Re: [RFC] LZO de/compression support - take 4

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Hi Richard,

On 5/25/07, Richard Purdie <[email protected]> wrote:
On Fri, 2007-05-25 at 17:15 +0530, Nitin Gupta wrote:
> Richard, can you please provide perf. results for this patch also?
> Also, can you please mail back latest version of your LZO patch? In
> meantime, I will try to include benchmarking support to the
> 'compress-test' module.

This version is 15% slower at decompression and about equal on
compression.


If you don't mind, can you please try patch attached now? I have now
also rolled back that cpu_to_le16() change as Satyam suggested. I see
no other reason for this perf. loss as I made no other change!

Also, can you please verify if you are comparing your _safe_ version
with this patch? This patch does not include unsafe version and the
safe one is simply called lzo1x_decompress().


I am however still strongly of the opinion that we should just use the
version in -mm (which is my latest version).


I love this cleaned-up patch just sooo much! :)
Anyhow, if we can spend just small time scanning through these ~500
LOC to find reasons for any perf. loss, we will gain a lot!

Thanks,
Nitin

Attachment: patch_lzo_2.6.22-rc2_richard_test.bz2
Description: BZip2 compressed data


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