diff options
Diffstat (limited to 'kernel/sched_fair.c')
| -rw-r--r-- | kernel/sched_fair.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 0990b20fdcf..5c15d8ae92c 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -739,6 +739,17 @@ set_next_entity(struct cfs_rq *cfs_rq, struct sched_entity *se) update_stats_wait_end(cfs_rq, se); update_stats_curr_start(cfs_rq, se); set_cfs_rq_curr(cfs_rq, se); +#ifdef CONFIG_SCHEDSTATS + /* + * Track our maximum slice length, if the CPU's load is at + * least twice that of our own weight (i.e. dont track it + * when there are only lesser-weight tasks around): + */ + if (rq_of(cfs_rq)->ls.load.weight >= 2*se->load.weight) { + se->slice_max = max(se->slice_max, + se->sum_exec_runtime - se->prev_sum_exec_runtime); + } +#endif se->prev_sum_exec_runtime = se->sum_exec_runtime; } |