Testing on old hardware is flawed
Posted Aug 26, 2004 11:47 UTC (Thu) by hensema
In reply to: Testing on old hardware is flawed
Parent article: Looking at reiser4
No, what I'm saying is that a disk is dog slow compared to a CPU. It pays to invest some extra CPU cycles to prevent unnescesary disk seeks. Packing data more tightly on disk helps too.
On a slow CPU with a relatively fast disk this doesn't work. Here you can affort to do some extra seeks or waste some space on disk. Therefore, reiser4 is optimized for current and future systems and won't give optimal performance on older systems like the one used for the little lwn.net benchmark.
Also, CPU usage is generally part of a good benchmark. It's even part of really bad ones, like untarring a kernel :-)
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