[dpdk-dev] [PATCH v2 2/5] app/testpmd: print fractional part in CPU cycles

[Dharmik Thakkar]

Change printing of CPU cycles/packet to include fractional part for
accurateness.

Example:

Without patch:
CPU cycles/packet=14
(total cycles=4899533541 / total RX packets=343031966)

With patch:
CPU cycles/packet=14.28
(total cycles=4899533541 / total RX packets=343031966)

Signed-off-by: Dharmik Thakkar <dharmik.thakkar at arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli at arm.com>
Reviewed-by: Phil Yang <phil.yang at arm.com>
---
v2:
 - Change typecast to (double) fwd_cycles / total_recv

---
 app/test-pmd/testpmd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 806abb805879..a7ac6c66ce1c 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -1955,10 +1955,10 @@ fwd_stats_display(void)
 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
 #define CYC_PER_MHZ 1E6
 	if (total_recv > 0)
-		printf("\n  CPU cycles/packet=%u (total cycles="
+		printf("\n  CPU cycles/packet=%.2F (total cycles="
 		       "%"PRIu64" / total RX packets=%"PRIu64") at %"PRIu64
 		       " MHz Clock\n",
-		       (unsigned int)(fwd_cycles / total_recv),
+		       (double) fwd_cycles / total_recv,
 		       fwd_cycles, total_recv,
 		       (uint64_t)(rte_get_tsc_hz() / CYC_PER_MHZ));
 #endif
-- 
2.20.1