--- old/test/hotspot/jtreg/serviceability/jvmti/HeapMonitor/MyPackage/HeapMonitorStackDepthTest.java	2018-02-12 20:05:15.603725851 -0800
+++ new/test/hotspot/jtreg/serviceability/jvmti/HeapMonitor/MyPackage/HeapMonitorStackDepthTest.java	2018-02-12 20:05:15.363726775 -0800
@@ -53,8 +53,8 @@
       int depth = depths[depthIdx];
 
       HeapMonitor.enableSampling();
-      // Do the runner 10 times to ensure the stack is really sampled.
-      runner(10, depth);
+      // Do the runner 3 times to ensure the stack is really sampled.
+      runner(3, depth);
 
       // baseDepth represents the helper method depth: main, runner, HeapMonitor.allocate,
       // and HeapMonitor.actuallyAllocate.
@@ -65,7 +65,7 @@
 
       // 3% error should be close enough.
       if (errorPercentage > 3) {
-        throw new RuntimeException("Stack depth average over 5% for depth " + depth + " : " + averageDepth + " , error: " + errorPercentage);
+        throw new RuntimeException("Stack depth average over 3% for depth " + depth + " : " + averageDepth + " , error: " + errorPercentage);
       }
 
       HeapMonitor.disableSampling();
@@ -75,8 +75,8 @@
     // Last test is 1024, which is the current maximum.
     HeapMonitor.enableSampling();
     final int maximumDepth = 1024;
-    // Do the runner 10 times to ensure the stack is really sampled.
-    runner(10, maximumDepth);
+    // Do the runner 3 times to ensure the stack is really sampled.
+    runner(3, maximumDepth);
     // Because of the extra frames, we should be at (maximumDepth + a few frames). Due to the
     // maximum depth allowed, we hit it and so should still be at an average of 1024.
     double averageDepth = getAverageStackDepth();
@@ -85,7 +85,7 @@
 
     // 3% error should be close enough.
     if (errorPercentage > 3) {
-      throw new RuntimeException("Stack depth average over 5% for depth 1024 : " + averageDepth + " , error: " + errorPercentage);
+      throw new RuntimeException("Stack depth average over 3% for depth 1024 : " + averageDepth + " , error: " + errorPercentage);
     }
   }
 }