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 v5 13/13] perf record: introduce --ctl-fd[-ack] options
Date: Mon, 1 Jun 2020 19:05:04 +0300 [thread overview]
Message-ID: <8ffc9f9f-af58-deea-428b-f8a69004e3cb@linux.intel.com> (raw)
In-Reply-To: <e5cac8dd-7aa4-ec7c-671c-07756907acba@linux.intel.com>
Introduce --ctl-fd[-ack] options to pass open file descriptors numbers
from command line. Extend perf-record.txt file with --ctl-fd[-ack]
options description. Document possible usage model introduced by
--ctl-fd[-ack] options by providing example bash shell script.
Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
---
tools/perf/builtin-record.c | 6 ++++++
tools/perf/util/record.h | 2 ++
2 files changed, 8 insertions(+)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 0394e068dde8..fbe5069eb5d7 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -1749,6 +1749,9 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
perf_evlist__start_workload(rec->evlist);
}
+ if (evlist__initialize_ctlfd(rec->evlist, opts->ctl_fd, opts->ctl_fd_ack))
+ goto out_child;
+
if (opts->initial_delay) {
pr_info(EVLIST_DISABLED_MSG);
if (opts->initial_delay > 0) {
@@ -1895,6 +1898,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
record__synthesize_workload(rec, true);
out_child:
+ evlist__finalize_ctlfd(rec->evlist);
record__mmap_read_all(rec, true);
record__aio_mmap_read_sync(rec);
@@ -2380,6 +2384,8 @@ static struct record record = {
},
.mmap_flush = MMAP_FLUSH_DEFAULT,
.nr_threads_synthesize = 1,
+ .ctl_fd = -1,
+ .ctl_fd_ack = -1,
},
.tool = {
.sample = process_sample_event,
diff --git a/tools/perf/util/record.h b/tools/perf/util/record.h
index da138dcb4d34..4cb72a478af1 100644
--- a/tools/perf/util/record.h
+++ b/tools/perf/util/record.h
@@ -70,6 +70,8 @@ struct record_opts {
int mmap_flush;
unsigned int comp_level;
unsigned int nr_threads_synthesize;
+ int ctl_fd;
+ int ctl_fd_ack;
};
extern const char * const *record_usage;
--
2.24.1
next prev parent reply other threads:[~2020-06-01 16:05 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-01 15:46 [PATCH v5 00/13] perf: support enable and disable commands in stat and record modes Alexey Budankov
2020-06-01 15:51 ` [PATCH v5 01/13] tools/libperf: introduce static poll file descriptors Alexey Budankov
2020-06-01 15:51 ` [PATCH v5 02/13] perf evlist: introduce control " Alexey Budankov
2020-06-01 15:52 ` [PATCH v5 03/13] perf evlist: implement control command handling functions Alexey Budankov
2020-06-01 15:53 ` [PATCH v5 04/13] perf stat: factor out body of event handling loop for system wide Alexey Budankov
2020-06-01 15:55 ` [PATCH v5 05/13] perf stat: move target check to loop control statement Alexey Budankov
2020-06-01 15:55 ` [PATCH v5 06/13] perf stat: factor out body of event handling loop for launch case Alexey Budankov
2020-06-01 15:56 ` [PATCH v5 07/13] perf stat: factor out event handling loop into dispatch_events() Alexey Budankov
2020-06-01 15:58 ` [PATCH v5 08/13] perf stat: extend -D,--delay option with -1 value Alexey Budankov
2020-06-01 16:02 ` [PATCH v5 09/13] perf stat: implement control commands handling Alexey Budankov
2020-06-01 16:03 ` [PATCH v5 10/13] perf stat: introduce --ctl-fd[-ack] options Alexey Budankov
2020-06-01 16:03 ` [PATCH v5 11/13] perf record: extend -D,--delay option with -1 value Alexey Budankov
2020-06-01 16:04 ` [PATCH v5 12/13] perf record: implement control commands handling Alexey Budankov
2020-06-01 16:05 ` Alexey Budankov [this message]
2020-06-01 16:30 ` [PATCH v5 13/13] perf record: introduce --ctl-fd[-ack] options Adrian Hunter
2020-06-01 17:11 ` Alexey Budankov
2020-06-01 23:37 ` Andi Kleen
2020-06-02 8:32 ` Alexey Budankov
2020-06-02 9:12 ` Alexey Budankov
2020-06-02 13:43 ` Adrian Hunter
2020-06-05 10:51 ` Jiri Olsa
2020-06-05 13:15 ` Alexey Budankov
2020-06-05 13:57 ` Jiri Olsa
2020-06-05 14:47 ` Alexey Budankov
2020-06-05 15:23 ` Alexey Budankov
2020-06-08 8:04 ` Alexey Budankov
2020-06-08 8:45 ` Jiri Olsa
2020-06-06 8:27 ` Jiri Olsa
2020-06-01 16:53 ` [PATCH v5 00/13] perf: support enable and disable commands in stat and record modes Alexey Budankov
2020-06-01 20:21 ` Alexey Budankov
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