Messages in this thread Patch in this message | | | Date | Thu, 6 Dec 2012 17:51:36 +0100 | From | Jiri Olsa <> | Subject | Re: [PATCH 4/5] perf diff: Use internal rb tree for compute resort |
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On Fri, Dec 07, 2012 at 12:09:40AM +0900, Namhyung Kim wrote: > From: Namhyung Kim <namhyung.kim@lge.com> > > There's no reason to run hists_compute_resort() using output tree. > Convert it to use internal tree so that it can remove unnecessary > _output_resort.
I have another patch in queue ommiting dummy entries to display number in the compute column, so we don't have confusing 'sorted' outputs like:
[jolsa@krava perf]$ ./perf diff -c+delta # Event 'cycles:u' # # Baseline Delta Shared Object Symbol # ........ ....... ............. .......................... # 17.92% -17.92% libc-2.15.so [.] _IO_link_in +77.54% libc-2.15.so [.] __fprintf_chk 15.64% -15.64% libc-2.15.so [.] _dl_addr 0.08% +0.61% ld-2.15.so [.] _start 12.16% -12.16% ld-2.15.so [.] dl_main 15.39% -15.39% ld-2.15.so [.] _dl_check_map_versions 38.81% -17.04% [kernel.kallsyms] [k] page_fault
just in case anyone actualy tries and wonders ;)
We need following change as well, because output resort does also col width recalc. Please add it if you respin, or I can send it later.
other than that:
Acked-by: Jiri Olsa <jolsa@redhat.com>
thanks, jirka
--- diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c index f66968e..6f56f78 100644 --- a/tools/perf/builtin-diff.c +++ b/tools/perf/builtin-diff.c @@ -425,12 +425,15 @@ static void hists__compute_resort(struct hists *hists) hists->entries = RB_ROOT; next = rb_first(root); + hists__reset_col_len(hists); + while (next != NULL) { struct hist_entry *he; he = rb_entry(next, struct hist_entry, rb_node_in); next = rb_next(&he->rb_node_in); + hists__calc_col_len(hists, he); insert_hist_entry_by_compute(&hists->entries, he, compute); } }
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