Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 12/59] perf tools: Skip dynamic fields not defined for current event | Date | Fri, 8 Jan 2016 15:02:19 -0300 |
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From: Namhyung Kim <namhyung@kernel.org>
When there are multiple events, each dynamic sort key is defined just for one event. In this case other events will always show "N/A" for those fields. But they are meaningless and consume precious screen width.
Let's skip those undefined dynamic fields.
$ perf record -e kmem:kmalloc,kmem:kfree -a sleep 1
$ perf report -s 'comm,kmalloc.*' --stdio # To display the perf.data header info, please use --header/--header-only options. # # # Total Lost Samples: 0 # # Samples: 20K of event 'kmem:kmalloc' # Event count (approx.): 20533 # # Overhead Command call_site ptr bytes_req bytes_alloc gfp_flags # ........ ....... .................. .................. ......... ........... ................... # 99.89% perf ffffffffa01d4396 0xffff8803ffb79720 96 96 GFP_NOFS|GFP_ZERO 0.06% sleep ffffffff8114e1cd 0xffff8803d228a000 4096 4096 GFP_KERNEL 0.03% perf ffffffff811d6ae6 0xffff8803f7678f00 240 256 GFP_KERNEL|GFP_ZERO 0.00% perf ffffffff812263c1 0xffff880406172380 128 128 GFP_KERNEL 0.00% perf ffffffff812264b9 0xffff8803ffac1600 504 512 GFP_KERNEL 0.00% perf ffffffff81226634 0xffff880401dc5280 28 32 GFP_KERNEL 0.00% sleep ffffffff81226da9 0xffff8803ffac3a00 392 512 GFP_KERNEL
# Samples: 20K of event 'kmem:kfree' # Event count (approx.): 20597 # # Overhead Command # ........ .............. # 99.63% perf 0.14% sleep 0.11% irq/36-iwlwifi 0.11% kworker/u16:0 0.01% Xorg 0.00% firefox
Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450804030-29193-12-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/ui/browsers/hists.c | 7 ++++--- tools/perf/ui/gtk/hists.c | 4 ++-- tools/perf/ui/hist.c | 2 +- tools/perf/ui/stdio/hist.c | 6 +++--- tools/perf/util/hist.c | 2 +- tools/perf/util/hist.h | 14 ++++++++++++-- tools/perf/util/sort.c | 20 ++++++++++++++------ 7 files changed, 37 insertions(+), 18 deletions(-)
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index ec331969b7d7..901d481e6cea 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -1041,7 +1041,8 @@ static int hist_browser__show_entry(struct hist_browser *browser, hist_browser__gotorc(browser, row, 0); perf_hpp__for_each_format(fmt) { - if (perf_hpp__should_skip(fmt) || column++ < browser->b.horiz_scroll) + if (perf_hpp__should_skip(fmt, entry->hists) || + column++ < browser->b.horiz_scroll) continue; if (current_entry && browser->b.navkeypressed) { @@ -1144,7 +1145,7 @@ static int hists_browser__scnprintf_headers(struct hist_browser *browser, char * } perf_hpp__for_each_format(fmt) { - if (perf_hpp__should_skip(fmt) || column++ < browser->b.horiz_scroll) + if (perf_hpp__should_skip(fmt, hists) || column++ < browser->b.horiz_scroll) continue; ret = fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists)); @@ -1414,7 +1415,7 @@ static int hist_browser__fprintf_entry(struct hist_browser *browser, printed += fprintf(fp, "%c ", folded_sign); perf_hpp__for_each_format(fmt) { - if (perf_hpp__should_skip(fmt)) + if (perf_hpp__should_skip(fmt, he->hists)) continue; if (!first) { diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c index 467717276ab6..0f8dcfdfb10f 100644 --- a/tools/perf/ui/gtk/hists.c +++ b/tools/perf/ui/gtk/hists.c @@ -318,7 +318,7 @@ static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists, col_idx = 0; perf_hpp__for_each_format(fmt) { - if (perf_hpp__should_skip(fmt)) + if (perf_hpp__should_skip(fmt, hists)) continue; /* @@ -368,7 +368,7 @@ static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists, col_idx = 0; perf_hpp__for_each_format(fmt) { - if (perf_hpp__should_skip(fmt)) + if (perf_hpp__should_skip(fmt, h->hists)) continue; if (fmt->color) diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c index 5029ba2b55af..8263c0eb9fb5 100644 --- a/tools/perf/ui/hist.c +++ b/tools/perf/ui/hist.c @@ -619,7 +619,7 @@ unsigned int hists__sort_list_width(struct hists *hists) struct perf_hpp dummy_hpp; perf_hpp__for_each_format(fmt) { - if (perf_hpp__should_skip(fmt)) + if (perf_hpp__should_skip(fmt, hists)) continue; if (first) diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c index 7ebc661be267..387110d50b00 100644 --- a/tools/perf/ui/stdio/hist.c +++ b/tools/perf/ui/stdio/hist.c @@ -385,7 +385,7 @@ static int hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp) return 0; perf_hpp__for_each_format(fmt) { - if (perf_hpp__should_skip(fmt)) + if (perf_hpp__should_skip(fmt, he->hists)) continue; /* @@ -464,7 +464,7 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows, fprintf(fp, "# "); perf_hpp__for_each_format(fmt) { - if (perf_hpp__should_skip(fmt)) + if (perf_hpp__should_skip(fmt, hists)) continue; if (!first) @@ -490,7 +490,7 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows, perf_hpp__for_each_format(fmt) { unsigned int i; - if (perf_hpp__should_skip(fmt)) + if (perf_hpp__should_skip(fmt, hists)) continue; if (!first) diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index fdb97e16a8c3..afc9b8f1b36c 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -1112,7 +1112,7 @@ static int hist_entry__sort(struct hist_entry *a, struct hist_entry *b) int64_t cmp = 0; perf_hpp__for_each_sort_list(fmt) { - if (perf_hpp__should_skip(fmt)) + if (perf_hpp__should_skip(fmt, a->hists)) continue; cmp = fmt->sort(fmt, a, b); diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h index 15b22c563d30..cb8f37349972 100644 --- a/tools/perf/util/hist.h +++ b/tools/perf/util/hist.h @@ -262,10 +262,20 @@ void perf_hpp__append_sort_keys(void); bool perf_hpp__is_sort_entry(struct perf_hpp_fmt *format); bool perf_hpp__same_sort_entry(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b); +bool perf_hpp__is_dynamic_entry(struct perf_hpp_fmt *format); +bool perf_hpp__defined_dynamic_entry(struct perf_hpp_fmt *fmt, struct hists *hists); -static inline bool perf_hpp__should_skip(struct perf_hpp_fmt *format) +static inline bool perf_hpp__should_skip(struct perf_hpp_fmt *format, + struct hists *hists) { - return format->elide; + if (format->elide) + return true; + + if (perf_hpp__is_dynamic_entry(format) && + !perf_hpp__defined_dynamic_entry(format, hists)) + return true; + + return false; } void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists); diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c index f6aef15a651d..fd56223793a8 100644 --- a/tools/perf/util/sort.c +++ b/tools/perf/util/sort.c @@ -1698,6 +1698,15 @@ static int __sort__hde_width(struct perf_hpp_fmt *fmt, return len; } +bool perf_hpp__defined_dynamic_entry(struct perf_hpp_fmt *fmt, struct hists *hists) +{ + struct hpp_dynamic_entry *hde; + + hde = container_of(fmt, struct hpp_dynamic_entry, hpp); + + return hists_to_evsel(hists) == hde->evsel; +} + static int __sort__hde_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, struct hist_entry *he) { @@ -1714,9 +1723,6 @@ static int __sort__hde_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, if (!len) len = hde_width(hde); - if (hists_to_evsel(he->hists) != hde->evsel) - return scnprintf(hpp->buf, hpp->size, "%*.*s", len, len, "N/A"); - if (hde->raw_trace) goto raw_field; @@ -1769,9 +1775,6 @@ static int64_t __sort__hde_cmp(struct perf_hpp_fmt *fmt, hde = container_of(fmt, struct hpp_dynamic_entry, hpp); - if (hists_to_evsel(a->hists) != hde->evsel) - return 0; - field = hde->field; if (field->flags & FIELD_IS_DYNAMIC) { unsigned long long dyn; @@ -1794,6 +1797,11 @@ static int64_t __sort__hde_cmp(struct perf_hpp_fmt *fmt, return memcmp(a->raw_data + offset, b->raw_data + offset, size); } +bool perf_hpp__is_dynamic_entry(struct perf_hpp_fmt *fmt) +{ + return fmt->cmp == __sort__hde_cmp; +} + static struct hpp_dynamic_entry * __alloc_dynamic_entry(struct perf_evsel *evsel, struct format_field *field) { -- 2.1.0
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