perf top tui: Wait till the first sample to refresh the screen.
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/top.h b/tools/perf/util/top.h
index e8d28e2..96d1cb7 100644
--- a/tools/perf/util/top.h
+++ b/tools/perf/util/top.h
@@ -35,6 +35,7 @@
*/
struct list_head active_symbols;
pthread_mutex_t active_symbols_lock;
+ pthread_cond_t active_symbols_cond;
u64 samples;
u64 kernel_samples, us_samples;
u64 exact_samples;