From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Minchan Kim <minchan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Subject: [PATCH 0/2] zram: switch to per-cpu compression streams
Date: Fri, 29 Apr 2016 01:17:08 +0900 [thread overview]
Message-ID: <1461860230-849-1-git-send-email-sergey.senozhatsky@gmail.com> (raw)
Hello,
The patchset drops idle compression streams list from zcomp, so
zram now is using per-cpu compression streams. This removes two
spin_lock()/spin_unlock() calls from the write path and prevents
write OP from being preempted with active compression stream,
which improves performance (according to the tests, see commit
messages) and simplifies the code.
against next-20160428
Sergey Senozhatsky (2):
zsmalloc: require GFP in zs_malloc()
zram: user per-cpu compression streams
drivers/block/zram/zcomp.c | 293 ++++++++++++------------------------------
drivers/block/zram/zcomp.h | 12 +-
drivers/block/zram/zram_drv.c | 34 ++++-
include/linux/zsmalloc.h | 2 +-
mm/zsmalloc.c | 15 +--
5 files changed, 119 insertions(+), 237 deletions(-)
--
2.8.0
next reply other threads:[~2016-04-28 15:20 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-28 16:17 Sergey Senozhatsky [this message]
2016-04-28 16:17 ` [PATCH 1/2] zsmalloc: require GFP in zs_malloc() Sergey Senozhatsky
2016-04-29 5:44 ` Minchan Kim
2016-04-29 7:30 ` Sergey Senozhatsky
2016-04-28 16:17 ` [PATCH 2/2] zram: user per-cpu compression streams Sergey Senozhatsky
2016-05-02 6:23 ` Minchan Kim
2016-05-02 7:25 ` Sergey Senozhatsky
2016-05-02 8:06 ` Sergey Senozhatsky
2016-05-03 5:23 ` Minchan Kim
2016-05-03 5:40 ` Minchan Kim
2016-05-03 5:57 ` Sergey Senozhatsky
2016-05-03 6:19 ` Minchan Kim
2016-05-03 7:01 ` Sergey Senozhatsky
2016-05-03 5:44 ` Sergey Senozhatsky
2016-05-02 8:28 ` Minchan Kim
2016-05-02 9:21 ` Sergey Senozhatsky
2016-05-03 1:40 ` Minchan Kim
2016-05-03 1:53 ` Sergey Senozhatsky
2016-05-03 2:20 ` Minchan Kim
2016-05-03 2:30 ` Sergey Senozhatsky
2016-05-03 4:29 ` Sergey Senozhatsky
2016-05-03 5:03 ` Minchan Kim
2016-05-03 6:53 ` Sergey Senozhatsky
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