Re: [PATCH 00/14] [GIT PULL][v2.6.39] tracing/filter: More robustfiltering

From: Ingo Molnar
Date: Wed Feb 16 2011 - 04:10:49 EST



* Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> Let me apologize again. [...]

No need to apologize - you raised valid questions that have come up in the past and
i am pretty good at ignoring early-in-the-morning aspect of mails ;-)

> > Anyway, there's certainly encouraging responses in this thread so i'm hopeful
> > that it's getting fixed and improved and we can push the generic bits upstream.
>
> Yes, I'm hopeful too ;)

Great! :-)

If someone wants to dust off the 'trace' utility patches that are still in
tip:tmp.perf/trace that would be fantastic. Thomas and Peter prototyped an
ftrace-esque buffering model there, to have all events associated with a
single fd (and hence a single [per cpu] buffer).

Warning, they conflict left and right with the current code:

kernel/sched.c
kernel/trace/trace.c
tools/perf/Makefile
tools/perf/builtin-record.c
tools/perf/util/event.c
tools/perf/util/header.c
tools/perf/util/parse-events.c
tools/perf/util/session.c
tools/perf/util/session.h

So it's quite a bit of work - and of course it was all very unfinished, not even
reaching prototype stage really.

Thanks,

Ingo
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