[GIT PULL v2] Update LZO compression
From: Johannes Stezenbach <hidden>
Date: 2012-08-22 10:34:57
Also in:
linux-btrfs, lkml
From: Johannes Stezenbach <hidden>
Date: 2012-08-22 10:34:57
Also in:
linux-btrfs, lkml
On Tue, Aug 21, 2012 at 05:21:50PM +0200, Markus F.X.J. Oberhumer wrote:
as suggested on the mailing list I have converted the updated LZO code into git, so please pull my "lzo-update" branch from
...
[ Changes in v2: Optimize code for CPUs with inefficient unaligned access => significant speed increase on ARM ]
I can confirm that this new code runs at the same speed as the current lzo code in the Linux kernel on my ARM926EJ-S based platform. I only tested decompression, using the attached hacky userspace code. # time ./lzo-bench/old/unlzop <lzoimage >/dev/null real 0m 0.29s # time ./lzo-bench/new/unlzop <lzoimage >/dev/null real 0m 0.29s (where lzoimage is a Linux Image compressed with lzop) So, from my side there are no more objections. Thanks for doing this work, Markus. Johannes -------------- next part -------------- A non-text attachment was scrubbed... Name: lzo-bench.tar.gz Type: application/octet-stream Size: 35783 bytes Desc: not available URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20120822/ee82ee5e/attachment-0001.obj>