skpbench: add debug prints for thermal trip points

tools/skpbench/_hardware.py

 # Copyright 2016 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import time
 
 class Hardware:
   """Locks down and monitors hardware for benchmarking.
 
   This is a common base for classes that can control the specific hardware
   we are running on. Its purpose is to lock the hardware into a constant
   benchmarking mode for the duration of a 'with' block. e.g.:
 
     with hardware:
       run_benchmark()
 
   While benchmarking, the caller must call sanity_check() frequently to verify
   the hardware state has not changed.
 
   """
 
   def __init__(self):
-    self.kick_in_time = 0
+    self.warmup_time = 0
 
   def __enter__(self):
     return self
 
   def __exit__(self, exception_type, exception_value, traceback):
     pass
 
   def sanity_check(self):
     """Raises a HardwareException if any hardware state is not as expected."""
     pass
 
+  def print_debug_diagnostics(self):
+    """Prints any info that may help improve or debug hardware monitoring."""
+    pass
+
   def sleep(self, sleeptime):
     """Puts the hardware into a resting state for a fixed amount of time."""
     time.sleep(sleeptime)
 
 
 class HardwareException(Exception):
   """Gets thrown when certain hardware state is not what we expect.
 
   Generally this happens because of thermal conditions or other variables beyond
   our control, and the appropriate course of action is to take a short nap
@@ skipping 34 matching lines @@
 
   @staticmethod
   def check_all(expectations, stringvalues):
     if len(stringvalues) != len(expectations):
       raise Exception("unexpected reading from hardware gauges "
                       "(expected %i values):\n%s" %
                       (len(expectations), '\n'.join(stringvalues)))
 
     for value, expected in zip(stringvalues, expectations):
       expected.check(value)