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test/nvme: cleanup overhead output

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Do not print out the raw TSC totals, and convert
the TSC values to nanoseconds so the user does not
have to do that manually.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I74d27bcd25522de2d5e34e1b0c609eb184e1b32e

Reviewed-on: https://review.gerrithub.io/365266
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Jim Harris 2017-06-13 10:54:40 -07:00
parent ef3d6d9824
commit 7d93868a5e
1 changed files with 9 additions and 9 deletions
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18
test/lib/nvme/overhead/overhead.c
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@ -437,8 +437,6 @@ work_fn(void)
{
uint64_t tsc_end;
printf("Starting work_fn\n");
/* Allocate a queue pair for each namespace. */
if (init_ns_worker_ctx() != 0) {
printf("ERROR: init_ns_worker_ctx() failed\n");
@ -504,14 +502,16 @@ print_bucket(void *ctx, uint64_t start, uint64_t end, uint64_t count,
static void
print_stats(void)
{
printf("g_tsc_submit = %ju\n", g_tsc_submit);
printf("g_tsc_complete = %ju\n", g_tsc_complete);
printf("g_io_completed = %ju\n", g_io_completed);
double divisor = (double)g_tsc_rate / (1000 * 1000 * 1000);
printf("submit avg, min, max = %8.1f, %ju, %ju\n",
(float)g_tsc_submit / g_io_completed, g_tsc_submit_min, g_tsc_submit_max);
printf("complete avg, min, max = %8.1f, %ju, %ju\n",
(float)g_tsc_complete / g_io_completed, g_tsc_complete_min, g_tsc_complete_max);
printf("submit (in ns) avg, min, max = %8.1f, %8.1f, %8.1f\n",
(double)g_tsc_submit / g_io_completed / divisor,
(double)g_tsc_submit_min / divisor,
(double)g_tsc_submit_max / divisor);
printf("complete (in ns) avg, min, max = %8.1f, %8.1f, %8.1f\n",
(double)g_tsc_complete / g_io_completed / divisor,
(double)g_tsc_complete_min / divisor,
(double)g_tsc_complete_max / divisor);
if (!g_enable_histogram) {
return;