Re: Differences between FreeBSD and Linux system call mechanism
Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 4 Sep 1998 01:18:19 +0100 (BST)
> > 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.
Alan
-
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