Re: Intel P6 vs P7 system call performance

Matti Aarnio (matti.aarnio@zmailer.org)
Tue, 17 Dec 2002 22:07:49 +0200


(cutting down To:/Cc:)

On Tue, Dec 17, 2002 at 11:43:57AM -0800, H. Peter Anvin wrote:
> Linus Torvalds wrote:
> > The thing is, gettimeofday() isn't _that_ special. It's just not worth a
> > vsyscall of it's own, I feel. Where do you stop? Do we do getpid() too?
> > Just because we can?
>
> getpid() could be implemented in userspace, but not via vsyscalls
> (instead it could be passed in the ELF data area at process start.)

After fork() or clone() ?
If we had only spawn(), and some separate way to start threads...

...
> -hpa

/Matti Aarnio
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/