On Thu, Jan 21, 2021 at 07:04:52PM +0800, Huaixin Chang wrote: > Introduce statistics exports for the burstable cfs bandwidth > controller. > > The following exports are included: > > current_bw: current runtime in global pool > nr_burst: number of periods bandwidth burst occurs > burst_time: cumulative wall-time that any cpus has > used above quota in respective periods > > Signed-off-by: Huaixin Chang <changhuai...@linux.alibaba.com> > Signed-off-by: Shanpei Chen <shanp...@linux.alibaba.com>
Consistently fail. > --- > kernel/sched/core.c | 6 ++++++ > kernel/sched/fair.c | 12 +++++++++++- > kernel/sched/sched.h | 3 +++ > 3 files changed, 20 insertions(+), 1 deletion(-) > > diff --git a/kernel/sched/core.c b/kernel/sched/core.c > index fecf0f05ef0c..80ca763ca492 100644 > --- a/kernel/sched/core.c > +++ b/kernel/sched/core.c > @@ -7986,6 +7986,8 @@ static int tg_set_cfs_bandwidth(struct task_group *tg, > u64 period, u64 quota, > cfs_b->runtime = min(max_cfs_runtime, cfs_b->runtime); > } > > + cfs_b->previous_runtime = cfs_b->runtime; > + > /* Restart the period timer (if active) to handle new period expiry: */ > if (runtime_enabled) > start_cfs_bandwidth(cfs_b, 1); > @@ -8234,6 +8236,10 @@ static int cpu_cfs_stat_show(struct seq_file *sf, void > *v) > seq_printf(sf, "wait_sum %llu\n", ws); > } > > + seq_printf(sf, "current_bw %llu\n", cfs_b->runtime); > + seq_printf(sf, "nr_burst %d\n", cfs_b->nr_burst); > + seq_printf(sf, "burst_time %llu\n", cfs_b->burst_time); > + > return 0; > } > #endif /* CONFIG_CFS_BANDWIDTH */ This is ABI; and the Changelog has no justification what so ever...
