We already have code to launch processes at lower prio, we could easily extend to do cgroup as well
On Friday, November 19, 2010, Andrea Suisani <sick...@opinioni.net> wrote: > Hi All, > > I was wondering if somebody is following the on-going discussion > about exploiting the group scheduling[1] kernel feature (available > since 2.6.24) to increase "user desktop experience" (I'm not saying > that e17 is slow, on the contrary it makes bite the dust to gnome/kde > on my system :-). > > Basically Mike Galbraith post a kernel patch [2] to lmkl > to implement automatic TTY-based group scheduling (see [3] > for a detailed discussion), . > > In short, this patch automatically creates a group attached to each TTY > in the system. All processes with a given TTY as their controlling terminal > will be placed in the appropriate group; the group scheduling code can then > share CPU time between groups of processes as determined by their controlling > terminals. > > During the aforementioned discussion Lennart Poettering post a > user space trick [4] to achieve the same behaviour without patching > the kernel. > > This "trick" is simply a metter of adding 4 lines to your ~/.bashrc: > > if [ "$PS1" ] ; then > mkdir -m 0700 /cgroup/cpu/$$ > echo $$ > /cgroup/cpu/$$/tasks > fi > > and add those 3 to your rc.local > > mkdir -p /cgroup/cpu > mount -t cgroup cgroup /cgroup/cpu -o cpu > mkdir -m 0777 /cgroup/cpu > > I've used it on my own system and I can say that it works > (if your work-flow involved quite often launching tasks > from a terminal). > > Now I'm wondering if Everything could be modified in such a way > it could take the advantages of this kernel feature, providing an > interface to the user to group tasks based on some custom criteria > or simply automatically group task based on some defaults. > > Obviusly if I had the C skill to do it by myself, I would bite... > but unfortunately it's not the case :P > > Andrea > > [1] http://lwn.net/Articles/240474/ > [2] http://thread.gmane.org/gmane.linux.kernel/1062787 > [3] http://lwn.net/SubscriberLink/415740/0b54c2b876c89d3a/ > [4] http://thread.gmane.org/gmane.linux.kernel/1063263 > > > > > ------------------------------------------------------------------------------ > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today > http://p.sf.net/sfu/msIE9-sfdev2dev > _______________________________________________ > enlightenment-devel mailing list > enlightenment-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel > -- Gustavo Sverzut Barbieri http://profusion.mobi embedded systems -------------------------------------- MSN: barbi...@gmail.com Skype: gsbarbieri Mobile: +55 (19) 9225-2202 ------------------------------------------------------------------------------ Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today http://p.sf.net/sfu/msIE9-sfdev2dev _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
