From 61a9741e9f78c64c5178e4ae9d405eeceff04c8f Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 12 Dec 2023 16:13:22 -0800 Subject: perf annotate: Add --type-stat option for debugging The --type-stat option is to be used with --data-type and to print detailed failure reasons for the data type annotation. $ perf annotate --data-type --type-stat Annotate data type stats: total 294, ok 116 (39.5%), bad 178 (60.5%) ----------------------------------------------------------- 30 : no_sym 40 : no_insn_ops 33 : no_mem_ops 63 : no_var 4 : no_typeinfo 8 : bad_offset Signed-off-by: Namhyung Kim Tested-by: Arnaldo Carvalho de Melo Cc: Adrian Hunter Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Linus Torvalds Cc: Masami Hiramatsu Cc: Peter Zijlstra Cc: Stephane Eranian Cc: linux-toolchains@vger.kernel.org Cc: linux-trace-devel@vger.kernel.org Link: https://lore.kernel.org/r/20231213001323.718046-17-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-annotate.c | 44 ++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 43 insertions(+), 1 deletion(-) (limited to 'tools/perf/builtin-annotate.c') diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 3956ea1334cc..55f97ab1395b 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -57,6 +57,7 @@ struct perf_annotate { bool has_br_stack; bool group_set; bool data_type; + bool type_stat; float min_percent; const char *sym_hist_filter; const char *cpu_list; @@ -396,6 +397,43 @@ static void print_annotated_data_type(struct annotated_data_type *mem_type, printf(";\n"); } +static void print_annotate_data_stat(struct annotated_data_stat *s) +{ +#define PRINT_STAT(fld) if (s->fld) printf("%10d : %s\n", s->fld, #fld) + + int bad = s->no_sym + + s->no_insn + + s->no_insn_ops + + s->no_mem_ops + + s->no_reg + + s->no_dbginfo + + s->no_cuinfo + + s->no_var + + s->no_typeinfo + + s->invalid_size + + s->bad_offset; + int ok = s->total - bad; + + printf("Annotate data type stats:\n"); + printf("total %d, ok %d (%.1f%%), bad %d (%.1f%%)\n", + s->total, ok, 100.0 * ok / (s->total ?: 1), bad, 100.0 * bad / (s->total ?: 1)); + printf("-----------------------------------------------------------\n"); + PRINT_STAT(no_sym); + PRINT_STAT(no_insn); + PRINT_STAT(no_insn_ops); + PRINT_STAT(no_mem_ops); + PRINT_STAT(no_reg); + PRINT_STAT(no_dbginfo); + PRINT_STAT(no_cuinfo); + PRINT_STAT(no_var); + PRINT_STAT(no_typeinfo); + PRINT_STAT(invalid_size); + PRINT_STAT(bad_offset); + printf("\n"); + +#undef PRINT_STAT +} + static void hists__find_annotations(struct hists *hists, struct evsel *evsel, struct perf_annotate *ann) @@ -403,6 +441,9 @@ static void hists__find_annotations(struct hists *hists, struct rb_node *nd = rb_first_cached(&hists->entries), *next; int key = K_RIGHT; + if (ann->type_stat) + print_annotate_data_stat(&ann_data_stat); + while (nd) { struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node); struct annotation *notes; @@ -749,7 +790,8 @@ int cmd_annotate(int argc, const char **argv) OPT_CALLBACK_OPTARG(0, "data-type", &annotate, NULL, "name", "Show data type annotate for the memory accesses", parse_data_type), - + OPT_BOOLEAN(0, "type-stat", &annotate.type_stat, + "Show stats for the data type annotation"), OPT_END() }; int ret; -- cgit v1.2.3-70-g09d2