Re: Intel P6 vs P7 system call performance
H. Peter Anvin (hpa@zytor.com)
Fri, 27 Dec 2002 18:05:35 -0800
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
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