[U-Boot] [PATCH RFC] zlib: Optimize decompression
Peter Korsgaard
jacmet at sunsite.dk
Thu Nov 19 15:07:12 CET 2009
>>>>> "Joakim" == Joakim Tjernlund <Joakim.Tjernlund at transmode.se> writes:
Joakim> This patch optimizes the direct copy procedure.
Joakim> Uses get_unaligned() but only in one place.
Joakim> The copy loop just above this one can also use this
Joakim> optimization, but I havn't done so as I have not tested if it
Joakim> is a win there too.
Joakim> On my MPC8321 this is about 17% faster on my JFFS2 root FS
Joakim> than the original. No speed test has been performed in u-boot.
On a mpc8347 board it's ~12% faster at decompressing the uImage (165ms).
Joakim> Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund at transmode.se>
Acked-by: Peter Korsgaard <jacmet at sunsite.dk>
--
Bye, Peter Korsgaard
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