On Apr18, 2013, at 19:04 , Jeff Davis <pg...@j-davis.com> wrote:
> On Wed, 2013-04-17 at 20:21 -0400, Greg Smith wrote:
>> -Original checksum feature used Fletcher checksums.  Its main problems, 
>> to quote wikipedia, include that it "cannot distinguish between blocks 
>> of all 0 bits and blocks of all 1 bits".
> That is fairly easy to fix by using a different modulus: 251 vs 255.

At the expense of a drastic performance hit though, no? Modulus operations
aren't exactly cheap.

best regards,
Florian Pflug

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