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authorJiri Olsa <jolsa@kernel.org>2021-02-08 21:08:56 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-02-11 10:02:54 -0300
commit23c5831e2e040f7a044743a2e6e060426d579d7f (patch)
tree298d9276c38ecb843af8b1c71866c938b1e24c0a /tools/perf/builtin-daemon.c
parent2d6914cd59ffb6716154f81f1c23145747887514 (diff)
perf daemon: Add 'stop' command
Add 'perf daemon stop' command to stop daemon process and all running sessions. Example: # cat ~/.perfconfig [daemon] base=/opt/perfdata [session-cycles] run = -m 10M -e cycles --overwrite --switch-output -a [session-sched] run = -m 20M -e sched:* --overwrite --switch-output -a Start the daemon: # perf daemon start Stop the daemon # perf daemon stop Daemon is not running, nothing to connect to: # perf daemon connect error: Connection refused Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Budankov <abudankov@huawei.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: https://lore.kernel.org/r/20210208200908.1019149-13-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-daemon.c')
-rw-r--r--tools/perf/builtin-daemon.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/tools/perf/builtin-daemon.c b/tools/perf/builtin-daemon.c
index a2c53d35ec69..324ce43e8ab1 100644
--- a/tools/perf/builtin-daemon.c
+++ b/tools/perf/builtin-daemon.c
@@ -532,6 +532,7 @@ static int setup_server_socket(struct daemon *daemon)
enum {
CMD_LIST = 0,
CMD_SIGNAL = 1,
+ CMD_STOP = 2,
CMD_MAX,
};
@@ -665,6 +666,11 @@ static int handle_server_socket(struct daemon *daemon, int sock_fd)
case CMD_SIGNAL:
ret = cmd_session_kill(daemon, &cmd, out);
break;
+ case CMD_STOP:
+ done = 1;
+ ret = 0;
+ pr_debug("perf daemon is exciting\n");
+ break;
default:
break;
}
@@ -1151,6 +1157,27 @@ static int __cmd_signal(struct daemon *daemon, struct option parent_options[],
return send_cmd(daemon, &cmd);
}
+static int __cmd_stop(struct daemon *daemon, struct option parent_options[],
+ int argc, const char **argv)
+{
+ struct option start_options[] = {
+ OPT_PARENT(parent_options),
+ OPT_END()
+ };
+ union cmd cmd = { .cmd = CMD_STOP, };
+
+ argc = parse_options(argc, argv, start_options, daemon_usage, 0);
+ if (argc)
+ usage_with_options(daemon_usage, start_options);
+
+ if (setup_config(daemon)) {
+ pr_err("failed: config not found\n");
+ return -1;
+ }
+
+ return send_cmd(daemon, &cmd);
+}
+
int cmd_daemon(int argc, const char **argv)
{
struct option daemon_options[] = {
@@ -1175,6 +1202,8 @@ int cmd_daemon(int argc, const char **argv)
return __cmd_start(&__daemon, daemon_options, argc, argv);
if (!strcmp(argv[0], "signal"))
return __cmd_signal(&__daemon, daemon_options, argc, argv);
+ else if (!strcmp(argv[0], "stop"))
+ return __cmd_stop(&__daemon, daemon_options, argc, argv);
pr_err("failed: unknown command '%s'\n", argv[0]);
return -1;