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# Copyright 2015-2015 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.run import Run
from trappy.plot_utils import normalize_title, pre_plot_setup, post_plot_setup
class PIDController(Base):
"""Process the power allocator PID controller data in a ftrace dump"""
name = "pid_controller"
pivot = "thermal_zone_id"
def __init__(self):
super(PIDController, self).__init__(
unique_word="thermal_power_allocator_pid",
)
def plot_controller(self, title="", width=None, height=None, ax=None):
"""Plot a summary of the controller data"""
title = normalize_title("PID", title)
if not ax:
ax = pre_plot_setup(width, height)
self.data_frame[["output", "p", "i", "d"]].plot(ax=ax)
post_plot_setup(ax, title=title)
Run.register_class(PIDController, "thermal")
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