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SubjectRe: Differences between FreeBSD and Linux system call mechanism
> > 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
> What's a null system call; one that returns ENOSYS?

Most folk use getppid() which isnt quite a null syscall but does mean it
wont have had the return magically cached.


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