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perf tools: Add report.queue-size config file option

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Adding report.queue-size config file option to setup the maximum
allocation size for session's struct ordered_events object.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-lm42mbpu0cwljpyy8vw5y26n@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2014-06-05 11:00:20 +02:00 committed by Arnaldo Carvalho de Melo
parent 94c0655fc1
commit 94786b67b5
2 changed files with 18 additions and 1 deletions
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13
tools/perf/builtin-report.c
View File

@ -58,17 +58,19 @@ struct report {
const char *symbol_filter_str;
float min_percent;
u64 nr_entries;
u64 queue_size;
DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
};
static int report__config(const char *var, const char *value, void *cb)
{
struct report *rep = cb;
if (!strcmp(var, "report.group")) {
symbol_conf.event_group = perf_config_bool(var, value);
return 0;
}
if (!strcmp(var, "report.percent-limit")) {
struct report *rep = cb;
rep->min_percent = strtof(value, NULL);
return 0;
}
@ -76,6 +78,10 @@ static int report__config(const char *var, const char *value, void *cb)
symbol_conf.cumulate_callchain = perf_config_bool(var, value);
return 0;
}
if (!strcmp(var, "report.queue-size")) {
rep->queue_size = perf_config_u64(var, value);
return 0;
}
return perf_default_config(var, value, cb);
}
@ -714,6 +720,11 @@ repeat:
if (session == NULL)
return -ENOMEM;
if (report.queue_size) {
ordered_events__set_alloc_size(&session->ordered_events,
report.queue_size);
}
report.session = session;
has_br_stack = perf_header__has_feat(&session->header,

6
tools/perf/util/ordered-events.h
View File

@ -40,4 +40,10 @@ int ordered_events__flush(struct perf_session *s, struct perf_tool *tool,
enum oe_flush how);
void ordered_events__init(struct ordered_events *oe);
void ordered_events__free(struct ordered_events *oe);
static inline
void ordered_events__set_alloc_size(struct ordered_events *oe, u64 size)
{
oe->max_alloc_size = size;
}
#endif /* __ORDERED_EVENTS_H */