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From: <pbhagavatula@marvell.com>
To: <jerinj@marvell.com>
Cc: <dev@dpdk.org>, Pavan Nikhilesh <pbhagavatula@marvell.com>,
	<stable@dpdk.org>
Subject: [dpdk-stable] [dpdk-dev] [PATCH 1/2] app/test-eventdev: fix possible divide by zero
Date: Fri, 22 Nov 2019 00:52:38 +0530	[thread overview]
Message-ID: <20191121192240.12326-1-pbhagavatula@marvell.com> (raw)

From: Pavan Nikhilesh <pbhagavatula@marvell.com>

Fix possible divide by zero condition when calculating percentages.

Coverity Issue: 277205
Coverity Issue: 277234
Fixes: d008f20bce23 ("app/eventdev: add event timer adapter as a producer")
Cc: stable@dpdk.org

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
---
 app/test-eventdev/test_perf_common.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/app/test-eventdev/test_perf_common.c b/app/test-eventdev/test_perf_common.c
index e7cf75a7d..b3af4bfec 100644
--- a/app/test-eventdev/test_perf_common.c
+++ b/app/test-eventdev/test_perf_common.c
@@ -133,8 +133,9 @@ perf_event_timer_producer(void *arg)
 	fflush(stdout);
 	rte_delay_ms(1000);
 	printf("%s(): lcore %d Average event timer arm latency = %.3f us\n",
-			__func__, rte_lcore_id(), (float)(arm_latency / count) /
-			(rte_get_timer_hz() / 1000000));
+			__func__, rte_lcore_id(),
+			count ? (float)(arm_latency / count) /
+			(rte_get_timer_hz() / 1000000) : 0);
 	return 0;
 }

@@ -194,8 +195,9 @@ perf_event_timer_producer_burst(void *arg)
 	fflush(stdout);
 	rte_delay_ms(1000);
 	printf("%s(): lcore %d Average event timer arm latency = %.3f us\n",
-			__func__, rte_lcore_id(), (float)(arm_latency / count) /
-			(rte_get_timer_hz() / 1000000));
+			__func__, rte_lcore_id(),
+			count ? (float)(arm_latency / count) /
+			(rte_get_timer_hz() / 1000000) : 0);
 	return 0;
 }

--
2.17.1


             reply	other threads:[~2019-11-21 19:22 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-21 19:22 pbhagavatula [this message]
2019-11-21 19:22 ` [dpdk-stable] [dpdk-dev] [PATCH 2/2] app/test-evnetdev: fix unchecked return value pbhagavatula
2019-11-26  5:18   ` Jerin Jacob
2019-11-26  5:01 ` [dpdk-stable] [dpdk-dev] [PATCH 1/2] app/test-eventdev: fix possible divide by zero Jerin Jacob

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