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Message-ID: <81e85195-e65f-a7bc-55bd-426edb4da35b@linux.intel.com>
Date: Mon, 1 Jun 2020 18:53:45 +0300
From: Alexey Budankov <alexey.budankov@...ux.intel.com>
To: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Andi Kleen <ak@...ux.intel.com>,
linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH v5 04/13] perf stat: factor out body of event handling loop
for system wide
Introduce process_timeout() and process_interval() functions that
factor out body of event handling loop for attach and system wide
monitoring use cases.
Signed-off-by: Alexey Budankov <alexey.budankov@...ux.intel.com>
---
tools/perf/builtin-stat.c | 28 ++++++++++++++++++++--------
1 file changed, 20 insertions(+), 8 deletions(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index b2b79aa161dd..834a3d791ee5 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -422,6 +422,23 @@ static void process_interval(void)
print_counters(&rs, 0, NULL);
}
+static bool print_interval(unsigned int interval, int *times)
+{
+ if (interval) {
+ process_interval();
+ if (interval_count && !(--(*times)))
+ return true;
+ }
+ return false;
+}
+
+static bool process_timeout(bool timeout, unsigned int interval, int *times)
+{
+ if (timeout)
+ return true;
+ return print_interval(interval, times);
+}
+
static void enable_counters(void)
{
if (stat_config.initial_delay)
@@ -558,6 +575,7 @@ static int __run_perf_stat(int argc, const char **argv, int run_idx)
struct affinity affinity;
int i, cpu;
bool second_pass = false;
+ bool stop = false;
if (interval) {
ts.tv_sec = interval / USEC_PER_MSEC;
@@ -752,17 +770,11 @@ static int __run_perf_stat(int argc, const char **argv, int run_idx)
psignal(WTERMSIG(status), argv[0]);
} else {
enable_counters();
- while (!done) {
+ while (!done && !stop) {
nanosleep(&ts, NULL);
if (!is_target_alive(&target, evsel_list->core.threads))
break;
- if (timeout)
- break;
- if (interval) {
- process_interval();
- if (interval_count && !(--times))
- break;
- }
+ stop = process_timeout(timeout, interval, ×);
}
}
--
2.24.1
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