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Commit 8fa46753 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
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perf data: Add support for setting ordered_events queue size 



Adding support to limit the size of ordered_events queue, so we could
control allocation size of perf data files without proper finished round
events.

Reviewed-by: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jeremie Galarneau <jgalar@efficios.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Tom Zanussi <tzanussi@gmail.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1429372220-6406-5-git-send-email-jolsa@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 89e5fa88

tools/perf/util/data-convert-bt.c

+22 −0
Original line number Diff line number Diff line
@@ -74,6 +74,9 @@ struct convert { 


	u64			events_size;

	u64			events_count;



	/* Ordered events configured queue size. */

	u64			queue_size;

};



static int value_set(struct bt_ctf_field_type *type,
@@ -968,6 +971,18 @@ static int ctf_writer__flush_streams(struct ctf_writer *cw) 
	return ret;

}



static int convert__config(const char *var, const char *value, void *cb)

{

	struct convert *c = cb;



	if (!strcmp(var, "convert.queue-size")) {

		c->queue_size = perf_config_u64(var, value);

		return 0;

	}



	return perf_default_config(var, value, cb);

}



int bt_convert__perf2ctf(const char *input, const char *path, bool force)

{

	struct perf_session *session;
@@ -994,6 +1009,8 @@ int bt_convert__perf2ctf(const char *input, const char *path, bool force) 
	struct ctf_writer *cw = &c.writer;

	int err = -1;



	perf_config(convert__config, &c);



	/* CTF writer */

	if (ctf_writer__init(cw, path))

		return -1;
@@ -1003,6 +1020,11 @@ int bt_convert__perf2ctf(const char *input, const char *path, bool force) 
	if (!session)

		goto free_writer;



	if (c.queue_size) {

		ordered_events__set_alloc_size(&session->ordered_events,

					       c.queue_size);

	}



	/* CTF writer env/clock setup  */

	if (ctf_writer__setup_env(cw, session))

		goto free_session;