Re: Differences between FreeBSD and Linux system call mechanism

Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 4 Sep 1998 00:46:52 +0100 (BST)


> > 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

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.altern.org/andrebalsa/doc/lkml-faq.html