Re: [PATCH 4/5] tracing/core: drop the cpu field from trace_entry

From: Ingo Molnar
Date: Mon Feb 09 2009 - 09:03:47 EST



* Frederic Weisbecker <fweisbec@xxxxxxxxx> wrote:

> On Mon, Feb 09, 2009 at 10:53:24AM +0100, Ingo Molnar wrote:
> >
> > * Frederic Weisbecker <fweisbec@xxxxxxxxx> wrote:
> >
> > > Impact: fix a bug on cpu output
> > >
> > > While looking on the function tracer traces, I first cheered up:
> > >
> > > TASK-PID CPU# TIMESTAMP FUNCTION
> > > | | | | |
> > > firefox-4622 [081] 1315.790405: lapic_next_event <-clockevents_program_event
> > > firefox-4622 [178] 1315.790405: native_apic_mem_write <-lapic_next_event
> > > firefox-4622 [020] 1315.790406: perf_counter_unthrottle <-smp_apic_timer_interrupt
> > >
> > > But no, actually I don't have so many cpus...
> >
> > incidentally, Steve came up with the exact same patch :)
> >
> > Ingo
>
> Heh, I guess the moon inspired both of us in the name of tracing, or
> something like that...

It was exactly at around the time Thomas complained over IRC
about the visible CPU# breakage in the tracer output.

So i blame it on telepathy ;-)

Ingo
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