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Add microsecs/op display to pg_test_fsync utility

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e.g. fsync  2103.613 ops/sec (   475 microsecs/op)

Peter Geoghegan
This commit is contained in:
Simon Riggs
2012-10-09 08:15:23 +01:00
parent bc433317ae
commit 82e429794b
2 changed files with 12 additions and 7 deletions
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6
contrib/pg_test_fsync/pg_test_fsync.c
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@ -25,7 +25,8 @@
#define LABEL_FORMAT " %-32s"
#define NA_FORMAT "%18s"
#define OPS_FORMAT "%9.3f ops/sec"
#define OPS_FORMAT "%9.3f ops/sec (%6.f microsecs/op)"
#define USECS_SEC 1000000
/* These are macros to avoid timing the function call overhead. */
#ifndef WIN32
@ -568,8 +569,9 @@ print_elapse(struct timeval start_t, struct timeval stop_t, int ops)
double total_time = (stop_t.tv_sec - start_t.tv_sec) +
(stop_t.tv_usec - start_t.tv_usec) * 0.000001;
double per_second = ops / total_time;
double avg_op_time_us = (total_time / ops) * USECS_SEC;
printf(OPS_FORMAT "\n", per_second);
printf(OPS_FORMAT "\n", per_second, avg_op_time_us);
}
#ifndef WIN32