Messages in this thread |  | | | Subject | Re: [RFC/RFT PATCH v3] sched: automated per tty task groups | | From | Mike Galbraith <> | | Date | Thu, 11 Nov 2010 12:35:11 -0700 |
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On Thu, 2010-11-11 at 20:15 +0100, Markus Trippelsdorf wrote:
> Just to add some data; here are the results from my machine (AMD 4 > cores) running a -j4 kernel build, while I browsed the web: > > 1) perf sched record sleep 30 > > without: > total_wakeups: 44306 > avg_wakeup_latency (ns): 36784 > min_wakeup_latency (ns): 0 > max_wakeup_latency (ns): 9378852 > > with: > total_wakeups: 43836 > avg_wakeup_latency (ns): 67607 > min_wakeup_latency (ns): 0 > max_wakeup_latency (ns): 8983036 > > 2) perf record -a -e sched:sched_switch -e sched:sched_wakeup sleep 10 > > without: > total_wakeups: 13195 > avg_wakeup_latency (ns): 48484 > min_wakeup_latency (ns): 0 > max_wakeup_latency (ns): 8722497 > > with: > total_wakeups: 14106 > avg_wakeup_latency (ns): 92532 > min_wakeup_latency (ns): 20 > max_wakeup_latency (ns): 5642393 > > So the avg_wakeup_latency nearly doubled with your patch, while the > max_wakeup_latency is lowered by a good amount.
When you say with/without, does that mean enabled/disabled, or patched/virgin and/or cgroups/nocgroups?
-Mike
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