| # Copyright 2015-2017 ARM Limited |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| """Process the output of the power allocator's PID controller in the |
| current directory's trace.dat""" |
| |
| from trappy.base import Base |
| from trappy.dynamic import register_ftrace_parser |
| |
| class PIDController(Base): |
| """Process the power allocator PID controller data in a FTrace dump""" |
| |
| name = "pid_controller" |
| """The name of the :mod:`pandas.DataFrame` member that will be created in a |
| :mod:`trappy.ftrace.FTrace` object""" |
| |
| pivot = "thermal_zone_id" |
| """The Pivot along which the data is orthogonal""" |
| |
| unique_word="thermal_power_allocator_pid" |
| """The event name in the trace""" |
| |
| def plot_controller(self, title="", width=None, height=None, ax=None): |
| """Plot a summary of the controller data |
| |
| :param ax: Axis instance |
| :type ax: :mod:`matplotlib.Axis` |
| |
| :param title: The title of the plot |
| :type title: str |
| |
| :param width: The width of the plot |
| :type width: int |
| |
| :param height: The height of the plot |
| :type int: int |
| """ |
| import trappy.plot_utils |
| |
| title = trappy.plot_utils.normalize_title("PID", title) |
| |
| if not ax: |
| ax = trappy.plot_utils.pre_plot_setup(width, height) |
| |
| self.data_frame[["output", "p", "i", "d"]].plot(ax=ax) |
| trappy.plot_utils.post_plot_setup(ax, title=title) |
| |
| register_ftrace_parser(PIDController, "thermal") |