From 155e9afff77916931f615a394cef187b342530dc Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Thu, 25 Feb 2016 00:13:38 +0900 Subject: [PATCH] perf hists: Support filtering in hierarchy mode The hists__filter_hierarchy() function implements filtering in hierarchy mode. Now we have hist_entry__filter() so use it for entries in the hierarchy. It returns 3 kind of values. A negative value means that it's not filtered by this type. It marks current entry as filtered tentatively so if a lower level entry removes the filter it also removes the all parent so that we can find the entry in the output. Zero means it's filtered out by this type. A positive value means it's not filtered so it removes the filter and shows in the output. In these cases, it moves to next entry since lower level entry won't match by this type of filter anymore. Thus all children will be filtered or not together. Signed-off-by: Namhyung Kim Acked-by: Pekka Enberg Cc: Andi Kleen Cc: David Ahern Cc: Jiri Olsa Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Wang Nan Link: http://lkml.kernel.org/r/1456326830-30456-7-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/hist.c | 101 +++++++++++++++++++++++++++++++++++++---- 1 file changed, 93 insertions(+), 8 deletions(-) diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 358af7ed07af..dbab977f3a44 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -1560,6 +1560,27 @@ static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *h enum hist_filter filter) { h->filtered &= ~(1 << filter); + + if (symbol_conf.report_hierarchy) { + struct hist_entry *parent = h->parent_he; + + while (parent) { + he_stat__add_stat(&parent->stat, &h->stat); + + parent->filtered &= ~(1 << filter); + + if (parent->filtered) + goto next; + + /* force fold unfiltered entry for simplicity */ + parent->unfolded = false; + parent->row_offset = 0; + parent->nr_rows = 0; +next: + parent = parent->parent_he; + } + } + if (h->filtered) return; @@ -1645,28 +1666,92 @@ static void hists__filter_by_type(struct hists *hists, int type, filter_fn_t fil } } +static void hists__filter_hierarchy(struct hists *hists, int type, const void *arg) +{ + struct rb_node *nd; + + hists->stats.nr_non_filtered_samples = 0; + + hists__reset_filter_stats(hists); + hists__reset_col_len(hists); + + nd = rb_first(&hists->entries); + while (nd) { + struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); + int ret; + + ret = hist_entry__filter(h, type, arg); + + /* + * case 1. non-matching type + * zero out the period, set filter marker and move to child + */ + if (ret < 0) { + memset(&h->stat, 0, sizeof(h->stat)); + h->filtered |= (1 << type); + + nd = __rb_hierarchy_next(&h->rb_node, HMD_FORCE_CHILD); + } + /* + * case 2. matched type (filter out) + * set filter marker and move to next + */ + else if (ret == 1) { + h->filtered |= (1 << type); + + nd = __rb_hierarchy_next(&h->rb_node, HMD_FORCE_SIBLING); + } + /* + * case 3. ok (not filtered) + * add period to hists and parents, erase the filter marker + * and move to next sibling + */ + else { + hists__remove_entry_filter(hists, h, type); + + nd = __rb_hierarchy_next(&h->rb_node, HMD_FORCE_SIBLING); + } + } +} + void hists__filter_by_thread(struct hists *hists) { - hists__filter_by_type(hists, HIST_FILTER__THREAD, - hists__filter_entry_by_thread); + if (symbol_conf.report_hierarchy) + hists__filter_hierarchy(hists, HIST_FILTER__THREAD, + hists->thread_filter); + else + hists__filter_by_type(hists, HIST_FILTER__THREAD, + hists__filter_entry_by_thread); } void hists__filter_by_dso(struct hists *hists) { - hists__filter_by_type(hists, HIST_FILTER__DSO, - hists__filter_entry_by_dso); + if (symbol_conf.report_hierarchy) + hists__filter_hierarchy(hists, HIST_FILTER__DSO, + hists->dso_filter); + else + hists__filter_by_type(hists, HIST_FILTER__DSO, + hists__filter_entry_by_dso); } void hists__filter_by_symbol(struct hists *hists) { - hists__filter_by_type(hists, HIST_FILTER__SYMBOL, - hists__filter_entry_by_symbol); + if (symbol_conf.report_hierarchy) + hists__filter_hierarchy(hists, HIST_FILTER__SYMBOL, + hists->symbol_filter_str); + else + hists__filter_by_type(hists, HIST_FILTER__SYMBOL, + hists__filter_entry_by_symbol); } void hists__filter_by_socket(struct hists *hists) { - hists__filter_by_type(hists, HIST_FILTER__SOCKET, - hists__filter_entry_by_socket); + if (symbol_conf.report_hierarchy) + hists__filter_hierarchy(hists, HIST_FILTER__SOCKET, + &hists->socket_filter); + else + hists__filter_by_type(hists, HIST_FILTER__SOCKET, + hists__filter_entry_by_socket); } void events_stats__inc(struct events_stats *stats, u32 type) -- 2.20.1