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 v7 12/13] perf record: implement control commands handling
Date: Wed, 3 Jun 2020 19:01:16 +0300 [thread overview]
Message-ID: <3f442038-a879-73fa-7762-a3f0c7091f47@linux.intel.com> (raw)
In-Reply-To: <5de4b954-24f0-1e8d-5a0d-7b12783b8218@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:[~2020-06-03 16:01 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-03 15:47 [PATCH v7 00/13] perf: support enable and disable commands in stat and record modes Alexey Budankov
2020-06-03 15:52 ` [PATCH v7 01/13] tools/libperf: introduce notion of static polled file descriptors Alexey Budankov
2020-06-05 10:50 ` Jiri Olsa
2020-06-05 11:38 ` Jiri Olsa
2020-06-05 16:15 ` Alexey Budankov
2020-06-08 8:08 ` Alexey Budankov
2020-06-08 8:43 ` Jiri Olsa
2020-06-08 9:54 ` Alexey Budankov
2020-06-08 15:05 ` Alexey Budankov
2020-06-08 16:07 ` Jiri Olsa
2020-06-08 16:43 ` Alexey Budankov
2020-06-08 17:18 ` Alexey Budankov
2020-06-09 14:56 ` Jiri Olsa
2020-06-09 18:51 ` Alexey Budankov
2020-06-15 13:13 ` Alexey Budankov
2020-06-15 17:38 ` Alexey Budankov
2020-06-15 5:20 ` Alexey Budankov
2020-06-15 12:30 ` Jiri Olsa
2020-06-15 14:37 ` Alexey Budankov
2020-06-15 16:58 ` Jiri Olsa
2020-06-17 9:27 ` Jiri Olsa
2020-06-17 9:39 ` Alexey Budankov
2020-06-22 9:47 ` Alexey Budankov
2020-06-22 10:21 ` Jiri Olsa
2020-06-22 10:50 ` Alexey Budankov
2020-06-22 12:11 ` Jiri Olsa
2020-06-22 14:04 ` Alexey Budankov
2020-06-23 14:54 ` Jiri Olsa
2020-06-05 11:50 ` Alexey Budankov
2020-06-03 15:53 ` [PATCH v7 02/13] perf evlist: introduce control " Alexey Budankov
2020-06-03 15:54 ` [PATCH v7 03/13] perf evlist: implement control command handling functions Alexey Budankov
2020-06-23 14:54 ` Jiri Olsa
2020-06-24 11:48 ` Alexey Budankov
2020-06-03 15:55 ` [PATCH v7 04/13] perf stat: factor out body of event handling loop for system wide Alexey Budankov
2020-06-03 15:56 ` [PATCH v7 05/13] perf stat: move target check to loop control statement Alexey Budankov
2020-06-03 15:57 ` [PATCH v7 06/13] perf stat: factor out body of event handling loop for fork case Alexey Budankov
2020-06-03 15:57 ` [PATCH v7 07/13] perf stat: factor out event handling loop into dispatch_events() Alexey Budankov
2020-06-03 15:58 ` [PATCH v7 08/13] perf stat: extend -D,--delay option with -1 value Alexey Budankov
2020-06-03 15:59 ` [PATCH v7 09/13] perf stat: implement control commands handling Alexey Budankov
2020-06-03 15:59 ` [PATCH v7 10/13] perf stat: introduce --ctl-fd[-ack] options Alexey Budankov
2020-06-03 16:00 ` [PATCH v7 11/13] perf record: extend -D,--delay option with -1 value Alexey Budankov
2020-06-03 16:01 ` Alexey Budankov [this message]
2020-06-03 16:02 ` [PATCH v7 13/13] perf record: introduce --ctl-fd[-ack] options Alexey Budankov
2020-06-05 7:47 ` [PATCH v7 00/13] perf: support enable and disable commands in stat and record modes Alexey Budankov
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