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Date: Fri, 4 Sep 2015 22:06:40 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org, Kan Liang <kan.liang@...el.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Andi Kleen <ak@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Stephane Eranian <eranian@...gle.com>,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 12/15] perf report: Introduce --socket-filter option
From: Kan Liang <kan.liang@...el.com>
Introduce --socket-filter option for 'perf report' to only show entries
for a processor socket that match this filter.
$ perf report --socket-filter 1 --stdio
# To display the perf.data header info, please use --header/--header-only options.
#
# Total Lost Samples: 0
#
# Samples: 752 of event 'cycles'
# Event count (approx.): 350995599
# Processor Socket: 1
#
# Overhead Command Shared Object Symbol
# ........ ......... ................ .................................
#
97.02% test test [.] plusB_c
0.97% test test [.] plusA_c
0.23% swapper [kernel.vmlinux] [k] acpi_idle_do_entry
0.09% rcu_sched [kernel.vmlinux] [k] dyntick_save_progress_counter
0.01% swapper [kernel.vmlinux] [k] task_waking_fair
0.00% swapper [kernel.vmlinux] [k] run_timer_softirq
Signed-off-by: Kan Liang <kan.liang@...el.com>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Andi Kleen <ak@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/r/1441377946-44429-3-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/Documentation/perf-report.txt | 3 +++
tools/perf/builtin-report.c | 11 +++++++++++
tools/perf/ui/browsers/hists.c | 4 ++++
tools/perf/util/hist.c | 16 ++++++++++++++++
tools/perf/util/hist.h | 4 +++-
5 files changed, 37 insertions(+), 1 deletion(-)
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 92361a7771f4..b941d5e07e28 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -350,6 +350,9 @@ include::itrace.txt[]
This option extends the perf report to show reference callgraphs,
which collected by reference event, in no callgraph event.
+--socket-filter::
+ Only report the samples on the processor socket that match with this filter
+
include::callchain-overhead-calculation.txt[]
SEE ALSO
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index affd70d064bc..4b432453922f 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -62,6 +62,7 @@ struct report {
float min_percent;
u64 nr_entries;
u64 queue_size;
+ int socket_filter;
DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
};
@@ -290,6 +291,7 @@ static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report
struct perf_evsel *evsel = hists_to_evsel(hists);
char buf[512];
size_t size = sizeof(buf);
+ int socket = hists->socket_filter;
if (symbol_conf.filter_relative) {
nr_samples = hists->stats.nr_non_filtered_samples;
@@ -330,6 +332,10 @@ static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report
ret += fprintf(fp, "\n# Sort order : %s", sort_order ? : default_mem_sort_order);
} else
ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
+
+ if (socket > -1)
+ ret += fprintf(fp, "\n# Processor Socket: %d", socket);
+
return ret + fprintf(fp, "\n#\n");
}
@@ -454,6 +460,8 @@ static void report__collapse_hists(struct report *rep)
if (pos->idx == 0)
hists->symbol_filter_str = rep->symbol_filter_str;
+ hists->socket_filter = rep->socket_filter;
+
hists__collapse_resort(hists, &prog);
/* Non-group events are considered as leader */
@@ -639,6 +647,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
},
.max_stack = PERF_MAX_STACK_DEPTH,
.pretty_printing_style = "normal",
+ .socket_filter = -1,
};
const struct option options[] = {
OPT_STRING('i', "input", &input_name, "file",
@@ -751,6 +760,8 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
"Show full source file name path for source lines"),
OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
"Show callgraph from reference event"),
+ OPT_INTEGER(0, "socket-filter", &report.socket_filter,
+ "only show processor socket that match with this filter"),
OPT_END()
};
struct perf_data_file file = {
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index cf86f2d3a5e7..457f24c8fbe0 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1261,6 +1261,7 @@ static int hists__browser_title(struct hists *hists,
int printed;
const struct dso *dso = hists->dso_filter;
const struct thread *thread = hists->thread_filter;
+ int socket = hists->socket_filter;
unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
u64 nr_events = hists->stats.total_period;
struct perf_evsel *evsel = hists_to_evsel(hists);
@@ -1314,6 +1315,9 @@ static int hists__browser_title(struct hists *hists,
if (dso)
printed += scnprintf(bf + printed, size - printed,
", DSO: %s", dso->short_name);
+ if (socket > -1)
+ printed += scnprintf(bf + printed, size - printed,
+ ", Processor Socket: %d", socket);
if (!is_report_browser(hbt)) {
struct perf_top *top = hbt->arg;
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index b5440a5b5240..58687a10e03f 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -15,6 +15,8 @@ static bool hists__filter_entry_by_thread(struct hists *hists,
struct hist_entry *he);
static bool hists__filter_entry_by_symbol(struct hists *hists,
struct hist_entry *he);
+static bool hists__filter_entry_by_socket(struct hists *hists,
+ struct hist_entry *he);
u16 hists__col_len(struct hists *hists, enum hist_column col)
{
@@ -1026,6 +1028,7 @@ static void hists__apply_filters(struct hists *hists, struct hist_entry *he)
hists__filter_entry_by_dso(hists, he);
hists__filter_entry_by_thread(hists, he);
hists__filter_entry_by_symbol(hists, he);
+ hists__filter_entry_by_socket(hists, he);
}
void hists__collapse_resort(struct hists *hists, struct ui_progress *prog)
@@ -1294,6 +1297,18 @@ void hists__filter_by_symbol(struct hists *hists)
}
}
+static bool hists__filter_entry_by_socket(struct hists *hists,
+ struct hist_entry *he)
+{
+ if ((hists->socket_filter > -1) &&
+ (he->socket != hists->socket_filter)) {
+ he->filtered |= (1 << HIST_FILTER__SOCKET);
+ return true;
+ }
+
+ return false;
+}
+
void events_stats__inc(struct events_stats *stats, u32 type)
{
++stats->nr_events[0];
@@ -1519,6 +1534,7 @@ static int hists_evsel__init(struct perf_evsel *evsel)
hists->entries_collapsed = RB_ROOT;
hists->entries = RB_ROOT;
pthread_mutex_init(&hists->lock, NULL);
+ hists->socket_filter = -1;
return 0;
}
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 5d04d28eedd7..ef682f210923 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -20,6 +20,7 @@ enum hist_filter {
HIST_FILTER__SYMBOL,
HIST_FILTER__GUEST,
HIST_FILTER__HOST,
+ HIST_FILTER__SOCKET,
};
enum hist_column {
@@ -71,6 +72,7 @@ struct hists {
struct events_stats stats;
u64 event_stream;
u16 col_len[HISTC_NR_COLS];
+ int socket_filter;
};
struct hist_entry_iter;
@@ -149,7 +151,7 @@ void hists__filter_by_symbol(struct hists *hists);
static inline bool hists__has_filter(struct hists *hists)
{
return hists->thread_filter || hists->dso_filter ||
- hists->symbol_filter_str;
+ hists->symbol_filter_str || (hists->socket_filter > -1);
}
u16 hists__col_len(struct hists *hists, enum hist_column col);
--
2.1.0
--
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