From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Date: Mon, 31 Jul 2017 10:04:52 +0000 (+0530)
Subject: app/testeventdev: fix divide by zero in stats
X-Git-Tag: spdx-start~2274
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=04716352beb06ec1285710dd9cb28316cadec57d;p=dpdk.git

app/testeventdev: fix divide by zero in stats

pkts == 0 will result in divide by zero case.
Added a check to fix it.

Coverity issue: 158652
Fixes: 9d3aeb185eb4 ("app/testeventdev: launch perf lcores")
Cc: stable@dpdk.org

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
---

diff --git a/app/test-eventdev/test_perf_common.c b/app/test-eventdev/test_perf_common.c
index a5b768c68d..7b09299410 100644
--- a/app/test-eventdev/test_perf_common.c
+++ b/app/test-eventdev/test_perf_common.c
@@ -203,7 +203,7 @@ perf_launch_lcores(struct evt_test *test, struct evt_options *opt,
 			perf_cycles = new_cycles;
 			total_mpps += mpps;
 			++samples;
-			if (opt->fwd_latency) {
+			if (opt->fwd_latency && pkts > 0) {
 				printf(CLGRN"\r%.3f mpps avg %.3f mpps [avg fwd latency %.3f us] "CLNRM,
 					mpps, total_mpps/samples,
 					(float)(latency/pkts)/freq_mhz);