sorry... i cced the old ML addresses :S fixing the CC now. On Mon, Feb 28, 2011 at 07:29:54PM +0100, Mike Galbraith wrote: > On Mon, 2011-02-28 at 18:53 +0100, torbenh wrote: > > > > On Tue, Feb 22, 2011 at 03:47:53PM +0100, Mike Galbraith wrote: > > > On Tue, 2011-02-22 at 13:24 +0100, torbenh wrote: > > > > On Fri, Feb 18, 2011 at 01:50:12PM +0100, Mike Galbraith wrote: > > > > > > > Sounds like you just want to turn CONFIG_RT_GROUP_SCHED off. > > > > > > > > but distros turn it on. > > > > we could prevent debian from turning it on. > > > > now opensuse 11.4 has turned it on. > > > > > > If you or anyone else turns on RT_GROUP_SCHED, you will count your > > > beans, and pay up front, or you will not play. That's a very sensible > > > policy for realtime. > > > > this probably means that generic computer distros should not turn this > > option on ? > > Yeah, agreed, not for a great default config, but only because > newfangled automation thingies can't (possibly?) deal with it sanely. but this is excactly the reason, why i would advocate rt_runtime to be in a separate cgroups system. any admin who wants to limit RT runtime could still do it. people who dont care, and just want their cfs slices configured, can still do it. > > > > If systemd deals with it at all, seems to me it can only make a mess of > > > it. But who knows, maybe they made a clever allocator. If they didn't, > > > they'll need an escape hatch methinks. > > > > the problem is that audio applications can not really pre allocate their > > cpu needs. user can add processing plugins until he pushes his machine > > to the limit. (or the cgroup where his process is running in) > > > > we dont really have a mechanism for plugins to publish their needed > > cycles. > > I can't see how it could matter what any individual group of arbitrary > groups N (who can appear/disappear in the blink of an eye) advertises as > it's wish of the instant. "Hard" + "Arbitrary" doesn't compute for me. i dont really understnad this statement. > > -Mike > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- torben Hohn _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
