Re: wrong timestamps in ftrace?

From: Steven Rostedt
Date: Tue Mar 17 2009 - 12:11:46 EST



On Tue, 17 Mar 2009, Miklos Szeredi wrote:

> On Tue, 17 Mar 2009, Ingo Molnar wrote:
> > * Miklos Szeredi <miklos@xxxxxxxxxx> wrote:
> > >
> > > So according to the timestamps the time difference between the first
> > > and last event was just 0.12s, which is rubbish.
> > >
> > > This is latest git on a CoreDuo T60 notebook. Attaching .config and
> > > dmesg.
> >
> > There's been changes to timestamping in the tracing tree. Could you
> > check whether latest -tip:
> >
> > http://people.redhat.com/mingo/tip.git/README
> >
> > works better for you?
>
> Unfortunately no, it's behaving exatly the same.
>
> # uname -a
> Linux tucsk 2.6.29-rc8-tip-02571-g0fcb24f-dirty #9 SMP PREEMPT Tue Mar 17 16:53:41 CET 2009 x86_64 x86_64 x86_64 GNU/Linux

Yeah, the global clock source is there, but currently we do not have an
option to enable it. I'm working on a patch now to fix that.

Thanks,

-- Steve

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