diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2008-06-27 13:41:38 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-27 14:31:47 +0200 |
| commit | f1d239f73200a5803a89e5929fb3abc1596b7589 (patch) | |
| tree | 33c59b6f2621284af91825ea7fbab718ffe65ade /kernel/sched.c | |
| parent | sched: correct wakeup weight calculations (diff) | |
| download | linux-f1d239f73200a5803a89e5929fb3abc1596b7589.tar.xz linux-f1d239f73200a5803a89e5929fb3abc1596b7589.zip | |
sched: incremental effective_load()
Increase the accuracy of the effective_load values.
Not only consider the current increment (as per the attempted wakeup), but
also consider the delta between when we last adjusted the shares and the
current situation.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Cc: Mike Galbraith <efault@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched.c')
| -rw-r--r-- | kernel/sched.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 01d3e51b7116..7613f69f0978 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -427,6 +427,11 @@ struct cfs_rq { * this cpu's part of tg->shares */ unsigned long shares; + + /* + * load.weight at the time we set shares + */ + unsigned long rq_weight; #endif #endif }; @@ -1527,6 +1532,7 @@ __update_group_shares_cpu(struct task_group *tg, int cpu, * record the actual number of shares, not the boosted amount. */ tg->cfs_rq[cpu]->shares = boost ? 0 : shares; + tg->cfs_rq[cpu]->rq_weight = rq_weight; if (shares < MIN_SHARES) shares = MIN_SHARES; |