2007/6/24, Ingo Molnar <[EMAIL PROTECTED]>:
* Antonino Ingargiola <[EMAIL PROTECTED]> wrote: > Anyway, I've discovered with great pleasure that CFS has also the > SCHED_ISO priority. I may have missed something, but I don't remember > to have read this in any of the CFS release notes :). For me this is a > really useful feature. Thanks. well, it's only a hack and emulated: SCHED_ISO in CFS is recognized as a policy but it falls back to SCHED_NORMAL. Could you check how well this (i.e. SCHED_NORMAL) works for your workload, compared to SD's SCHED_ISO?
To be fair, my workload is not really "critical". I'm used to skip-free audio listening (no matter what) since long time running my audio player with SCHED_ISO. Even in mainline the skips aren't so frequent, but still annoying. I'm using SCHED_ISO for the confidence it gives in providing skip-free audio. For my modest needs also CFS SCHED_NORMAL has been just fine (in these latest days). I'll report if I can find a more critical workload that can possibly stress CFS SCHED_NORMAL. Regards, ~ Antonio - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
