Re: buggy raid checksumming selection?

From: Ed Tomlinson
Date: Fri Jan 23 2004 - 10:19:48 EST


On January 23, 2004 09:13 am, Dave Jones wrote:
> On Fri, Jan 23, 2004 at 11:40:53AM -0200, Evaldo Gardenali wrote:
> > Uhh. correct me if I am wrong, but shouldnt it select the fastest
> > algorithm?
>
> No, if it can choose a function which avoids polluting the cache over
> one that doesn't, it will. Even if that means slightly less raw throughput

In this case it is half the throughput. When is it reasonable to use the
fast method? If never, why even test it?

Ed
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