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 v6 12/13] perf record: implement control commands handling
Date: Mon, 1 Jun 2020 23:19:39 +0300 [thread overview]
Message-ID: <f17814ad-a846-0172-b8f0-99f89d952b39@linux.intel.com> (raw)
In-Reply-To: <f8e3a714-d9b1-4647-e1d2-9981cbaa83ec@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 d0b29a1070a0..0394e068dde8 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -1527,6 +1527,7 @@ 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);
@@ -1830,6 +1831,21 @@ 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:[~2020-06-01 20:19 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-01 20:01 [PATCH v6 00/13] perf: support enable and disable commands in stat and record modes Alexey Budankov
2020-06-01 20:05 ` [PATCH v6 01/13] tools/libperf: introduce notion of static polled file descriptors Alexey Budankov
2020-06-03 11:38 ` Adrian Hunter
2020-06-03 12:01 ` Alexey Budankov
2020-06-03 12:23 ` Adrian Hunter
2020-06-03 12:30 ` Hunter, Adrian
2020-06-03 12:52 ` Alexey Budankov
2020-06-03 15:53 ` Adrian Hunter
2020-06-03 17:00 ` Alexey Budankov
2020-06-01 20:06 ` [PATCH v6 02/13] perf evlist: introduce control " Alexey Budankov
2020-06-01 20:07 ` [PATCH v6 03/13] perf evlist: implement control command handling functions Alexey Budankov
2020-06-01 20:08 ` [PATCH v6 04/13] perf stat: factor out body of event handling loop for system wide Alexey Budankov
2020-06-01 20:08 ` [PATCH v6 05/13] perf stat: move target check to loop control statement Alexey Budankov
2020-06-01 20:09 ` [PATCH v6 06/13] perf stat: factor out body of event handling loop for fork case Alexey Budankov
2020-06-01 20:10 ` [PATCH v6 07/13] perf stat: factor out event handling loop into dispatch_events() Alexey Budankov
2020-06-01 20:15 ` [PATCH v6 08/13] perf stat: extend -D,--delay option with -1 value Alexey Budankov
2020-06-01 20:17 ` [PATCH v6 09/13] perf stat: implement control commands handling Alexey Budankov
2020-06-01 20:17 ` [PATCH v6 10/13] perf stat: introduce --ctl-fd[-ack] options Alexey Budankov
2020-06-01 20:18 ` [PATCH v6 11/13] perf record: extend -D,--delay option with -1 value Alexey Budankov
2020-06-01 20:19 ` Alexey Budankov [this message]
2020-06-01 20:20 ` [PATCH v6 13/13] perf record: introduce --ctl-fd[-ack] options Alexey Budankov
2020-06-03 12:24 ` Adrian Hunter
2020-06-03 12:52 ` Alexey Budankov
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