perf tools: Move elide bool into perf_hpp_fmt struct

After output/sort fields refactoring, it's expensive
to check the elide bool in its current location inside
the 'struct sort_entry'.

The perf_hpp__should_skip function gets highly noticable in
workloads with high number of output/sort fields, like for:

  $ perf report -i perf-test.data -F overhead,sample,period,comm,pid,dso,symbol,cpu --stdio

Performance report:
   9.70%  perf  [.] perf_hpp__should_skip

Moving the elide bool into the 'struct perf_hpp_fmt', which
makes the perf_hpp__should_skip just single struct read.

Got speedup of around 22% for my test perf.data workload.
The change should not harm any other workload types.

Performance counter stats for (10 runs):
  before:
   358,319,732,626      cycles                    ( +-  0.55% )
   467,129,581,515      instructions              #    1.30  insns per cycle          ( +-  0.00% )

     150.943975206 seconds time elapsed           ( +-  0.62% )

  now:
   278,785,972,990      cycles                    ( +-  0.12% )
   370,146,797,640      instructions              #    1.33  insns per cycle          ( +-  0.00% )

     116.416670507 seconds time elapsed           ( +-  0.31% )

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20140601142622.GA9131@krava.brq.redhat.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 5905acde5f1d..52c03fbbba17 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1706,14 +1706,14 @@ zoom_dso:
 zoom_out_dso:
                                 ui_helpline__pop();
                                 browser->hists->dso_filter = NULL;
-                                sort_dso.elide = false;
+                                perf_hpp__set_elide(HISTC_DSO, false);
                         } else {
                                 if (dso == NULL)
                                         continue;
                                 ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s DSO\"",
                                                    dso->kernel ? "the Kernel" : dso->short_name);
                                 browser->hists->dso_filter = dso;
-                                sort_dso.elide = true;
+                                perf_hpp__set_elide(HISTC_DSO, true);
                                 pstack__push(fstack, &browser->hists->dso_filter);
                         }
                         hists__filter_by_dso(hists);
@@ -1725,13 +1725,13 @@ zoom_thread:
 zoom_out_thread:
                                 ui_helpline__pop();
                                 browser->hists->thread_filter = NULL;
-                                sort_thread.elide = false;
+                                perf_hpp__set_elide(HISTC_THREAD, false);
                         } else {
                                 ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s(%d) thread\"",
                                                    thread->comm_set ? thread__comm_str(thread) : "",
                                                    thread->tid);
                                 browser->hists->thread_filter = thread;
-                                sort_thread.elide = true;
+                                perf_hpp__set_elide(HISTC_THREAD, false);
                                 pstack__push(fstack, &browser->hists->thread_filter);
                         }
                         hists__filter_by_thread(hists);