Thanks Ulrich and Jon [LWN.net]

Thanks Ulrich and Jon

Posted Oct 1, 2007 19:31 UTC (Mon) by nix (subscriber, #2304)
In reply to: Thanks Ulrich and Jon by bwarren
Parent article: Memory part 2: CPU caches

I found the simplicity of the necessary testcases particularly
interesting. Over and over again I was kicking myself: I've often wanted
to know the sizes of the various levels of cache, for instance, and never
once thought of running a trivial little benchmark.

(Of course *interpreting* the results of that benchmark requires all sorts
of knowledge which I didn't have. Thanks to this article I am not so
clueless now.)

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Such benchmarks were known for years!

Posted Oct 1, 2007 21:02 UTC (Mon) by khim (subscriber, #9252) [Link]

For example on Digit-Life:

So detailed investigations of CPU internals with simple benchmarks are not so interesting - the detailed explanations related to programming should be...

Such benchmarks were known for years!

Posted Oct 2, 2007 20:48 UTC (Tue) by nix (subscriber, #2304) [Link]

Yeah, they were known for years (everything Ulrich talks about here was
known for years; it's a human creation, after all, not a discovery.)

But *I* didn't know it. Thanks to this article, now I do. (The later
chapters promise to get even more interesting, as you said.)

(And those links look really cool. Thanks.)