linux-kernel - re: [PATCH] PM / Hibernate: Improve performance of LZO/plain hibernation, checksum image

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Date:	Tue, 27 Dec 2011 20:27:05 +0800
From:	Barry Song <21cnbao@...il.com>
To:	bojan@...ursive.com, rjw@...k.pl
Cc:	linux-pm@...ts.linux-foundation.org,
	LKML <linux-kernel@...r.kernel.org>,
	DL-SHA-WorkGroupLinux <workgroup.linux@....com>
Subject: re: [PATCH] PM / Hibernate: Improve performance of LZO/plain
 hibernation, checksum image

> Use threads for LZO compression/decompression on hibernate/thaw.
> Improve buffering on hibernate/thaw.
> Calculate/verify CRC32 of the image pages on hibernate/thaw.

> In my testing, this improved write/read speed by a factor of about two.

> Signed-off-by: Bojan Smojver <bojan@...ursive.com>
> Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>

hi Bojan,
this patch is definitely great!
any plan to write the same patch for decompress and restore? i think
that is probably more important than compression and hibernation to
improve bootup speed.

Thanks
barry
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