From: Pavel Begunkov <asml.silence@gmail.com>
To: Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org, Omar Sandoval <osandov@osandov.com>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH v2 for-next 0/4] optimise sbitmap deferred clear
Date: Sun, 22 Nov 2020 15:35:44 +0000 [thread overview]
Message-ID: <cover.1606058975.git.asml.silence@gmail.com> (raw)
sbitmap takes away some cycles for my tag-deficient test, removal of
locking in sbitmap_deferred_clear() gives +~1% throuhput.
[1/4] and [4/4] are simple, it'd be great if someone could double
check for ordering issues for other two patches.
v2: add 3rd (CAS -> atomic and) and 4th patches
Pavel Begunkov (4):
sbitmap: optimise sbitmap_deferred_clear()
sbitmap: remove swap_lock
sbitmap: replace CAS with atomic and
sbitmap: simplify wrap check
include/linux/sbitmap.h | 5 -----
lib/sbitmap.c | 44 +++++++++++++++++------------------------
2 files changed, 18 insertions(+), 31 deletions(-)
--
2.24.0
next reply other threads:[~2020-11-22 15:39 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-22 15:35 Pavel Begunkov [this message]
2020-11-22 15:35 ` [PATCH v2 1/4] sbitmap: optimise sbitmap_deferred_clear() Pavel Begunkov
2020-11-24 14:11 ` John Garry
2020-11-24 15:01 ` Pavel Begunkov
2020-11-22 15:35 ` [PATCH v2 2/4] sbitmap: remove swap_lock Pavel Begunkov
2020-11-24 14:22 ` John Garry
2020-11-24 14:43 ` Pavel Begunkov
2020-11-26 2:46 ` Ming Lei
2020-11-26 13:44 ` Pavel Begunkov
2020-11-27 2:06 ` Ming Lei
2020-11-22 15:35 ` [PATCH v2 3/4] sbitmap: replace CAS with atomic and Pavel Begunkov
2020-11-22 15:35 ` [PATCH v2 4/4] sbitmap: simplify wrap check Pavel Begunkov
2020-12-08 0:13 ` [PATCH v2 for-next 0/4] optimise sbitmap deferred clear Jens Axboe
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