crc32() optimization

Wolfgang Denk wd at
Sun Nov 10 17:41:37 EST 2002

In message <001301c28909$743f1f40$0200a8c0 at> you wrote:
> I could not wait until tomorrow, so I did it now instead.
> The result was worse. The best I got was 7% improvement.
> I tried 16, 8, 6 and 4 as unrolling steps.

Makes no sense to me.  Should  be  at  least  as  efficient  as  your
original code (marginally better).

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at
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