I do not want to touch the kernel at all. I was giving the information about cgroups since it was one of the question asked before. I understood that the SCHED_AUTOGROUP is not using at all cgroups. My question was more like : is there a way (like giving hint) to ask the autogroup system to group two SSH sesssions in order to get nice behaving as expected without disabling the whole autogroup system. Le 18.04.2013 17:32, Valdis.Kletnieks@vt.edu a écrit :
On Thu, 18 Apr 2013 16:57:41 +0200, Alexandre Laurent said:
Note : the cgroups are not mounted at all.
The cgroups filesystem doesn't have to be mounted for that - the kernel handles that internally.
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)
At that point, you're better off mounting the cgroups filesystem and using something like systemd to put tasks into cgroups and control them. It's a Really Bad Idea to try to handle that in-kernel. SCHED_AUTOGROUP relies on the fact that many heavy-load processes are launched from xterms, so grouping "everything in each xterm" into a separate group and then one group for everything launched from the desktop works pretty well. and is really bog-simple to code. Trying to do anything more complicated in-kernel will be a mess, because nobody agrees on a policy that should be used (other than the one used by AUTOGROUP)