From: Alexey Budankov <alexey.budankov@linux.intel.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>, Andi Kleen <ak@linux.intel.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: [PATCH v4 09/10] perf record: implement control commands handling
Date: Mon, 25 May 2020 17:23:04 +0300 [thread overview]
Message-ID: <e885da31-6f25-5061-e20b-6f257203a174@linux.intel.com> (raw)
In-Reply-To: <653fe5f3-c986-a841-1ed8-0a7d2fa24c00@linux.intel.com>
Implement handling of 'enable' and 'disable' control commands
coming from control file descriptor.
Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
---
tools/perf/builtin-record.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 8c3ec29e7e80..1ff3b7a77283 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -1526,6 +1526,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
bool disabled = false, draining = false;
int fd;
float ratio = 0;
+ enum evlist_ctl_cmd cmd = EVLIST_CTL_CMD_UNSUPPORTED;
atexit(record__sig_exit);
signal(SIGCHLD, sig_handler);
@@ -1842,6 +1843,21 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
alarm(rec->switch_output.time);
}
+ if (evlist__ctlfd_process(rec->evlist, &cmd) > 0) {
+ switch (cmd) {
+ case EVLIST_CTL_CMD_ENABLE:
+ pr_info(EVLIST_ENABLED_MSG);
+ break;
+ case EVLIST_CTL_CMD_DISABLE:
+ pr_info(EVLIST_DISABLED_MSG);
+ break;
+ case EVLIST_CTL_CMD_ACK:
+ case EVLIST_CTL_CMD_UNSUPPORTED:
+ default:
+ break;
+ }
+ }
+
if (hits == rec->samples) {
if (done || draining)
break;
--
2.24.1
next prev parent reply other threads:[~2020-05-25 14:23 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-25 14:11 [PATCH v4 00/10] perf: support enable and disable commands in stat and record modes Alexey Budankov
2020-05-25 14:17 ` [PATCH v4 01/10] tools/libperf: introduce static poll file descriptors Alexey Budankov
2020-05-31 18:19 ` Jiri Olsa
2020-06-01 7:34 ` Alexey Budankov
2020-05-25 14:18 ` [PATCH v4 02/10] perf evlist: introduce control " Alexey Budankov
2020-05-25 14:19 ` [PATCH v4 03/10] perf evlist: implement control command handling functions Alexey Budankov
2020-05-25 14:19 ` [PATCH v4 04/10] perf stat: factor out event handling loop into a function Alexey Budankov
2020-05-31 18:19 ` Jiri Olsa
2020-06-01 7:38 ` Alexey Budankov
2020-06-01 16:10 ` Alexey Budankov
2020-05-25 14:20 ` [PATCH v4 05/10] perf stat: extend -D,--delay option with -1 value Alexey Budankov
2020-05-25 14:21 ` [PATCH v4 06/10] perf stat: implement control commands handling Alexey Budankov
2020-05-25 14:21 ` [PATCH v4 07/10] perf stat: introduce --ctl-fd[-ack] options Alexey Budankov
2020-05-25 14:22 ` [PATCH v4 08/10] perf record: extend -D,--delay option with -1 value Alexey Budankov
2020-05-25 14:23 ` Alexey Budankov [this message]
2020-05-25 14:23 ` [PATCH v4 10/10] perf record: introduce --ctl-fd[-ack] options Alexey Budankov
2020-06-03 12:05 ` Adrian Hunter
2020-06-03 12:52 ` Alexey Budankov
2020-06-03 15:44 ` Adrian Hunter
2020-06-03 15:52 ` Alexey Budankov
2020-05-27 9:27 ` [PATCH v4 00/10] perf: support enable and disable commands in stat and record modes Alexey Budankov
2020-05-27 10:29 ` Jiri Olsa
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