Messages in this thread | | | From | (Alan Cox) | Subject | Re: Differences between FreeBSD and Linux system call mechanism | Date | Fri, 4 Sep 1998 00:46:52 +0100 (BST) |
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> > lmbench is your friend. Im sure Larry McVoy can provide > > LMBench is a set of microbenchmarks that aren't very predictive of > real-world load characteristics. The best predictor of real-world > load characteristics is previous measurements in the real-world > under identical load (ie: if it too 500 cycles yesterday, it will > take 500 cycles today).
lmbench gives very precise accurate performance figures for the things it benches - in this case things like null syscall and the affects of the kernel cache footprint.
When you are discussing syscall timing its syscall timing microbenchmark is not suprisingly very accurate
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