Index: bin/jmeter.properties
===================================================================
--- bin/jmeter.properties	(revision 1759038)
+++ bin/jmeter.properties	(working copy)
@@ -1242,3 +1242,7 @@
 
 # Number of iterations to use to validate a Thread Group
 #testplan_validation.number_iterations=1
+
+# Timer factor that can be applied to Timer except for Constant ThroughputTimer and SynchronizingTimer
+# as long as any timer return false in  org.apache.jmeter.timers.Timer#isModifiable
+#timer.factor=1.0
\ No newline at end of file
Index: src/components/org/apache/jmeter/timers/BSFTimer.java
===================================================================
--- src/components/org/apache/jmeter/timers/BSFTimer.java	(revision 1754657)
+++ src/components/org/apache/jmeter/timers/BSFTimer.java	(working copy)
@@ -52,4 +52,9 @@
         }
         return delay;
     }
+    
+    @Override
+    public boolean isModifiable() {
+        return true;
+    }
 }
Index: src/components/org/apache/jmeter/timers/BeanShellTimer.java
===================================================================
--- src/components/org/apache/jmeter/timers/BeanShellTimer.java	(revision 1754657)
+++ src/components/org/apache/jmeter/timers/BeanShellTimer.java	(working copy)
@@ -62,4 +62,9 @@
             return 0;
         }
     }
+
+    @Override
+    public boolean isModifiable() {
+        return true;
+    }
 }
Index: src/components/org/apache/jmeter/timers/ConstantThroughputTimer.java
===================================================================
--- src/components/org/apache/jmeter/timers/ConstantThroughputTimer.java	(revision 1754657)
+++ src/components/org/apache/jmeter/timers/ConstantThroughputTimer.java	(working copy)
@@ -217,8 +217,8 @@
         //Synchronize on the info object's MUTEX to ensure
         //Multiple threads don't update the scheduled time simultaneously
         synchronized (info.MUTEX) {
-            final long nextRequstTime = info.lastScheduledTime + milliSecPerRequest;
-            info.lastScheduledTime = Math.max(now, nextRequstTime);
+            final long nextRequestTime = info.lastScheduledTime + milliSecPerRequest;
+            info.lastScheduledTime = Math.max(now, nextRequestTime);
             calculatedDelay = info.lastScheduledTime - now;
         }
 
@@ -329,5 +329,9 @@
     void setMode(Mode newMode) {
         mode = newMode;
     }
-
+    
+    @Override
+    public boolean isModifiable() {
+        return false;
+    }
 }
Index: src/components/org/apache/jmeter/timers/ConstantTimer.java
===================================================================
--- src/components/org/apache/jmeter/timers/ConstantTimer.java	(revision 1754657)
+++ src/components/org/apache/jmeter/timers/ConstantTimer.java	(working copy)
@@ -109,4 +109,9 @@
         delay = getPropertyAsLong(DELAY);
 
     }
+    
+    @Override
+    public boolean isModifiable() {
+        return true;
+    }
 }
Index: src/components/org/apache/jmeter/timers/JSR223Timer.java
===================================================================
--- src/components/org/apache/jmeter/timers/JSR223Timer.java	(revision 1754657)
+++ src/components/org/apache/jmeter/timers/JSR223Timer.java	(working copy)
@@ -50,4 +50,9 @@
         }
         return delay;
     }
+
+    @Override
+    public boolean isModifiable() {
+        return true;
+    }
 }
Index: src/components/org/apache/jmeter/timers/SyncTimer.java
===================================================================
--- src/components/org/apache/jmeter/timers/SyncTimer.java	(revision 1754657)
+++ src/components/org/apache/jmeter/timers/SyncTimer.java	(working copy)
@@ -275,4 +275,9 @@
     public void setTimeoutInMs(long timeoutInMs) {
         this.timeoutInMs = timeoutInMs;
     }
+
+    @Override
+    public boolean isModifiable() {
+        return false;
+    }
 }
Index: src/components/org/apache/jmeter/timers/UniformRandomTimer.java
===================================================================
--- src/components/org/apache/jmeter/timers/UniformRandomTimer.java	(revision 1754657)
+++ src/components/org/apache/jmeter/timers/UniformRandomTimer.java	(working copy)
@@ -20,7 +20,7 @@
 
 import java.io.Serializable;
 
-import org.apache.jmeter.util.JMeterUtils;
+import org.apache.commons.lang3.builder.ToStringBuilder;
 
 /**
  * This class implements those methods needed by RandomTimer to be instantiable
@@ -38,7 +38,7 @@
 
     @Override
     public String toString() {
-        return JMeterUtils.getResString("uniform_timer_memo"); //$NON-NLS-1$
+        //return JMeterUtils.getResString("uniform_timer_memo"); //$NON-NLS-1$
+        return ToStringBuilder.reflectionToString(this);
     }
-
 }
Index: src/core/org/apache/jmeter/threads/JMeterThread.java
===================================================================
--- src/core/org/apache/jmeter/threads/JMeterThread.java	(revision 1758348)
+++ src/core/org/apache/jmeter/threads/JMeterThread.java	(working copy)
@@ -75,6 +75,8 @@
     private static final int RAMPUP_GRANULARITY =
             JMeterUtils.getPropDefault("jmeterthread.rampup.granularity", 1000); // $NON-NLS-1$
 
+    private static final double TIMER_FACTOR = JMeterUtils.getPropDefault("timer.factor", 1.0d);
+
     private final Controller threadGroupLoopController;
 
     private final HashTree testTree;
@@ -795,7 +797,17 @@
         long totalDelay = 0;
         for (Timer timer : timers) {
             TestBeanHelper.prepare((TestElement) timer);
-            totalDelay += timer.delay();
+            long delay = timer.delay();
+            if(TIMER_FACTOR != 1.0d && timer.isModifiable()) {
+                if(log.isDebugEnabled()) {
+                    log.debug("Applying TIMER_FACTOR:"
+                            +TIMER_FACTOR + " on timer:"
+                            +((TestElement)timer).getName()
+                            + " for thread:"+getThreadName());
+                }
+                delay = Math.round(delay * TIMER_FACTOR);
+            }
+            totalDelay += delay;
         }
         if (totalDelay > 0) {
             try {
Index: src/core/org/apache/jmeter/timers/Timer.java
===================================================================
--- src/core/org/apache/jmeter/timers/Timer.java	(revision 1754657)
+++ src/core/org/apache/jmeter/timers/Timer.java	(working copy)
@@ -33,4 +33,9 @@
      * @return the computed delay value.
      */
     long delay();
+
+    /**
+     * @return true if factor can be applied to it
+     */
+    boolean isModifiable();
 }
Index: src/core/org/apache/jmeter/util/JMeterUtils.java
===================================================================
--- src/core/org/apache/jmeter/util/JMeterUtils.java	(revision 1756527)
+++ src/core/org/apache/jmeter/util/JMeterUtils.java	(working copy)
@@ -856,6 +856,26 @@
         }
         return ans;
     }
+    
+    /**
+     * Get a double value with default if not present.
+     *
+     * @param propName
+     *            the name of the property.
+     * @param defaultVal
+     *            the default value.
+     * @return The PropDefault value
+     */
+    public static double getPropDefault(String propName, double defaultVal) {
+        double ans;
+        try {
+            ans = Double.parseDouble(appProperties.getProperty(propName, Double.toString(defaultVal)).trim());
+        } catch (Exception e) {
+            log.warn("Exception '"+ e.getMessage()+ "' occurred when fetching double property:'"+propName+"', defaulting to:"+defaultVal);
+            ans = defaultVal;
+        }
+        return ans;
+    }
 
     /**
      * Get a String value with default if not present.