| commit | a2d477778e82a60a0b7114cefdb70aa43af28782 | |
| author | Balbir Singh <balbir@linux.vnet.ibm.com> | |
| Wed, 12 Nov 2008 10:49:00 +0000 (12 16:19 +0530) | ||
| committer | Ingo Molnar <mingo@elte.hu> | |
| Wed, 12 Nov 2008 11:33:50 +0000 (12 12:33 +0100) | ||
| tree | 52fb05ee2d63765ddddcf4a2e06f310510607735 | treesnapshot (tar.gz zip) |
| parent | f21f237cf55494c3a4209de323281a3b0528da10 | commitdiff |
sched: fix stale value in average load per task
Impact: fix load balancer load average calculation accuracy
cpu_avg_load_per_task() returns a stale value when nr_running is 0.
It returns an older stale (caculated when nr_running was non zero) value.
This patch returns and sets rq->avg_load_per_task to zero when nr_running
is 0.
Compile and boot tested on a x86_64 box.
Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Impact: fix load balancer load average calculation accuracy
cpu_avg_load_per_task() returns a stale value when nr_running is 0.
It returns an older stale (caculated when nr_running was non zero) value.
This patch returns and sets rq->avg_load_per_task to zero when nr_running
is 0.
Compile and boot tested on a x86_64 box.
Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| kernel/sched.c | diffblobblamehistory |