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| author | Ingo Molnar <mingo@elte.hu> | 2008-05-29 11:28:57 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-05-29 11:28:57 +0200 |
| commit | 6363ca57c76b7b83639ca8c83fc285fa26a7880e (patch) | |
| tree | b8630b4af286409efdd648920a546fae24d4db88 /include | |
| parent | 4285f594f84d1f0641fc962d00e6638dec4a19c4 (diff) | |
| download | op-kernel-dev-6363ca57c76b7b83639ca8c83fc285fa26a7880e.zip op-kernel-dev-6363ca57c76b7b83639ca8c83fc285fa26a7880e.tar.gz | |
revert ("sched: fair-group: SMP-nice for group scheduling")
Yanmin Zhang reported:
Comparing with 2.6.25, volanoMark has big regression with kernel 2.6.26-rc1.
It's about 50% on my 8-core stoakley, 16-core tigerton, and Itanium Montecito.
With bisect, I located the following patch:
| 18d95a2832c1392a2d63227a7a6d433cb9f2037e is first bad commit
| commit 18d95a2832c1392a2d63227a7a6d433cb9f2037e
| Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
| Date: Sat Apr 19 19:45:00 2008 +0200
|
| sched: fair-group: SMP-nice for group scheduling
Revert it so that we get v2.6.25 behavior.
Bisected-by: Yanmin Zhang <yanmin_zhang@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/sched.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 5395a61..8a88849 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -766,7 +766,6 @@ struct sched_domain { struct sched_domain *child; /* bottom domain must be null terminated */ struct sched_group *groups; /* the balancing groups of the domain */ cpumask_t span; /* span of all CPUs in this domain */ - int first_cpu; /* cache of the first cpu in this domain */ unsigned long min_interval; /* Minimum balance interval ms */ unsigned long max_interval; /* Maximum balance interval ms */ unsigned int busy_factor; /* less balancing by factor if busy */ |
