From 79dded8776c2dc4d6e1229de69f4027e84d63673 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Fri, 26 Feb 2016 21:13:19 +0900 Subject: [PATCH] perf hists browser: Show message for percent limit Like the stdio, it should show messages about omitted hierarchy entries. Please refer the previous commit for more details. As it needs to check an entry is omitted or not multiple times, add the has_no_entry field in the hist entry. Suggested-and-Tested-by: Arnaldo Carvalho de Melo Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: David Ahern Cc: Jiri Olsa Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Wang Nan Link: http://lkml.kernel.org/r/1456488800-28124-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/ui/browsers/hists.c | 99 ++++++++++++++++++++++++++++++++++ tools/perf/util/hist.c | 2 + tools/perf/util/sort.h | 1 + 3 files changed, 102 insertions(+) diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index 904eaa719eb3..71c6d510390f 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -260,6 +260,9 @@ static int hierarchy_count_rows(struct hist_browser *hb, struct hist_entry *he, if (he->leaf) return callchain__count_rows(&he->sorted_chain); + if (he->has_no_entry) + return 1; + node = rb_first(&he->hroot_out); while (node) { float percent; @@ -409,10 +412,18 @@ static bool hist_browser__toggle_fold(struct hist_browser *browser) /* account grand children */ if (symbol_conf.report_hierarchy) browser->b.nr_entries += child_rows - he->nr_rows; + + if (!he->leaf && he->nr_rows == 0) { + he->has_no_entry = true; + he->nr_rows = 1; + } } else { if (symbol_conf.report_hierarchy) browser->b.nr_entries -= child_rows - he->nr_rows; + if (he->has_no_entry) + he->has_no_entry = false; + he->nr_rows = 0; } @@ -545,6 +556,12 @@ __hist_browser__set_folding(struct hist_browser *browser, bool unfold) browser->nr_hierarchy_entries++; if (he->leaf) browser->nr_callchain_rows += he->nr_rows; + else if (unfold && !hist_entry__has_hierarchy_children(he, browser->min_pcnt)) { + browser->nr_hierarchy_entries++; + he->has_no_entry = true; + he->nr_rows = 1; + } else + he->has_no_entry = false; } } @@ -1412,6 +1429,75 @@ show_callchain: return printed; } +static int hist_browser__show_no_entry(struct hist_browser *browser, + unsigned short row, + int level, int nr_sort_keys) +{ + int width = browser->b.width; + bool current_entry = ui_browser__is_current_entry(&browser->b, row); + bool first = true; + int column = 0; + int ret; + struct perf_hpp_fmt *fmt; + + if (current_entry) { + browser->he_selection = NULL; + browser->selection = NULL; + } + + hist_browser__gotorc(browser, row, 0); + + if (current_entry && browser->b.navkeypressed) + ui_browser__set_color(&browser->b, HE_COLORSET_SELECTED); + else + ui_browser__set_color(&browser->b, HE_COLORSET_NORMAL); + + ui_browser__write_nstring(&browser->b, "", level * HIERARCHY_INDENT); + width -= level * HIERARCHY_INDENT; + + hists__for_each_format(browser->hists, fmt) { + if (perf_hpp__should_skip(fmt, browser->hists) || + column++ < browser->b.horiz_scroll) + continue; + + if (perf_hpp__is_sort_entry(fmt) || + perf_hpp__is_dynamic_entry(fmt)) + break; + + ret = fmt->width(fmt, NULL, hists_to_evsel(browser->hists)); + + if (first) { + /* for folded sign */ + first = false; + ret++; + } else { + /* space between columns */ + ret += 2; + } + + ui_browser__write_nstring(&browser->b, "", ret); + width -= ret; + } + + ui_browser__write_nstring(&browser->b, "", nr_sort_keys * HIERARCHY_INDENT); + width -= nr_sort_keys * HIERARCHY_INDENT; + + if (column >= browser->b.horiz_scroll) { + char buf[32]; + + ret = snprintf(buf, sizeof(buf), "no entry >= %.2f%%", browser->min_pcnt); + ui_browser__printf(&browser->b, " %s", buf); + width -= ret + 2; + } + + /* The scroll bar isn't being used */ + if (!browser->b.navkeypressed) + width += 1; + + ui_browser__write_nstring(&browser->b, "", width); + return 1; +} + static int advance_hpp_check(struct perf_hpp *hpp, int inc) { advance_hpp(hpp, inc); @@ -1575,6 +1661,14 @@ static unsigned int hist_browser__refresh(struct ui_browser *browser) row += hist_browser__show_hierarchy_entry(hb, h, row, h->depth, nr_sort); + if (row == browser->rows) + break; + + if (h->has_no_entry) { + hist_browser__show_no_entry(hb, row, h->depth, + nr_sort); + row++; + } } else { row += hist_browser__show_entry(hb, h, row); } @@ -2461,6 +2555,11 @@ static void hist_browser__update_percent_limit(struct hist_browser *hb, while ((nd = hists__filter_entries(nd, hb->min_pcnt)) != NULL) { he = rb_entry(nd, struct hist_entry, rb_node); + if (he->has_no_entry) { + he->has_no_entry = false; + he->nr_rows = 0; + } + if (!he->leaf || !symbol_conf.use_callchain) goto next; diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index e71691977a95..75dc41d2dca9 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -1625,6 +1625,7 @@ static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *h /* force fold unfiltered entry for simplicity */ parent->unfolded = false; + parent->has_no_entry = false; parent->row_offset = 0; parent->nr_rows = 0; next: @@ -1637,6 +1638,7 @@ next: /* force fold unfiltered entry for simplicity */ h->unfolded = false; + h->has_no_entry = false; h->row_offset = 0; h->nr_rows = 0; diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h index a8d53ffe0916..25a5529a94e4 100644 --- a/tools/perf/util/sort.h +++ b/tools/perf/util/sort.h @@ -117,6 +117,7 @@ struct hist_entry { bool init_have_children; bool unfolded; bool has_children; + bool has_no_entry; }; }; char *srcline;