diff --git a/devlib/bin/scripts/shutils.in b/devlib/bin/scripts/shutils.in
index 799461f..b95ad2e 100755
--- a/devlib/bin/scripts/shutils.in
+++ b/devlib/bin/scripts/shutils.in
@@ -46,6 +46,18 @@ cpufreq_trace_all_frequencies() {
 	done
 }
 
+################################################################################
+# CPUIdle Utility Functions
+################################################################################
+
+cpuidle_wake_all_cpus() {
+	CPU_PATHS=/sys/devices/system/cpu/cpu[0-9]*
+	MASK=0x1; for F in $CPU_PATHS; do
+		$BUSYBOX taskset $MASK true
+		MASK=$($BUSYBOX printf '0x%x' $((MASK * 2)))
+	done
+}
+
 ################################################################################
 # FTrace Utility Functions
 ################################################################################
@@ -185,6 +197,9 @@ cpufreq_get_all_governors)
 cpufreq_trace_all_frequencies)
     cpufreq_trace_all_frequencies $*
     ;;
+cpuidle_wake_all_cpus)
+    cpuidle_wake_all_cpus $*
+    ;;
 cgroups_get_attributes)
 	cgroups_get_attributes $*
 	;;
diff --git a/devlib/module/cpuidle.py b/devlib/module/cpuidle.py
index 1ac06ff..3f1938d 100644
--- a/devlib/module/cpuidle.py
+++ b/devlib/module/cpuidle.py
@@ -152,3 +152,9 @@ class Cpuidle(Module):
         for state in self.get_states(cpu):
             state.disable()
 
+    def perturb_cpus(self):
+        """
+        Momentarily wake each CPU. Ensures cpu_idle events in trace file.
+        """
+        output = self.target._execute_util('cpuidle_wake_all_cpus')
+        print(output)
diff --git a/devlib/trace/ftrace.py b/devlib/trace/ftrace.py
index a40a5f4..7affed5 100644
--- a/devlib/trace/ftrace.py
+++ b/devlib/trace/ftrace.py
@@ -170,6 +170,9 @@ class FtraceCollector(TraceCollector):
         if 'cpufreq' in self.target.modules:
             self.logger.debug('Trace CPUFreq frequencies')
             self.target.cpufreq.trace_frequencies()
+        if 'cpuidle' in self.target.modules:
+            self.logger.debug('Trace CPUIdle states')
+            self.target.cpuidle.perturb_cpus()
         # Enable kernel function profiling
         if self.functions:
             self.target.execute('echo nop > {}'.format(self.current_tracer_file),