From f1d239f73200a5803a89e5929fb3abc1596b7589 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 27 Jun 2008 13:41:38 +0200 Subject: 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 Cc: Srivatsa Vaddagiri Cc: Mike Galbraith Signed-off-by: Ingo Molnar --- kernel/sched.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'kernel/sched.c') diff --git a/kernel/sched.c b/kernel/sched.c index 01d3e51b711..7613f69f097 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; -- cgit v1.2.3-70-g09d2