[sldev] Cache speed experiment & results...

[Robin Cornelius]

Robin Cornelius wrote:
> darien_caldwell at comcast.net wrote:
>> This reminds me of something I once pondered. Do you think the UUIDs are random enough, that one could rely on a comparison of only the first 8 digits as a sort of quick and dirty identification? What would the chance be of a false match in such a case?
>>
> 
> Well for the 1st digit there is a 1/16 chance of a hit, for 2 digits its
> 1/256 chance for the Nth digit its a 1/(16^N) chance, so for your
> specific question its 1/4294967296 (1 in about 4.2 billion).

Oh assuming a perfect random (white) distribution of cause, any error,
grouping, bais or offset throws this to the dogs.


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