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#!/usr/bin/python
"""Process the output of the power allocator's PID controller in the
current directory's trace.dat"""
from base import Base
from 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"""
def __init__(self, path=None):
super(PIDController, self).__init__(
basepath=path,
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)
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