diff options
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/builtin-c2c.c | 114 |
1 files changed, 95 insertions, 19 deletions
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index 92b3b8171d4d..75bcf1406df3 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -63,6 +63,13 @@ struct perf_c2c { /* HITM shared clines stats */ struct c2c_stats hitm_stats; int shared_clines; + + int display; +}; + +enum { + DISPLAY_LCL, + DISPLAY_RMT, }; static struct perf_c2c c2c; @@ -684,15 +691,24 @@ static double percent_hitm(struct c2c_hist_entry *c2c_he) struct c2c_hists *hists; struct c2c_stats *stats; struct c2c_stats *total; - int tot, st; + int tot = 0, st = 0; double p; hists = container_of(c2c_he->he.hists, struct c2c_hists, hists); stats = &c2c_he->stats; total = &hists->stats; - st = stats->rmt_hitm; - tot = total->rmt_hitm; + switch (c2c.display) { + case DISPLAY_RMT: + st = stats->rmt_hitm; + tot = total->rmt_hitm; + break; + case DISPLAY_LCL: + st = stats->lcl_hitm; + tot = total->lcl_hitm; + default: + break; + } p = tot ? (double) st / tot : 0; @@ -975,14 +991,26 @@ node_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp, ret = scnprintf(hpp->buf, hpp->size, "%2d{%2d ", node, num); advance_hpp(hpp, ret); + #define DISPLAY_HITM(__h) \ + if (c2c_he->stats.__h> 0) { \ + ret = scnprintf(hpp->buf, hpp->size, "%5.1f%% ", \ + percent(stats->__h, c2c_he->stats.__h));\ + } else { \ + ret = scnprintf(hpp->buf, hpp->size, "%6s ", "n/a"); \ + } - if (c2c_he->stats.rmt_hitm > 0) { - ret = scnprintf(hpp->buf, hpp->size, "%5.1f%% ", - percent(stats->rmt_hitm, c2c_he->stats.rmt_hitm)); - } else { - ret = scnprintf(hpp->buf, hpp->size, "%6s ", "n/a"); + switch (c2c.display) { + case DISPLAY_RMT: + DISPLAY_HITM(rmt_hitm); + break; + case DISPLAY_LCL: + DISPLAY_HITM(lcl_hitm); + default: + break; } + #undef DISPLAY_HITM + advance_hpp(hpp, ret); if (c2c_he->stats.store > 0) { @@ -1258,8 +1286,12 @@ static struct c2c_dimension dim_tot_loads = { .width = 7, }; +static struct c2c_header percent_hitm_header[] = { + [DISPLAY_LCL] = HEADER_BOTH("Lcl", "Hitm"), + [DISPLAY_RMT] = HEADER_BOTH("Rmt", "Hitm"), +}; + static struct c2c_dimension dim_percent_hitm = { - .header = HEADER_LOW("%hitm"), .name = "percent_hitm", .cmp = percent_hitm_cmp, .entry = percent_hitm_entry, @@ -1654,23 +1686,39 @@ static bool he__display(struct hist_entry *he, struct c2c_stats *stats) c2c_he = container_of(he, struct c2c_hist_entry, he); - if (stats->rmt_hitm) { - ld_dist = ((double)c2c_he->stats.rmt_hitm / stats->rmt_hitm); - if (ld_dist < DISPLAY_LINE_LIMIT) - he->filtered = HIST_FILTER__C2C; - } else { - he->filtered = HIST_FILTER__C2C; +#define FILTER_HITM(__h) \ + if (stats->__h) { \ + ld_dist = ((double)c2c_he->stats.__h / stats->__h); \ + if (ld_dist < DISPLAY_LINE_LIMIT) \ + he->filtered = HIST_FILTER__C2C; \ + } else { \ + he->filtered = HIST_FILTER__C2C; \ } + switch (c2c.display) { + case DISPLAY_LCL: + FILTER_HITM(lcl_hitm); + break; + case DISPLAY_RMT: + FILTER_HITM(rmt_hitm); + default: + break; + }; + +#undef FILTER_HITM + return he->filtered == 0; } static inline int valid_hitm_or_store(struct hist_entry *he) { struct c2c_hist_entry *c2c_he; + bool has_hitm; c2c_he = container_of(he, struct c2c_hist_entry, he); - return c2c_he->stats.rmt_hitm || c2c_he->stats.store; + has_hitm = c2c.display == DISPLAY_LCL ? + c2c_he->stats.lcl_hitm : c2c_he->stats.rmt_hitm; + return has_hitm || c2c_he->stats.store; } static int filter_cb(struct hist_entry *he) @@ -1951,6 +1999,8 @@ static void print_c2c_info(FILE *out, struct perf_session *session) perf_evsel__name(evsel)); first = false; } + fprintf(out, " Cachelines sort on : %s HITMs\n", + c2c.display == DISPLAY_LCL ? "Local" : "Remote"); } static void perf_c2c__hists_fprintf(FILE *out, struct perf_session *session) @@ -2083,8 +2133,10 @@ static int perf_c2c_browser__title(struct hist_browser *browser, char *bf, size_t size) { scnprintf(bf, size, - "Shared Data Cache Line Table " - "(%lu entries)", browser->nr_non_filtered_entries); + "Shared Data Cache Line Table " + "(%lu entries, sorted on %s HITMs)", + browser->nr_non_filtered_entries, + c2c.display == DISPLAY_LCL ? "local" : "remote"); return 0; } @@ -2156,6 +2208,8 @@ static void ui_quirks(void) dim_offset.width = 5; dim_offset.header = header_offset_tui; } + + dim_percent_hitm.header = percent_hitm_header[c2c.display]; } #define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function,percent" @@ -2210,6 +2264,22 @@ static int setup_callchain(struct perf_evlist *evlist) return 0; } +static int setup_display(const char *str) +{ + const char *display = str ?: "rmt"; + + if (!strcmp(display, "rmt")) + c2c.display = DISPLAY_RMT; + else if (!strcmp(display, "lcl")) + c2c.display = DISPLAY_LCL; + else { + pr_err("failed: unknown display type: %s\n", str); + return -1; + } + + return 0; +} + static int perf_c2c__report(int argc, const char **argv) { struct perf_session *session; @@ -2218,6 +2288,7 @@ static int perf_c2c__report(int argc, const char **argv) .mode = PERF_DATA_MODE_READ, }; char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT; + const char *display = NULL; const struct option c2c_options[] = { OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, "file", "vmlinux pathname"), @@ -2236,6 +2307,7 @@ static int perf_c2c__report(int argc, const char **argv) "print_type,threshold[,print_limit],order,sort_key[,branch],value", callchain_help, &parse_callchain_opt, callchain_default_opt), + OPT_STRING('d', "display", &display, NULL, "lcl,rmt"), OPT_END() }; int err = 0; @@ -2260,6 +2332,10 @@ static int perf_c2c__report(int argc, const char **argv) file.path = input_name; + err = setup_display(display); + if (err) + goto out; + err = c2c_hists__init(&c2c.hists, "dcacheline", 2); if (err) { pr_debug("Failed to initialize hists\n"); @@ -2307,7 +2383,7 @@ static int perf_c2c__report(int argc, const char **argv) "tot_loads," "ld_fbhit,ld_l1hit,ld_l2hit," "ld_lclhit,ld_rmthit", - "rmt_hitm" + c2c.display == DISPLAY_LCL ? "lcl_hitm" : "rmt_hitm" ); ui_progress__init(&prog, c2c.hists.hists.nr_entries, "Sorting..."); |