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io_uring: add trace event for running task work

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This is useful for investigating if task_work is batching

Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220622134028.2013417-8-dylany@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Dylan Yudaken 2022-06-22 06:40:27 -07:00 committed by Jens Axboe
parent 3a0c037b0e
commit eccd880185
1 changed files with 30 additions and 0 deletions
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30
include/trace/events/io_uring.h
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@ -600,6 +600,36 @@ TRACE_EVENT(io_uring_cqe_overflow,
__entry->cflags, __entry->ocqe)
);
/*
* io_uring_task_work_run - ran task work
*
* @tctx: pointer to a io_uring_task
* @count: how many functions it ran
* @loops: how many loops it ran
*
*/
TRACE_EVENT(io_uring_task_work_run,
TP_PROTO(void *tctx, unsigned int count, unsigned int loops),
TP_ARGS(tctx, count, loops),
TP_STRUCT__entry (
__field( void *, tctx )
__field( unsigned int, count )
__field( unsigned int, loops )
),
TP_fast_assign(
__entry->tctx = tctx;
__entry->count = count;
__entry->loops = loops;
),
TP_printk("tctx %p, count %u, loops %u",
__entry->tctx, __entry->count, __entry->loops)
);
#endif /* _TRACE_IO_URING_H */
/* This part must be outside protection */