Re: No 100 HZ timer !

[Andi Kleen]

On Tue, Apr 10, 2001 at 02:45:15PM -0400, Stephen D. Williams wrote:
> When this is rewritten, I would strongly suggest that we find a way to
> make 'gettimeofday' nearly free.  Certain applications need to use this
> frequently while still being portable.  One solution when you do have
> clock ticks is a read-only mapped Int.  Another cheap solution is
> library assembly that adds a cycle clock delta since last system call to
> a 'gettimeofday' value set on every system call return.

The upcoming x86-64 port supports vsyscalls for just that purpose.

-Andi