Hello, Disabling SCHED_AUTOGROUP (by using the flag kernel.sched_autogroup_enabled with sysctl) did work very well. Thank you a lot. This is understandable, when reading the following description : " This option optimizes the scheduler for common desktop workloads by automatically creating and populating task groups. This separation of workloads isolates aggressive CPU burners (like build jobs) from desktop applications. Task group autogeneration is currently based upon task session. " Note : the cgroups are not mounted at all. I still have a little question about it : Is it possible to force the grouping of specific tasks ? (Which could be better than just disabling the feature) Best regards, Le 16.04.2013 19:59, Kristof Provost a écrit : > On 2013-04-16 17:38:50 (+0200), Alexandre Laurent > <alexandre.laurent@xxxxxxx> wrote: > >> On the computer where I am testing, I have nothing related to >> cgroups. >> Here a 'ps aux' in case I am missing something. > > cgroups wouldn't actually show up in the process list. Check mount to > see if anyone mounts an fs of type 'cgroup'. > > It's perhaps even more likely that it's related to SCHED_AUTOGROUP as > Michi suggested. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies