diff options
| author | Pavel Begunkov <[email protected]> | 2022-11-02 15:18:22 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2022-11-16 09:44:26 -0700 |
| commit | b99182c501c3dedeba4c9e6c92a60df1a2fee119 (patch) | |
| tree | b2ef978e4ea4f3e7ea0ea551b5343afb95fc655d /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | f25cf75a452150c243f74ab1f1836822137d5d2c (diff) | |
bio: add pcpu caching for non-polling bio_put
This patch extends REQ_ALLOC_CACHE to IRQ completions, whenever
currently it's only limited to iopoll. Instead of guarding the list with
irq toggling on alloc, which is expensive, it keeps an additional
irq-safe list from which bios are spliced in batches to ammortise
overhead. On the put side it toggles irqs, but in many cases they're
already disabled and so cheap.
Signed-off-by: Pavel Begunkov <[email protected]>
Link: https://lore.kernel.org/r/c2306de96b900ab9264f4428ec37768ddcf0da36.1667384020.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions