Re: Intel P6 vs P7 system call performance

From: H. Peter Anvin (hpa@zytor.com)
Date: Fri Dec 27 2002 - 21:05:35 EST


Linus Torvalds wrote:
> Note that that was true even before this patch - you cannot use glibc
> without having the default DS/ES settings anyway. I not only checked with
> Uli, but gcc simply cannot generate code that has different segments for
> stack and data, so if you have non-flat segments you had to either

More importantly, SYSENTER hardcodes flat layout.

        -hpa

-
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/



This archive was generated by hypermail 2b29 : Tue Dec 31 2002 - 22:00:11 EST