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authorIngo Molnar <mingo@elte.hu>2008-05-29 11:28:57 +0200
committerIngo Molnar <mingo@elte.hu>2008-05-29 11:28:57 +0200
commit6363ca57c76b7b83639ca8c83fc285fa26a7880e (patch)
treeb8630b4af286409efdd648920a546fae24d4db88 /include
parent4285f594f84d1f0641fc962d00e6638dec4a19c4 (diff)
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.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5395a6176f4b..8a888499954e 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 */