Re: Alpha Timekeeping - Hardware Questions

Richard Henderson (rth@twiddle.net)
Fri, 14 May 1999 11:41:45 -0700

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On Fri, May 14, 1999 at 02:48:50AM -0700, Bruce Elliott wrote:
> The point of this long harangue is that Alpha kernels currently use the
> cycle counter for timekeeping. If SMP Alpha clocks are unsynchronized,
> this is a Bad Thing.

In the 2.2.8 patch I just posted, I included the settimeofday fix
forwarded from Thorsten, and for SMP am not including the rpcc bits
in the [sg]ettimeofday results.

I think I'm back to, for SMP, using the rpcc only for lost interrupt
estimation. Please look over what's there and send me any corrections
as necessary.

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Next message: Delman Lee: "2.2.[89] SMP won't boot: lost interrupt"
Previous message: Android: "CD-RW"
In reply to: Jakub Jelinek: "Re: [PATCH][2.3.0] Read-write locks instead semaphores on UTS structures"