Re: Intel P6 vs P7 system call performance

Ulrich Drepper
2002-12-17T19:12:03Z

Linus Torvalds wrote:

> In the meantime, I do agree with you that the TLS approach should work
> too, and might be better. It will allow all six arguments to be used if we
> just find a good calling conventions

If you push out the AT_* patch I'll hack the glibc bits (probably the
TLS variant). Won't take too long, you'll get results this afternoon.

What about AMD's instruction? Is it as flawed as sysenter? If not and
%ebp is available I really should use the TLS method.

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