Thread (1 message) 1 message, 1 author, 2012-08-22

[GIT PULL v2] Update LZO compression

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
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