cpu_relax();
}
+static int verbose_mode;
+
+#define printf_verbose(fmt, args...) \
+ do { \
+ if (verbose_mode) \
+ printf(fmt, args); \
+ } while (0)
+
/*
* returns 0 if test should end.
*/
{
unsigned long tidx = (unsigned long)data;
- printf("thread_begin %s, thread id : %lx, tid %lu\n",
+ printf_verbose("thread_begin %s, thread id : %lx, tid %lu\n",
"reader", pthread_self(), (unsigned long)gettid());
while (!test_go)
{
unsigned long wtidx = (unsigned long)data;
- printf("thread_begin %s, thread id : %lx, tid %lu\n",
+ printf_verbose("thread_begin %s, thread id : %lx, tid %lu\n",
"writer", pthread_self(), (unsigned long)gettid());
while (!test_go)
usleep(wdelay);
}
- printf("thread_end %s, thread id : %lx, tid %lu\n",
+ printf_verbose("thread_end %s, thread id : %lx, tid %lu\n",
"writer", pthread_self(), (unsigned long)gettid());
tot_nr_writes[wtidx] = nr_writes;
return ((void*)2);
#endif
printf(" [-d delay] (writer period (us))");
printf(" [-c duration] (reader C.S. duration (in loops))");
+ printf(" [-v] (verbose output)");
printf(" [-a cpu#] [-a cpu#]... (affinity)");
printf("\n");
}
a = atoi(argv[++i]);
CPU_SET(a, &affinity);
use_affinity = 1;
- printf("Adding CPU %d affinity\n", a);
+ printf_verbose("Adding CPU %d affinity\n", a);
break;
case 'c':
if (argc < i + 2) {
}
wdelay = atoi(argv[++i]);
break;
+ case 'v':
+ verbose_mode = 1;
+ break;
}
}
- printf("running test for %lu seconds, %u readers, %u writers.\n",
+ printf_verbose("running test for %lu seconds, %u readers, %u writers.\n",
duration, nr_readers, nr_writers);
- printf("Writer delay : %u us.\n", wdelay);
- printf("Reader duration : %lu loops.\n", rduration);
- printf("thread %-6s, thread id : %lx, tid %lu\n",
+ printf_verbose("Writer delay : %u us.\n", wdelay);
+ printf_verbose("Reader duration : %lu loops.\n", rduration);
+ printf_verbose("thread %-6s, thread id : %lx, tid %lu\n",
"main", pthread_self(), (unsigned long)gettid());
if (use_affinity
exit(1);
tot_writes += tot_nr_writes[i];
}
-
- printf("total number of reads : %llu, writes %llu\n", tot_reads,
+
+ printf_verbose("total number of reads : %llu, writes %llu\n", tot_reads,
tot_writes);
+ printf("SUMMARY %s testdur %lu nr_readers %u rdur %lu nr_writers %u "
+ "wdelay %u nr_reads %llu nr_writes %llu nr_ops %llu\n",
+ argv[0], duration, nr_readers, rduration,
+ nr_writers, wdelay, tot_reads, tot_writes,
+ tot_reads + tot_writes);
+
free(tid_reader);
free(tid_writer);
free(count_reader);