Re: [PATCHSET 00/17] perf tools: Introduce new 'ftrace' command (v4)

From: Jiri Olsa
Date: Fri Aug 09 2013 - 06:25:34 EST

On Tue, Jul 30, 2013 at 06:18:57PM +0900, Namhyung Kim wrote:
> This patchset implements a front-end tool for kernel's ftrace. It
> uses function_graph tracer by default and normal function tracer is
> also supported. (Of course you need to enable those tracers in your
> kernel first.)
> v4 changes:
> * use pid instead of tid for -p option (David)
> * not to poll() for reading ftrace pipes (Jiri)
> * rename to create_perf_header() (Jiri)
> * canonicalize directory name (Jiri)
> * show more info when -D option was given (Jiri)
> * update documentation (Jiri)
> * and few more bug fixes
> I pushed it out to 'perf/ftrace-v4' branch on my tree at:
> git://

also, this one works now:

./perf --no-pager ftrace live -t function -p `pgrep yes`

but if I kill 'yes' perf live commands hangs,
I'd expect it'd stop

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