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| author | Baolin Wang <baolin.wang@linux.alibaba.com> | 2020-12-10 18:56:44 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-12-17 07:55:44 -0700 |
| commit | 76efc1c770968d6c786e5340029f8005ed29b2a5 (patch) | |
| tree | 42c3265976e755e721485bee0474ed8bb9971e7c | |
| parent | 1aba169e770911fb2afa63eb859883c4de2191e3 (diff) | |
| download | linux-76efc1c770968d6c786e5340029f8005ed29b2a5.tar.bz2 | |
blk-iocost: Add iocg idle state tracepoint
It will be helpful to trace the iocg's whole state, including active and
idle state. And we can easily expand the original iocost_iocg_activate
trace event to support a state trace class, including active and idle
state tracing.
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/blk-iocost.c | 3 | ||||
| -rw-r--r-- | include/trace/events/iocost.h | 16 |
2 files changed, 18 insertions, 1 deletions
diff --git a/block/blk-iocost.c b/block/blk-iocost.c index ffa418c0dcb1..ac6078a34939 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -2185,6 +2185,9 @@ static int ioc_check_iocgs(struct ioc *ioc, struct ioc_now *now) WEIGHT_ONE); } + TRACE_IOCG_PATH(iocg_idle, iocg, now, + atomic64_read(&iocg->active_period), + atomic64_read(&ioc->cur_period), vtime); __propagate_weights(iocg, 0, 0, false, now); list_del_init(&iocg->active_list); } diff --git a/include/trace/events/iocost.h b/include/trace/events/iocost.h index 0b6869980ba2..e282ce02fa2d 100644 --- a/include/trace/events/iocost.h +++ b/include/trace/events/iocost.h @@ -11,7 +11,7 @@ struct ioc_gq; #include <linux/tracepoint.h> -TRACE_EVENT(iocost_iocg_activate, +DECLARE_EVENT_CLASS(iocost_iocg_state, TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now, u64 last_period, u64 cur_period, u64 vtime), @@ -59,6 +59,20 @@ TRACE_EVENT(iocost_iocg_activate, ) ); +DEFINE_EVENT(iocost_iocg_state, iocost_iocg_activate, + TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now, + u64 last_period, u64 cur_period, u64 vtime), + + TP_ARGS(iocg, path, now, last_period, cur_period, vtime) +); + +DEFINE_EVENT(iocost_iocg_state, iocost_iocg_idle, + TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now, + u64 last_period, u64 cur_period, u64 vtime), + + TP_ARGS(iocg, path, now, last_period, cur_period, vtime) +); + DECLARE_EVENT_CLASS(iocg_inuse_update, TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now, |