Re: 2.2.0pre1 OOPS on boot.

H. Peter Anvin (hpa@transmeta.com)
31 Dec 1998 07:19:48 GMT

Followup to: <Pine.LNX.3.95.981230105754.6194F-100000@penguin.transmeta.com>
By author: Linus Torvalds <torvalds@transmeta.com>
In newsgroup: linux.dev.kernel
>
> The "rdtsc" thing _is_ needed even for UP systems.
>
> Look at the code generated for do_gettimeofday() some time - it's a
> worthwhile optimization to do statically.
>
> (And if you wonder why I care about gettimeofday(), just look at the
> system call distribution for a lot of programs, including most X
> programs).
>
> As I mentioned in my email, it may be a valid thing to expand the choices
> a bit (ie add a choice between i486 and i586), but the static "rdtsc"
> thing definitely stays.
>

Not only that, but it is friggin' vital for a time server.

-hpa

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