diff options
| author | Dmitrii Dolgov <9erthalion6@gmail.com> | 2019-10-15 19:02:01 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-10-29 10:24:18 -0600 |
| commit | c826bd7a743f275e2b68c16d595534063b400deb (patch) | |
| tree | 63792219fa58ed7b07695ae027a6ef44b8e17c62 /include/Kbuild | |
| parent | 11365043e5271fea4c92189a976833da477a3a44 (diff) | |
io_uring: add set of tracing events
To trace io_uring activity one can get an information from workqueue and
io trace events, but looks like some parts could be hard to identify via
this approach. Making what happens inside io_uring more transparent is
important to be able to reason about many aspects of it, hence introduce
the set of tracing events.
All such events could be roughly divided into two categories:
* those, that are helping to understand correctness (from both kernel
and an application point of view). E.g. a ring creation, file
registration, or waiting for available CQE. Proposed approach is to
get a pointer to an original structure of interest (ring context, or
request), and then find relevant events. io_uring_queue_async_work
also exposes a pointer to work_struct, to be able to track down
corresponding workqueue events.
* those, that provide performance related information. Mostly it's about
events that change the flow of requests, e.g. whether an async work
was queued, or delayed due to some dependencies. Another important
case is how io_uring optimizations (e.g. registered files) are
utilized.
Signed-off-by: Dmitrii Dolgov <9erthalion6@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/Kbuild')
| -rw-r--r-- | include/Kbuild | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/Kbuild b/include/Kbuild index ffba79483cc5..61b66725d259 100644 --- a/include/Kbuild +++ b/include/Kbuild @@ -1028,6 +1028,7 @@ header-test- += trace/events/fsi_master_gpio.h header-test- += trace/events/huge_memory.h header-test- += trace/events/ib_mad.h header-test- += trace/events/ib_umad.h +header-test- += trace/events/io_uring.h header-test- += trace/events/iscsi.h header-test- += trace/events/jbd2.h header-test- += trace/events/kvm.h |