VTIM_real vs VTIM_mono / double vs uint64_t

[Poul-Henning Kamp]

--------
In message <5706445A.3060506 at schokola.de>, Nils Goroll writes:
>Hi,
>
>@Martin, thanks for the VDSO explanations - I knew about this but was not
>up-to-date: because I had once worked on an issue where Linux _did_ syscall for
>clock_gettime, I was surprised to see that my machine doesn't. But my remark on
>this list was superfluous.
>
>On 07/04/16 12:16, Poul-Henning Kamp wrote:
>>> Will still be some
>>> memory reads though, so something based around the Intel in-chip clock
>> 
>> There is no such thing as the "Intel in-chip clock".
>
>I think martin was referring to the TSC.

I think so too, but I wanted to make it absolutely clear that it is
not a "in-chip clock" :-)


-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
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