diff --git a/lib/coverage.c b/lib/coverage.c
index 43647344b..80316ef78 100644
--- a/lib/coverage.c
+++ b/lib/coverage.c
@@ -63,6 +63,7 @@ struct coverage_counter *coverage_counters[] = {
 
 static struct ovs_mutex coverage_mutex = OVS_MUTEX_INITIALIZER;
 
+DEFINE_STATIC_PER_THREAD_DATA(long long int, coverage_clear_time, LLONG_MIN);
 static long long int coverage_run_time = LLONG_MIN;
 
 /* Index counter used to compute the moving average array's index. */
@@ -258,17 +259,33 @@ coverage_read(struct svec *lines)
     free(totals);
 }
 
+/* Runs approximately every COVERAGE_CLEAR_INTERVAL amount of time to
+ * synchronize per-thread counters with global counters. Every thread maintains
+ * a separate timer to ensure all counters are periodically aggregated. */
 void
 coverage_clear(void)
 {
-    size_t i;
+    long long int now, *thread_time;
 
-    ovs_mutex_lock(&coverage_mutex);
-    for (i = 0; i < n_coverage_counters; i++) {
-        struct coverage_counter *c = coverage_counters[i];
-        c->total += c->count();
+    now = time_msec();
+    thread_time = coverage_clear_time_get();
+
+    /* Initialize the coverage_clear_time. */
+    if (*thread_time == LLONG_MIN) {
+        *thread_time = now + COVERAGE_CLEAR_INTERVAL;
+    }
+
+    if (now >= *thread_time) {
+        size_t i;
+
+        ovs_mutex_lock(&coverage_mutex);
+        for (i = 0; i < n_coverage_counters; i++) {
+            struct coverage_counter *c = coverage_counters[i];
+            c->total += c->count();
+        }
+        ovs_mutex_unlock(&coverage_mutex);
+        *thread_time = now + COVERAGE_CLEAR_INTERVAL;
     }
-    ovs_mutex_unlock(&coverage_mutex);
 }
 
 /* Runs approximately every COVERAGE_RUN_INTERVAL amount of time to update the
diff --git a/lib/coverage.h b/lib/coverage.h
index 163728eba..4e6c05064 100644
--- a/lib/coverage.h
+++ b/lib/coverage.h
@@ -36,6 +36,9 @@
 #define COVERAGE_RUN_INTERVAL    5000
 BUILD_ASSERT_DECL(60000 % COVERAGE_RUN_INTERVAL == 0);
 
+#define COVERAGE_CLEAR_INTERVAL  1000
+BUILD_ASSERT_DECL(COVERAGE_RUN_INTERVAL % COVERAGE_CLEAR_INTERVAL == 0);
+
 /* Defines the moving average array length. */
 #define MIN_AVG_LEN (60000/COVERAGE_RUN_INTERVAL)
 #define HR_AVG_LEN  60
diff --git a/tests/ofproto-dpif.at b/tests/ofproto-dpif.at
index 9a7c8ffdf..b78e15653 100644
--- a/tests/ofproto-dpif.at
+++ b/tests/ofproto-dpif.at
@@ -926,12 +926,6 @@ arp,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=80:88:88:88:88:88,dl_dst=ff:ff:f
 arp,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=80:88:88:88:88:88,dl_dst=ff:ff:ff:ff:ff:ff,arp_spa=192.168.128.1,arp_tpa=192.168.0.2,arp_op=2,arp_sha=50:54:00:00:00:05,arp_tha=40:44:44:44:44:41
 ])
 
-# Check that each of the packets actually passed through the slow-path.
-AT_CHECK([ovs-appctl coverage/show], [0], [stdout])
-AT_CHECK([sed -n 's/[[ 	]]\{2,\}/ /g
-s/^dpif_execute_with_help.*total: //p' stdout], [0], [3
-])
-
 OVS_VSWITCHD_STOP
 AT_CLEANUP