Re: [PATCH] mmiotrace: add user documentation

[Pekka Paalanen]

On Mon, 14 Apr 2008 11:49:55 -0400 (EDT)
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> On Sun, 13 Apr 2008, Pekka Paalanen wrote:
> > +
> > +[Unimplemented feature:]
> > +During tracing you can place comments (markers) into the trace by
> > +$ echo "X is up" > /debug/tracing/marker
> 
> I can implement a marker feature (logdev does this). I'll see if I can get
> something working this week.

Cool, I assumed this would require support for variable length entries.
Even if it would be very limited in length, like 16 bytes, it would be useful.

> > +[This feature is not implemented yet!]
> > +Check your kernel log. If there are messages about mmiotrace losing events,
> 
> This is something of higher priority to implement. I'll work on that
> first.

Great!

> > +this is due to buffer overrun, and the trace is incomplete. You should enlarge
> > +the buffers and try again. [How?]
> 
> I pretty much have the infrastructure in place to implement this. Now it's
> just time to do it ;-)


Thank you :-)

-- 
Pekka Paalanen
http://www.iki.fi/pq/
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