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# -*- coding: utf-8 -*-
#
# AWL simulator - Instruction timing measurement
#
# Copyright 2019 Michael Buesch <m@bues.ch>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
from __future__ import division, absolute_import, print_function, unicode_literals
#from awlsim.common.cython_support cimport * #@cy
from awlsim.common.compat import *
from awlsim.common.util import *
from awlsim.common.exceptions import *
from awlsim.common.monotonic import * #+cimport
#from awlsim.core.insnmeas cimport * #@cy
from awlsim.core.instructions.main import * #+cimport
from awlsim.core.instructions.types import * #+cimport
import time
__all__ = [
"InsnMeas",
]
class InsnMeasData(object): #+cdef
def __init__(self):
self.measured = False
self.measStart = 0.0
self.cumRt = 0.0
self.count = 0
self.minRt = 9999.0
self.maxRt = 0.0
@property
def avgRt(self):
if self.count == 0:
return 9999.0
return self.cumRt / float(self.count)
def subtractCal(self, calOffset):
new = InsnMeasData()
new.minRt = max(1.0e-9, self.minRt - calOffset)
new.maxRt = max(1.0e-9, self.maxRt - calOffset)
new.cumRt = max(1.0e-9, self.avgRt - calOffset)
new.count = 1
return new
def dump(self, name):
name += " " * (6 - len(name))
return "%s: min: %.3f us, max: %.3f us, avg: %.3f us" % (
name,
self.minRt * 1.0e6,
self.maxRt * 1.0e6,
self.avgRt * 1.0e6)
class InsnMeas(object): #+cdef
def __init__(self):
self.__perf_counter = time.perf_counter
self.__data = [None] * (AwlInsnTypes.NR_TYPES + 1)
for i in range(AwlInsnTypes.NR_TYPES + 1):
self.__data[i] = InsnMeasData()
self.__runOffsetCal()
def __runOffsetCal(self):
calTime = 3.0
printInfo("Running instruction measurement "
"offset calibration (takes %.1f s)..." % (calTime))
calEnd = monotonic_time() + calTime
while monotonic_time() < calEnd:
self.meas(True, AwlInsnTypes.NR_TYPES)
self.meas(False, AwlInsnTypes.NR_TYPES)
printInfo("Instruction measurement cal offset = %.3f us" % (
self.__calOffset * 1.0e6))
def meas(self, begin, insnType): #@nocy
#@cy cdef void meas(self, _Bool begin, uint32_t insnType):
#@cy cdef InsnMeasData measData
#@cy cdef double rt
#@cy cdef double now
now = self.__perf_counter()
measData = self.__data[insnType]
if begin:
measData.measStart = now
else:
rt = now - measData.measStart
measData.cumRt += rt
measData.count += 1
measData.minRt = min(measData.minRt, rt)
measData.maxRt = max(measData.maxRt, rt)
measData.measured = True
@property
def haveAnyMeasurements(self):
return any(self.__data[i].measured
for i in range(AwlInsnTypes.NR_TYPES))
@property
def __calOffset(self):
cal = self.__data[AwlInsnTypes.NR_TYPES]
calOffset = cal.avgRt
return calOffset
@property
def __allMeasData(self):
calOffset = self.__calOffset
for insnType in range(AwlInsnTypes.NR_TYPES):
measData = self.__data[insnType]
if measData.measured:
measData = measData.subtractCal(calOffset)
yield insnType, measData
def dump(self):
if not self.haveAnyMeasurements:
return
ret = []
ret.append("Instruction time measurements:")
for insnType, measData in self.__allMeasData:
name = AwlInsnTypes.type2name_german[insnType]
ret.append(measData.dump(name))
return "\n".join(ret) + "\n"
def dumpCSV(self):
if not self.haveAnyMeasurements:
return ""
ret = [ "instruction type;"
"instruction name;"
"minimum runtime (µs);"
"maximum runtime (µs);"
"average runtime (µs)" ]
for insnType, measData in self.__allMeasData:
name = AwlInsnTypes.type2name_german[insnType]
ret.append("%d; %s;%.3f;%.3f;%.3f" % (
insnType,
AwlInsnTypes.type2name_german[insnType],
measData.minRt * 1.0e6,
measData.maxRt * 1.0e6,
measData.avgRt * 1.0e6))
return "\n".join(ret) + "\n"
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