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SubjectRe: [PATCHSET 00/17] perf tools: Introduce new 'ftrace' command (v4)
On Fri, Aug 09, 2013 at 12:25:15PM +0200, Jiri Olsa wrote:
> 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://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.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

on the other hand it looks like it's common behaviour
for standard record/stat... ;-)

jirka


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