Re: Intel P6 vs P7 system call performance

[H. Peter Anvin]

Richard B. Johnson wrote:
> The number of CPU clocks necessary to make the 'far' or
> full-pointer call by pushing the segment register, the offset,
> then issuing a 'lret' is 33 clocks on a Pentium II.
>
> longcall clocks = 46
> call clocks = 13
> actual full-pointer call clocks = 33

That's not a call, that's a jump.  Comparing it to a call instruction is
meaningless.

	-hpa