Re: [RFC 0/3] perf tools: Make perf_hpp__init respect output dimensions

[Arnaldo Carvalho de Melo <acme@kernel.org>]

Em Tue, Oct 06, 2015 at 11:04:28PM +0900, Namhyung Kim escreveu:
> On Tue, Oct 6, 2015 at 9:25 PM, Jiri Olsa <jolsa@kernel.org> wrote:
> > hi,
> > The perf_hpp__init currently does not respect sorting dimensions
> > and the setup_sorting function could endup queueing same format
> > twice. That screwed up the perf_hpp__list and got stuck in loop
> > within perf_hpp__setup_output_field function.
> >
> >   $ perf report -F +overhead
> >
> >   0x00000000004c1355 in perf_hpp__is_sort_entry (format=format@entry=0x880440 <perf_hpp.format>) at util/sort.c:1506
> >   1506    {
> >
> >      #0  0x00000000004c1355 in perf_hpp__is_sort_entry (format=format@entry=0x880440 <perf_hpp.format>) at util/sort.c:1506
> >      #1  0x00000000004c139d in perf_hpp__same_sort_entry (a=a@entry=0x880440 <perf_hpp.format>, b=b@entry=0x2bb2fe0) at util/sort.c:1380
> >      #2  0x00000000004f8d3c in perf_hpp__setup_output_field () at ui/hist.c:554
> >      #3  0x00000000004c1d1e in setup_sorting () at util/sort.c:1984
> >      #4  0x000000000042efbf in cmd_report (argc=0, argv=0x7ffea5a0e790, prefix=<optimized out>) at builtin-report.c:874
> >      #5  0x0000000000476f13 in run_builtin (p=p@entry=0x875628 <commands+168>, argc=argc@entry=3, argv=argv@entry=0x7ffea5a0e790) at perf.c:385
> >      #6  0x000000000047710b in handle_internal_command (argc=3, argv=0x7ffea5a0e790) at perf.c:445
> >      #7  0x0000000000477176 in run_argv (argcp=argcp@entry=0x7ffea5a0e5fc, argv=argv@entry=0x7ffea5a0e5f0) at perf.c:489
> >      #8  0x00000000004773e7 in main (argc=3, argv=0x7ffea5a0e790) at perf.c:606
> >
> > Using hpp_dimension__add_output function to register
> > the output column. It will also mark the dimension
> > as taken and omit above stuck.
> >
> > It might need some other changes.. not sure, Namhyung? ;-)
> 
> Nope.  It looks good to me as is. :)  It should work once it sets up
> the output field and sort list properly, so
> 
> Acked-by: Namhyung Kim <namhyung@kernel.org>

Thanks, added.

- Arnaldo