Re: unfair scheduling with tbb application observed, could it be a kernel issue?

2012-08-06 Thread Mike Galbraith
On Mon, 2012-08-06 at 16:04 +0200, Pedro Larroy wrote: Hi I think we are observing unfair scheduling of processes that use intel TBB thread scheduler, as we have several processes with nice of 19 and ioniced idle, and somehow the process with nice 0 should be getting more than 1000% cpu ..

Re: unfair scheduling with tbb application observed, could it be a kernel issue?

2012-08-06 Thread Pedro Larroy
I didn't enable cgroups explicitly, and don't have userspace tools for that installed. Thanks. Pedro. On Mon, Aug 6, 2012 at 4:25 PM, Mike Galbraith efa...@gmx.de wrote: On Mon, 2012-08-06 at 16:04 +0200, Pedro Larroy wrote: Hi I think we are observing unfair scheduling of processes that

Re: unfair scheduling with tbb application observed, could it be a kernel issue?

2012-08-06 Thread Mike Galbraith
On Mon, 2012-08-06 at 16:28 +0200, Pedro Larroy wrote: I didn't enable cgroups explicitly, and don't have userspace tools for that installed. You don't userspace tools. cat /proc/pid/cgroup will show the group. -Mike -- To unsubscribe from this list: send the line unsubscribe linux-kernel

Re: unfair scheduling with tbb application observed, could it be a kernel issue?

2012-08-06 Thread Mike Galbraith
On Mon, 2012-08-06 at 16:38 +0200, Mike Galbraith wrote: On Mon, 2012-08-06 at 16:28 +0200, Pedro Larroy wrote: I didn't enable cgroups explicitly, and don't have userspace tools for that installed. You don't userspace tools. cat /proc/pid/cgroup will show the group. ^need

Re: unfair scheduling with tbb application observed, could it be a kernel issue?

2012-08-06 Thread Mike Galbraith
Ok, with the sched_debug info you sent offline, booting with noautogroup appended to the kernel command line should fix it up for you. You've got autogroup enabled, which creates automagic per session task groups. -Mike -- To unsubscribe from this list: send the line unsubscribe linux-kernel