linux-kernel - [PATCH 3/5] perf tools: Use hpp_dimension__add

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Date:	Wed,  7 Oct 2015 19:45:15 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...nel.org>,
	David Ahern <dsahern@...il.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 3/5] perf tools: Use hpp_dimension__add_output to register hpp columns

From: Jiri Olsa <jolsa@...nel.org>

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@...ry=0x880440 <perf_hpp.format>) at util/sort.c:1506
  1506    {

     #0  0x00000000004c1355 in perf_hpp__is_sort_entry (format=format@...ry=0x880440 <perf_hpp.format>) at util/sort.c:1506
     #1  0x00000000004c139d in perf_hpp__same_sort_entry (a=a@...ry=0x880440 <perf_hpp.format>, b=b@...ry=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@...ry=0x875628 <commands+168>, argc=argc@...ry=3, argv=argv@...ry=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@...ry=0x7ffea5a0e5fc, argv=argv@...ry=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.

Reported-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Acked-by: Namhyung Kim <namhyung@...nel.org>
Cc: David Ahern <dsahern@...il.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1444134312-29136-4-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/ui/hist.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index 25d608394d74..5029ba2b55af 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -463,27 +463,27 @@ void perf_hpp__init(void)
 		return;
 
 	if (symbol_conf.cumulate_callchain) {
-		perf_hpp__column_enable(PERF_HPP__OVERHEAD_ACC);
+		hpp_dimension__add_output(PERF_HPP__OVERHEAD_ACC);
 		perf_hpp__format[PERF_HPP__OVERHEAD].name = "Self";
 	}
 
-	perf_hpp__column_enable(PERF_HPP__OVERHEAD);
+	hpp_dimension__add_output(PERF_HPP__OVERHEAD);
 
 	if (symbol_conf.show_cpu_utilization) {
-		perf_hpp__column_enable(PERF_HPP__OVERHEAD_SYS);
-		perf_hpp__column_enable(PERF_HPP__OVERHEAD_US);
+		hpp_dimension__add_output(PERF_HPP__OVERHEAD_SYS);
+		hpp_dimension__add_output(PERF_HPP__OVERHEAD_US);
 
 		if (perf_guest) {
-			perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_SYS);
-			perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_US);
+			hpp_dimension__add_output(PERF_HPP__OVERHEAD_GUEST_SYS);
+			hpp_dimension__add_output(PERF_HPP__OVERHEAD_GUEST_US);
 		}
 	}
 
 	if (symbol_conf.show_nr_samples)
-		perf_hpp__column_enable(PERF_HPP__SAMPLES);
+		hpp_dimension__add_output(PERF_HPP__SAMPLES);
 
 	if (symbol_conf.show_total_period)
-		perf_hpp__column_enable(PERF_HPP__PERIOD);
+		hpp_dimension__add_output(PERF_HPP__PERIOD);
 
 	/* prepend overhead field for backward compatiblity.  */
 	list = &perf_hpp__format[PERF_HPP__OVERHEAD].sort_list;
-- 
2.1.0

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