[tip:perf/core] perf stat: Introduce struct perf_stat_config

tip-bot for Jiri Olsa
2015-08-07T07:17:35Z

Commit-ID: 421a50f3fafaf271bb3293378eaafca71337dfec
Gitweb: http://git.kernel.org/tip/421a50f3fafaf271bb3293378eaafca71337dfec
Author: Jiri Olsa <jolsa@kernel.org>
AuthorDate: Tue, 21 Jul 2015 14:31:22 +0200
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 6 Aug 2015 16:02:29 -0300

perf stat: Introduce struct perf_stat_config

Moving 'aggr_mode' into new struct. The point is to centralize the base
stat config so it could be used localy together with other stat routines
in other parts of perf code.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1437481927-29538-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-stat.c | 39 ++++++++++++++++++++++-----------------
tools/perf/util/stat.h | 4 ++++
2 files changed, 26 insertions(+), 17 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index d99d850..bafb830 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -102,7 +102,6 @@ static struct target target = {
static int run_count = 1;
static bool no_inherit = false;
static bool scale = true;
-static enum aggr_mode aggr_mode = AGGR_GLOBAL;
static volatile pid_t child_pid = -1;
static bool null_run = false;
static int detailed_run = 0;
@@ -126,6 +125,10 @@ static int (*aggr_get_id)(struct cpu_map *m, int cpu);

static volatile int done = 0;

+static struct perf_stat_config stat_config = {
+ .aggr_mode = AGGR_GLOBAL,
+};
+
static inline void diff_timespec(struct timespec *r, struct timespec *a,
struct timespec *b)
{
@@ -230,7 +233,7 @@ process_counter_values(struct perf_evsel *evsel, int cpu, int thread,
if (skip)
count = &zero;

- switch (aggr_mode) {
+ switch (stat_config.aggr_mode) {
case AGGR_THREAD:
case AGGR_CORE:
case AGGR_SOCKET:
@@ -238,7 +241,7 @@ process_counter_values(struct perf_evsel *evsel, int cpu, int thread,
if (!evsel->snapshot)
perf_evsel__compute_deltas(evsel, cpu, thread, count);
perf_counts_values__scale(count, scale, NULL);
- if (aggr_mode == AGGR_NONE)
+ if (stat_config.aggr_mode == AGGR_NONE)
perf_stat__update_shadow_stats(evsel, count->values, cpu);
break;
case AGGR_GLOBAL:
@@ -291,7 +294,7 @@ static int process_counter(struct perf_evsel *counter)
if (ret)
return ret;

- if (aggr_mode != AGGR_GLOBAL)
+ if (stat_config.aggr_mode != AGGR_GLOBAL)
return 0;

if (!counter->snapshot)
@@ -578,7 +581,7 @@ static void print_noise(struct perf_evsel *evsel, double avg)

static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
{
- switch (aggr_mode) {
+ switch (stat_config.aggr_mode) {
case AGGR_CORE:
fprintf(output, "S%d-C%*d%s%*d%s",
cpu_map__id_to_socket(id),
@@ -670,7 +673,7 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)

aggr_printout(evsel, id, nr);

- if (aggr_mode == AGGR_GLOBAL)
+ if (stat_config.aggr_mode == AGGR_GLOBAL)
cpu = 0;

fprintf(output, fmt, avg, csv_sep);
@@ -688,7 +691,8 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
if (csv_output || interval)
return;

- perf_stat__print_shadow_stats(output, evsel, avg, cpu, aggr_mode);
+ perf_stat__print_shadow_stats(output, evsel, avg, cpu,
+ stat_config.aggr_mode);
}

static void print_aggr(char *prefix)
@@ -909,7 +913,7 @@ static void print_interval(char *prefix, struct timespec *ts)
sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep);

if (num_print_interval == 0 && !csv_output) {
- switch (aggr_mode) {
+ switch (stat_config.aggr_mode) {
case AGGR_SOCKET:
fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit");
break;
@@ -985,7 +989,7 @@ static void print_counters(struct timespec *ts, int argc, const char **argv)
else
print_header(argc, argv);

- switch (aggr_mode) {
+ switch (stat_config.aggr_mode) {
case AGGR_CORE:
case AGGR_SOCKET:
print_aggr(prefix);
@@ -1064,7 +1068,7 @@ static int stat__set_big_num(const struct option *opt __maybe_unused,

static int perf_stat_init_aggr_mode(void)
{
- switch (aggr_mode) {
+ switch (stat_config.aggr_mode) {
case AGGR_SOCKET:
if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) {
perror("cannot build socket map");
@@ -1286,7 +1290,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
stat__set_big_num),
OPT_STRING('C', "cpu", &target.cpu_list, "cpu",
"list of cpus to monitor in system-wide"),
- OPT_SET_UINT('A', "no-aggr", &aggr_mode,
+ OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode,
"disable CPU count aggregation", AGGR_NONE),
OPT_STRING('x', "field-separator", &csv_sep, "separator",
"print counts with custom separator"),
@@ -1302,11 +1306,11 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
"command to run after to the measured command"),
OPT_UINTEGER('I', "interval-print", &interval,
"print counts at regular interval in ms (>= 100)"),
- OPT_SET_UINT(0, "per-socket", &aggr_mode,
+ OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode,
"aggregate counts per processor socket", AGGR_SOCKET),
- OPT_SET_UINT(0, "per-core", &aggr_mode,
+ OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode,
"aggregate counts per physical processor core", AGGR_CORE),
- OPT_SET_UINT(0, "per-thread", &aggr_mode,
+ OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode,
"aggregate counts per thread", AGGR_THREAD),
OPT_UINTEGER('D', "delay", &initial_delay,
"ms to wait before starting measurement after program start"),
@@ -1399,7 +1403,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
run_count = 1;
}

- if ((aggr_mode == AGGR_THREAD) && !target__has_task(&target)) {
+ if ((stat_config.aggr_mode == AGGR_THREAD) && !target__has_task(&target)) {
fprintf(stderr, "The --per-thread option is only available "
"when monitoring via -p -t options.\n");
parse_options_usage(NULL, options, "p", 1);
@@ -1411,7 +1415,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
* no_aggr, cgroup are for system-wide only
* --per-thread is aggregated per thread, we dont mix it with cpu mode
*/
- if (((aggr_mode != AGGR_GLOBAL && aggr_mode != AGGR_THREAD) || nr_cgroups) &&
+ if (((stat_config.aggr_mode != AGGR_GLOBAL &&
+ stat_config.aggr_mode != AGGR_THREAD) || nr_cgroups) &&
!target__has_cpu(&target)) {
fprintf(stderr, "both cgroup and no-aggregation "
"modes only available in system-wide mode\n");
@@ -1444,7 +1449,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
* Initialize thread_map with comm names,
* so we could print it out on output.
*/
- if (aggr_mode == AGGR_THREAD)
+ if (stat_config.aggr_mode == AGGR_THREAD)
thread_map__read_comms(evsel_list->threads);

if (interval && interval < 100) {
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 1cfbe0a..078bee4 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -50,6 +50,10 @@ struct perf_counts {
struct xyarray *values;
};

+struct perf_stat_config {
+ enum aggr_mode aggr_mode;
+};
+
static inline struct perf_counts_values*
perf_counts(struct perf_counts *counts, int cpu, int thread)
{