add leeway for frequency scaling test

1 files changed, 7 insertions, 4 deletions

diff --git a/bin/frequency_governors_test.py b/bin/frequency_governors_test.py
index fb652f5..d6a1e08 100755
--- a/bin/frequency_governors_test.py
+++ b/bin/frequency_governors_test.py
@@ -542,17 +542,20 @@ class CPUScalingTest(object):
 if not self.setGovernor(governor):
 success = False
 
- # Verify the current speed is the same as scaling_max_freq
+ # let's run a warm-up task so the CPU can raise its freq
+ performanceTestTime = self.runLoadTest()
+ # Verify the current speed is close to scaling_max_freq
 maximumFrequency = self.getParameter("scaling_max_freq")
 currentFrequency = self.getParameter("scaling_cur_freq")
 if (
 not maximumFrequency or
 not currentFrequency or
- (maximumFrequency != currentFrequency)
+ (float(currentFrequency) < 0.99 * float(maximumFrequency))
 ):
 logging.error(
- "Current cpu frequency of %s is not set to the maximum "
- "value of %s" % (currentFrequency, maximumFrequency))
+ "Current cpu frequency of %s is not close enough to the "
+ "maximum value of %s" % (
+ currentFrequency, maximumFrequency))
 success = False
 
 # Repeat work load test