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| author | Pavel Begunkov <asml.silence@gmail.com> | 2019-12-28 14:13:03 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-01-21 03:04:02 +0300 |
| commit | 2b85edfc0c90efc68dea3d665bb4111bf0694e05 (patch) | |
| tree | 9e5cb950fa5d4fbafd3981e569ef3d9c856cf127 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 4e5ef02317b12e2ed3d604281ffb6b75261f7612 (diff) | |
| download | linux-2b85edfc0c90efc68dea3d665bb4111bf0694e05.tar.xz | |
io_uring: batch getting pcpu references
percpu_ref_tryget() has its own overhead. Instead getting a reference
for each request, grab a bunch once per io_submit_sqes().
~5% throughput boost for a "submit and wait 128 nops" benchmark.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
__io_req_free_empty() -> __io_req_do_free()
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions