diff --git a/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters001/CollectionCounters001.java b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters001/CollectionCounters001.java
index aac6ab88246..7c089abb6ec 100644
--- a/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters001/CollectionCounters001.java
+++ b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters001/CollectionCounters001.java
@@ -35,6 +35,7 @@
  * @run main/othervm -XX:-UseGCOverheadLimit
  *      nsk.monitoring.GarbageCollectorMXBean.CollectionCounters.CollectionCounters001.CollectionCounters001
  *      -testMode=directly
+ *      -iterations=5
  */
 
 package nsk.monitoring.GarbageCollectorMXBean.CollectionCounters.CollectionCounters001;
@@ -79,30 +80,27 @@ public class CollectionCounters001 extends MonitoringTestBase implements RunPara
         private void runOne(ExecutionController stresser) {
                 updateCounters();
                 validate(false /* don't check gc count increases */);
-                int iteration = 0;
-                do {
-                    System.out.println("=========== stresser iter: " + (stresser.getIteration())
-                                    + " runOne iter: " + (++iteration) + " ===========");
-                    Algorithms.eatMemory(stresser);
-                    updateCounters();
-                    validate(true);
-                    System.gc();
-                    updateCounters();
-                    validate(true);
-                    memory.gc();
-                    updateCounters();
-                    validate(true);
-                } while (stresser.continueExecution());
+                Algorithms.eatMemory(stresser);
+                updateCounters();
+                validate(true);
+                System.gc();
+                updateCounters();
+                validate(true);
+                memory.gc();
+                updateCounters();
+                validate(true);
         }
 
         public void run() {
                 stresser = new Stresser(runParams.getStressOptions());
                 stresser.start(runParams.getIterations());
-                while (stresser.iteration()) {
+                do {
+                    System.out.println("=========== stresser iter: " + (stresser.getIteration()) + " ===========");
                     runOne(stresser);
-                }
+                } while (stresser.iteration());
         }
 
+
         private void validate(boolean gcCountMustIncrease) {
                 if (collectionCount < 0)
                     throw new TestFailure("collectionCount negative: " + collectionCount);
diff --git a/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters002/TestDescription.java b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters002/TestDescription.java
index c331991cd68..51abb4e7a0b 100644
--- a/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters002/TestDescription.java
+++ b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters002/TestDescription.java
@@ -36,5 +36,6 @@
  *      nsk.monitoring.GarbageCollectorMXBean.CollectionCounters.CollectionCounters001.CollectionCounters001
  *      -testMode=server
  *      -MBeanServer=default
+ *      -iterations=5
  */
 
diff --git a/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters003/TestDescription.java b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters003/TestDescription.java
index 024c8d363a5..20e266f50f1 100644
--- a/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters003/TestDescription.java
+++ b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters003/TestDescription.java
@@ -36,5 +36,6 @@
  *      nsk.monitoring.GarbageCollectorMXBean.CollectionCounters.CollectionCounters001.CollectionCounters001
  *      -testMode=server
  *      -MBeanServer=custom
+ *      -iterations=5
  */
 
diff --git a/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters004/TestDescription.java b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters004/TestDescription.java
index 09cde45ac4f..db5a04cede8 100644
--- a/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters004/TestDescription.java
+++ b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters004/TestDescription.java
@@ -36,5 +36,6 @@
  *      nsk.monitoring.GarbageCollectorMXBean.CollectionCounters.CollectionCounters001.CollectionCounters001
  *      -testMode=proxy
  *      -MBeanServer=default
+ *      -iterations=5
  */
 
diff --git a/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters005/TestDescription.java b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters005/TestDescription.java
index f70f680498b..68c50f026b7 100644
--- a/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters005/TestDescription.java
+++ b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters005/TestDescription.java
@@ -36,5 +36,6 @@
  *      nsk.monitoring.GarbageCollectorMXBean.CollectionCounters.CollectionCounters001.CollectionCounters001
  *      -testMode=proxy
  *      -MBeanServer=custom
+ *      -iterations=5
  */