Messages in this thread | | | Date | Mon, 30 Jan 2006 15:52:57 -0500 | From | Prarit Bhargava <> | Subject | Re: boot-time slowdown for measure_migration_cost |
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Prarit Bhargava wrote: > > Tony, > >> >> >> Might it be wise to see whether the 2% variation that I saw can be >> repeated on some other architecture? Can someone else try >> this patch and post the before/after values for migration_cost from >> dmesg? >>
Whoops. Let's try that again:
Pristine (with build_sched_domains measurement):
[ 9.942253] Brought up 64 CPUs [ 9.942904] Total of 64 processors activated (143654.91 BogoMIPS). [ 9.943995] build_sched_domains: start [ 32.108439] migration_cost=0,32232,39021 [ 37.894391] build_sched_domains: end
Patched (with build_sched_domains measurement):
[ 9.942267] Brought up 64 CPUs [ 9.942930] Total of 64 processors activated (143654.91 BogoMIPS). [ 9.944032] build_sched_domains: beginmigration_cost=0,31854,38739 [ 23.868304] build_sched_domains: end
P.
>
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