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      1 #    Copyright 2015-2017 ARM Limited
      2 #
      3 # Licensed under the Apache License, Version 2.0 (the "License");
      4 # you may not use this file except in compliance with the License.
      5 # You may obtain a copy of the License at
      6 #
      7 #     http://www.apache.org/licenses/LICENSE-2.0
      8 #
      9 # Unless required by applicable law or agreed to in writing, software
     10 # distributed under the License is distributed on an "AS IS" BASIS,
     11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 # See the License for the specific language governing permissions and
     13 # limitations under the License.
     14 #
     15 
     16 
     17 """Process the output of the devfreq_cooling devices in the current
     18 directory's trace.dat"""
     19 
     20 import pandas as pd
     21 
     22 from trappy.base import Base
     23 from trappy.dynamic import register_ftrace_parser
     24 
     25 
     26 class DevfreqInPower(Base):
     27     """Process de devfreq cooling device data regarding get_power in an
     28 FTrace dump"""
     29 
     30     name = "devfreq_in_power"
     31     """The name of the :mod:`pandas.DataFrame` member that will be created in a
     32     :mod:`trappy.ftrace.FTrace` object"""
     33 
     34     unique_word="thermal_power_devfreq_get_power:"
     35     """The event name in the trace"""
     36 
     37     def get_all_freqs(self):
     38         """Return a :mod:`pandas.DataFrame` with
     39         the frequencies for the devfreq device
     40 
     41         The format should be the same as the one for
     42         :code:`CpuInPower().get_all_freqs()`.
     43 
     44         .. note:: Frequencies are in MHz.
     45         """
     46 
     47         return pd.DataFrame(self.data_frame["freq"] / 1000000)
     48 
     49 register_ftrace_parser(DevfreqInPower, "thermal")
     50 
     51 
     52 class DevfreqOutPower(Base):
     53     """Process de devfreq cooling device data regarding power2state in an
     54 ftrace dump"""
     55 
     56     name = "devfreq_out_power"
     57     """The name of the :mod:`pandas.DataFrame` member that will be created in a
     58     :mod:`trappy.ftrace.FTrace` object"""
     59 
     60     unique_word="thermal_power_devfreq_limit:"
     61     """The event name in the trace"""
     62 
     63     def get_all_freqs(self):
     64         """Return a :mod:`pandas.DataFrame` with
     65         the output frequencies for the devfreq device
     66 
     67         The format should be the same as the one for
     68         :code:`CpuOutPower().get_all_freqs()`.
     69 
     70         .. note:: Frequencies are in MHz.
     71         """
     72 
     73         return pd.DataFrame(self.data_frame["freq"] / 1000000)
     74 
     75 register_ftrace_parser(DevfreqOutPower, "thermal")
     76