From 2cfaa853d8ead2fe4cd82986163b5cea21e300bd Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Tue, 2 Jun 2020 23:47:37 +0200 Subject: perf tools: Factor out prepare_metric function Factoring out prepare_metric function so it can be used in test interface coming in following changes. Signed-off-by: Jiri Olsa Acked-by: Ian Rogers Cc: Alexander Shishkin Cc: Andi Kleen Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/20200602214741.1218986-10-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/stat-shadow.c | 53 +++++++++++++++++++++++++++---------------- 1 file changed, 34 insertions(+), 19 deletions(-) (limited to 'tools/perf/util/stat-shadow.c') diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index a7c13a88ecb9..27be7ce2fff4 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -730,25 +730,16 @@ static void print_smi_cost(struct perf_stat_config *config, out->print_metric(config, out->ctx, NULL, "%4.0f", "SMI#", smi_num); } -static void generic_metric(struct perf_stat_config *config, - const char *metric_expr, - struct evsel **metric_events, - char *name, - const char *metric_name, - const char *metric_unit, - int runtime, - int cpu, - struct perf_stat_output_ctx *out, - struct runtime_stat *st) +static int prepare_metric(struct evsel **metric_events, + struct expr_parse_ctx *pctx, + int cpu, + struct runtime_stat *st) { - print_metric_t print_metric = out->print_metric; - struct expr_parse_ctx pctx; - double ratio, scale; - int i; - void *ctxp = out->ctx; + double scale; char *n, *pn; + int i; - expr__ctx_init(&pctx); + expr__ctx_init(pctx); for (i = 0; metric_events[i]; i++) { struct saved_value *v; struct stats *stats; @@ -771,7 +762,7 @@ static void generic_metric(struct perf_stat_config *config, n = strdup(metric_events[i]->name); if (!n) - return; + return -ENOMEM; /* * This display code with --no-merge adds [cpu] postfixes. * These are not supported by the parser. Remove everything @@ -782,11 +773,35 @@ static void generic_metric(struct perf_stat_config *config, *pn = 0; if (metric_total) - expr__add_id(&pctx, n, metric_total); + expr__add_id(pctx, n, metric_total); else - expr__add_id(&pctx, n, avg_stats(stats)*scale); + expr__add_id(pctx, n, avg_stats(stats)*scale); } + return i; +} + +static void generic_metric(struct perf_stat_config *config, + const char *metric_expr, + struct evsel **metric_events, + char *name, + const char *metric_name, + const char *metric_unit, + int runtime, + int cpu, + struct perf_stat_output_ctx *out, + struct runtime_stat *st) +{ + print_metric_t print_metric = out->print_metric; + struct expr_parse_ctx pctx; + double ratio, scale; + int i; + void *ctxp = out->ctx; + + i = prepare_metric(metric_events, &pctx, cpu, st); + if (i < 0) + return; + if (!metric_events[i]) { if (expr__parse(&ratio, &pctx, metric_expr, runtime) == 0) { char *unit; -- cgit v1.2.3 From 6d432c4c8aa5660d8f9f43326db8350b48dcb6f5 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Tue, 2 Jun 2020 23:47:39 +0200 Subject: perf tools: Add test_generic_metric function Adding test_generic_metric that prepares and runs given metric over the data from struct runtime_stat object. Signed-off-by: Jiri Olsa Acked-by: Ian Rogers Cc: Alexander Shishkin Cc: Andi Kleen Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/20200602214741.1218986-12-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/stat-shadow.c | 14 ++++++++++++++ tools/perf/util/stat.h | 3 +++ 2 files changed, 17 insertions(+) (limited to 'tools/perf/util/stat-shadow.c') diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index 27be7ce2fff4..8fdef47005e6 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -842,6 +842,20 @@ static void generic_metric(struct perf_stat_config *config, expr__ctx_clear(&pctx); } +double test_generic_metric(struct metric_expr *mexp, int cpu, struct runtime_stat *st) +{ + struct expr_parse_ctx pctx; + double ratio; + + if (prepare_metric(mexp->metric_events, &pctx, cpu, st) < 0) + return 0.; + + if (expr__parse(&ratio, &pctx, mexp->metric_expr, 1)) + return 0.; + + return ratio; +} + void perf_stat__print_shadow_stats(struct perf_stat_config *config, struct evsel *evsel, double avg, int cpu, diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h index f75ae679eb28..6911c7249199 100644 --- a/tools/perf/util/stat.h +++ b/tools/perf/util/stat.h @@ -230,4 +230,7 @@ perf_evlist__print_counters(struct evlist *evlist, struct target *_target, struct timespec *ts, int argc, const char **argv); + +struct metric_expr; +double test_generic_metric(struct metric_expr *mexp, int cpu, struct runtime_stat *st); #endif -- cgit v1.2.3 From 2c46f54249c6e86d8d81b5ea2452319f197caf17 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Sun, 12 Jul 2020 15:26:17 +0200 Subject: perf metric: Rename expr__add_id() to expr__add_val() Rename expr__add_id() to expr__add_val() so we can use expr__add_id() to actually add just the id without any value in following changes. There's no functional change. Signed-off-by: Jiri Olsa Acked-by: Ian Rogers Cc: Alexander Shishkin Cc: Andi Kleen Cc: John Garry Cc: Kajol Jain Cc: Michael Petlan Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/20200712132634.138901-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/expr.c | 4 ++-- tools/perf/tests/pmu-events.c | 4 ++-- tools/perf/util/expr.c | 2 +- tools/perf/util/expr.h | 2 +- tools/perf/util/expr.y | 2 +- tools/perf/util/stat-shadow.c | 4 ++-- 6 files changed, 9 insertions(+), 9 deletions(-) (limited to 'tools/perf/util/stat-shadow.c') diff --git a/tools/perf/tests/expr.c b/tools/perf/tests/expr.c index b7e5ef3007fc..d13fc1dfd5ef 100644 --- a/tools/perf/tests/expr.c +++ b/tools/perf/tests/expr.c @@ -24,8 +24,8 @@ int test__expr(struct test *t __maybe_unused, int subtest __maybe_unused) struct expr_parse_ctx ctx; expr__ctx_init(&ctx); - expr__add_id(&ctx, strdup("FOO"), 1); - expr__add_id(&ctx, strdup("BAR"), 2); + expr__add_id_val(&ctx, strdup("FOO"), 1); + expr__add_id_val(&ctx, strdup("BAR"), 2); ret = test(&ctx, "1+1", 2); ret |= test(&ctx, "FOO+BAR", 3); diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c index b66b021476ec..eb19f9a0bc15 100644 --- a/tools/perf/tests/pmu-events.c +++ b/tools/perf/tests/pmu-events.c @@ -492,7 +492,7 @@ static int test_parsing(void) */ k = 1; hashmap__for_each_entry((&ctx.ids), cur, bkt) - expr__add_id(&ctx, strdup(cur->key), k++); + expr__add_id_val(&ctx, strdup(cur->key), k++); hashmap__for_each_entry((&ctx.ids), cur, bkt) { if (check_parse_cpu(cur->key, map == cpus_map, @@ -547,7 +547,7 @@ static int metric_parse_fake(const char *str) */ i = 1; hashmap__for_each_entry((&ctx.ids), cur, bkt) - expr__add_id(&ctx, strdup(cur->key), i++); + expr__add_id_val(&ctx, strdup(cur->key), i++); hashmap__for_each_entry((&ctx.ids), cur, bkt) { if (check_parse_fake(cur->key)) { diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c index e8f777830a23..9116a3a01eea 100644 --- a/tools/perf/util/expr.c +++ b/tools/perf/util/expr.c @@ -33,7 +33,7 @@ static bool key_equal(const void *key1, const void *key2, } /* Caller must make sure id is allocated */ -int expr__add_id(struct expr_parse_ctx *ctx, const char *name, double val) +int expr__add_id_val(struct expr_parse_ctx *ctx, const char *name, double val) { double *val_ptr = NULL, *old_val = NULL; char *old_key = NULL; diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h index 8a2c1074f90f..bb6bac836b48 100644 --- a/tools/perf/util/expr.h +++ b/tools/perf/util/expr.h @@ -22,7 +22,7 @@ struct expr_scanner_ctx { void expr__ctx_init(struct expr_parse_ctx *ctx); void expr__ctx_clear(struct expr_parse_ctx *ctx); -int expr__add_id(struct expr_parse_ctx *ctx, const char *id, double val); +int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val); int expr__get_id(struct expr_parse_ctx *ctx, const char *id, double *val_ptr); int expr__parse(double *final_val, struct expr_parse_ctx *ctx, const char *expr, int runtime); diff --git a/tools/perf/util/expr.y b/tools/perf/util/expr.y index 5fcb98800f9c..b2b3420ea6ec 100644 --- a/tools/perf/util/expr.y +++ b/tools/perf/util/expr.y @@ -69,7 +69,7 @@ all_other: all_other other other: ID { - expr__add_id(ctx, $1, 0.0); + expr__add_id_val(ctx, $1, 0.0); } | MIN | MAX | IF | ELSE | SMT_ON | NUMBER | '|' | '^' | '&' | '-' | '+' | '*' | '/' | '%' | '(' | ')' | ',' diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index 8fdef47005e6..fc9ac4b4218e 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -773,9 +773,9 @@ static int prepare_metric(struct evsel **metric_events, *pn = 0; if (metric_total) - expr__add_id(pctx, n, metric_total); + expr__add_id_val(pctx, n, metric_total); else - expr__add_id(pctx, n, avg_stats(stats)*scale); + expr__add_id_val(pctx, n, avg_stats(stats)*scale); } return i; -- cgit v1.2.3 From fc393839c11bbe2c7f1a44ab34e5f2a219d8366e Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Sun, 19 Jul 2020 20:13:11 +0200 Subject: perf metric: Add referenced metrics to hash data Adding referenced metrics to the parsing context so they can be resolved during the metric processing. Adding expr__add_ref function to store referenced metrics into parse context. Signed-off-by: Jiri Olsa Reviewed-by: Kajol Jain Acked-by: Ian Rogers Cc: Alexander Shishkin Cc: Andi Kleen Cc: John Garry Cc: Michael Petlan Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/20200719181320.785305-11-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/expr.c | 54 +++++++++++++++++++++++++++++++++++++++++++ tools/perf/util/expr.h | 13 ++++++++++- tools/perf/util/stat-shadow.c | 20 +++++++++++----- 3 files changed, 80 insertions(+), 7 deletions(-) (limited to 'tools/perf/util/stat-shadow.c') diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c index f726211f49d4..d3997c2b4a90 100644 --- a/tools/perf/util/expr.c +++ b/tools/perf/util/expr.c @@ -4,10 +4,14 @@ #include #include #include +#include "metricgroup.h" +#include "debug.h" #include "expr.h" #include "expr-bison.h" #include "expr-flex.h" #include +#include +#include #ifdef PARSER_DEBUG extern int expr_debug; @@ -63,6 +67,7 @@ int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val) if (!data_ptr) return -ENOMEM; data_ptr->val = val; + data_ptr->is_ref = false; ret = hashmap__set(&ctx->ids, id, data_ptr, (const void **)&old_key, (void **)&old_data); @@ -73,6 +78,55 @@ int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val) return ret; } +int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref) +{ + struct expr_id_data *data_ptr = NULL, *old_data = NULL; + char *old_key = NULL; + char *name, *p; + int ret; + + data_ptr = zalloc(sizeof(*data_ptr)); + if (!data_ptr) + return -ENOMEM; + + name = strdup(ref->metric_name); + if (!name) { + free(data_ptr); + return -ENOMEM; + } + + /* + * The jevents tool converts all metric expressions + * to lowercase, including metric references, hence + * we need to add lowercase name for metric, so it's + * properly found. + */ + for (p = name; *p; p++) + *p = tolower(*p); + + /* + * Intentionally passing just const char pointers, + * originally from 'struct pmu_event' object. + * We don't need to change them, so there's no + * need to create our own copy. + */ + data_ptr->ref.metric_name = ref->metric_name; + data_ptr->ref.metric_expr = ref->metric_expr; + data_ptr->is_ref = true; + + ret = hashmap__set(&ctx->ids, name, data_ptr, + (const void **)&old_key, (void **)&old_data); + if (ret) + free(data_ptr); + + pr_debug2("adding ref metric %s: %s\n", + ref->metric_name, ref->metric_expr); + + free(old_key); + free(old_data); + return ret; +} + int expr__get_id(struct expr_parse_ctx *ctx, const char *id, struct expr_id_data **data) { diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h index 2462abd0ac65..81d04ff7f857 100644 --- a/tools/perf/util/expr.h +++ b/tools/perf/util/expr.h @@ -11,12 +11,22 @@ #include "util/hashmap.h" //#endif +struct metric_ref; + struct expr_parse_ctx { struct hashmap ids; }; struct expr_id_data { - double val; + union { + double val; + struct { + const char *metric_name; + const char *metric_expr; + } ref; + }; + + bool is_ref; }; struct expr_scanner_ctx { @@ -29,6 +39,7 @@ void expr__ctx_clear(struct expr_parse_ctx *ctx); void expr__del_id(struct expr_parse_ctx *ctx, const char *id); int expr__add_id(struct expr_parse_ctx *ctx, const char *id); int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val); +int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref); int expr__get_id(struct expr_parse_ctx *ctx, const char *id, struct expr_id_data **data); int expr__parse(double *final_val, struct expr_parse_ctx *ctx, diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index fc9ac4b4218e..e1ba6c1b916a 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -731,13 +731,14 @@ static void print_smi_cost(struct perf_stat_config *config, } static int prepare_metric(struct evsel **metric_events, + struct metric_ref *metric_refs, struct expr_parse_ctx *pctx, int cpu, struct runtime_stat *st) { double scale; char *n, *pn; - int i; + int i, j, ret; expr__ctx_init(pctx); for (i = 0; metric_events[i]; i++) { @@ -778,12 +779,19 @@ static int prepare_metric(struct evsel **metric_events, expr__add_id_val(pctx, n, avg_stats(stats)*scale); } + for (j = 0; metric_refs && metric_refs[j].metric_name; j++) { + ret = expr__add_ref(pctx, &metric_refs[j]); + if (ret) + return ret; + } + return i; } static void generic_metric(struct perf_stat_config *config, const char *metric_expr, struct evsel **metric_events, + struct metric_ref *metric_refs, char *name, const char *metric_name, const char *metric_unit, @@ -798,7 +806,7 @@ static void generic_metric(struct perf_stat_config *config, int i; void *ctxp = out->ctx; - i = prepare_metric(metric_events, &pctx, cpu, st); + i = prepare_metric(metric_events, metric_refs, &pctx, cpu, st); if (i < 0) return; @@ -847,7 +855,7 @@ double test_generic_metric(struct metric_expr *mexp, int cpu, struct runtime_sta struct expr_parse_ctx pctx; double ratio; - if (prepare_metric(mexp->metric_events, &pctx, cpu, st) < 0) + if (prepare_metric(mexp->metric_events, mexp->metric_refs, &pctx, cpu, st) < 0) return 0.; if (expr__parse(&ratio, &pctx, mexp->metric_expr, 1)) @@ -1064,8 +1072,8 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config, else print_metric(config, ctxp, NULL, NULL, name, 0); } else if (evsel->metric_expr) { - generic_metric(config, evsel->metric_expr, evsel->metric_events, evsel->name, - evsel->metric_name, NULL, 1, cpu, out, st); + generic_metric(config, evsel->metric_expr, evsel->metric_events, NULL, + evsel->name, evsel->metric_name, NULL, 1, cpu, out, st); } else if (runtime_stat_n(st, STAT_NSECS, 0, cpu) != 0) { char unit = 'M'; char unit_buf[10]; @@ -1093,7 +1101,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config, if (num++ > 0) out->new_line(config, ctxp); generic_metric(config, mexp->metric_expr, mexp->metric_events, - evsel->name, mexp->metric_name, + mexp->metric_refs, evsel->name, mexp->metric_name, mexp->metric_unit, mexp->runtime, cpu, out, st); } } -- cgit v1.2.3