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SubjectRe: 2.4.23aa2 (bugfixes and important VM improvements for the high end)
On Wed, Mar 10, 2004 at 02:21:25PM +0100, Andi Kleen wrote:
> On Fri, 5 Mar 2004 17:23:19 +0100
> Ingo Molnar <> wrote:
> > > [...] Only drawback is that if a timer tick is delayed for too long it
> > > won't fix that, but I guess that's reasonable for a 1s resolution.
> >
> > what do you mean by delayed?
> Normal gettimeofday can "fix" lost timer ticks because it computes the true
> offset to the last timer interrupt using the TSC or other means. xtime
> is always the last tick without any correction. If it got delayed too much
> the result will be out of date.

lost timer ticks doesn't worry me that much, they mess up the system
time persistently anyways with 2.4 (and not all platforms uses the tsc
anyways, even on x86), it's only the lost softirqs that concerns me.
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