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Date: Tue, 13 Mar 2012 09:59:54 +0100
From: =?iso-8859-1?Q?Bj=F6rn?= Stenberg <bjst@enea.com>
To: McClintock Matthew-B29882 <B29882@freescale.com>
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Cc: "poky@yoctoproject.org" <poky@yoctoproject.org>
Subject: Re: [PATCH] Add pigz as gzip-native alternative.
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McClintock Matthew-B29882 wrote:
> I thought about doing this - can you share any performance numbers?

pigz seems to scale fairly well. I compared the time it takes to compress the final rootfs tarball in do_rootfs for one of my images. 

gzip:

real    1m33.523s
user    1m33.146s
sys     0m0.368s

pigz:

real    0m2.239s
user    1m40.554s
sys     0m0.716s

This is on a 64-core machine.

-- 
Björn