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# pyOCD debugger
# Copyright (c) 2015-2019 Arm Limited
# Copyright (c) 2021 Chris Reed
# SPDX-License-Identifier: Apache-2.0
#
# 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.
from __future__ import print_function
import os
import sys
from time import (sleep, time)
from random import randrange
import traceback
import argparse
import logging
from pyocd.core.helpers import ConnectHelper
from pyocd.probe.pydapaccess import DAPAccess
from pyocd.core.memory_map import MemoryType
from pyocd.utility import conversion
from test_util import (
Test,
TestResult,
get_session_options,
get_target_test_params
)
_1MB = (1 * 1024 * 1024)
class SpeedTestResult(TestResult):
def __init__(self):
super(SpeedTestResult, self).__init__(None, None, None)
self.name = "speed"
class SpeedTest(Test):
def __init__(self):
super(SpeedTest, self).__init__("Speed Test", speed_test)
def print_perf_info(self, result_list, output_file=None):
format_str = "{:<15}{:>18}{:>18}{:>18}"
result_list = filter(lambda x: isinstance(x, SpeedTestResult), result_list)
print("\n\n------ Speed Test Performance ------", file=output_file)
print(format_str.format("Target", "RAM Read Speed", "RAM Write Speed", "ROM Read Speed"),
file=output_file)
print("", file=output_file)
for result in result_list:
if result.passed:
read_speed = "%.3f KB/s" % (float(result.read_speed) / float(1000))
write_speed = "%.3f KB/s" % (float(result.write_speed) / float(1000))
rom_read_speed = "%.3f KB/s" % (float(result.rom_read_speed) / float(1000))
else:
read_speed = "Fail"
write_speed = "Fail"
rom_read_speed = "Fail"
print(format_str.format(result.board,
read_speed, write_speed, rom_read_speed),
file=output_file)
print("", file=output_file)
def run(self, board):
passed = False
read_speed = None
write_speed = None
try:
result = self.test_function(board.unique_id)
except Exception as e:
print("Exception %s when testing board %s" % (e, board.unique_id))
result = SpeedTestResult()
result.passed = False
traceback.print_exc(file=sys.stdout)
result.board = board
result.test = self
return result
def speed_test(board_id):
with ConnectHelper.session_with_chosen_probe(unique_id=board_id, **get_session_options()) as session:
board = session.board
target_type = board.target_type
memory_map = board.target.get_memory_map()
ram_region = memory_map.get_default_region_of_type(MemoryType.RAM)
rom_region = memory_map.get_boot_memory()
# Limit region sizes used for performance testing to 1 MB. We don't really need to
# be reading all 32 MB of a QSPI!
ram_start = ram_region.start
ram_size = min(ram_region.length, _1MB)
rom_start = rom_region.start
rom_size = min(rom_region.length, _1MB)
target = board.target
test_pass_count = 0
test_count = 0
result = SpeedTestResult()
test_params = get_target_test_params(session)
session.probe.set_clock(test_params['test_clock'])
test_config = "uncached 8-bit"
def test_ram(record_speed=False, width=8):
print("\n\n------ TEST RAM READ / WRITE SPEED [%s] ------" % test_config)
test_addr = ram_start
test_size = ram_size
data = [randrange(1, 50) for x in range(test_size)]
start = time()
if width == 8:
target.write_memory_block8(test_addr, data)
elif width == 32:
target.write_memory_block32(test_addr, conversion.byte_list_to_u32le_list(data))
target.flush()
stop = time()
diff = stop - start
if diff == 0:
print("Unexpected ram write elapsed time of 0!")
write_speed = 0
else:
write_speed = test_size / diff
if record_speed:
result.write_speed = write_speed
print("Writing %i byte took %.3f seconds: %.3f B/s" % (test_size, diff, write_speed))
start = time()
if width == 8:
block = target.read_memory_block8(test_addr, test_size)
elif width == 32:
block = conversion.u32le_list_to_byte_list(target.read_memory_block32(test_addr, test_size // 4))
target.flush()
stop = time()
diff = stop - start
if diff == 0:
print("Unexpected ram read elapsed time of 0!")
read_speed = 0
else:
read_speed = test_size / diff
if record_speed:
result.read_speed = read_speed
print("Reading %i byte took %.3f seconds: %.3f B/s" % (test_size, diff, read_speed))
error = False
if len(block) != len(data):
error = True
print("ERROR: read length (%d) != write length (%d)!" % (len(block), len(data)))
if not error:
for i in range(len(block)):
if (block[i] != data[i]):
error = True
print("ERROR: 0x%X, 0x%X, 0x%X!!!" % ((test_addr + i), block[i], data[i]))
if error:
print("TEST FAILED")
else:
print("TEST PASSED")
return not error
def test_rom(record_speed=False, width=8):
print("\n\n------ TEST ROM READ SPEED [%s] ------" % test_config)
test_addr = rom_start
test_size = rom_size
start = time()
if width == 8:
block = target.read_memory_block8(test_addr, test_size)
elif width == 32:
block = conversion.u32le_list_to_byte_list(target.read_memory_block32(test_addr, test_size // 4))
target.flush()
stop = time()
diff = stop - start
if diff == 0:
print("Unexpected rom read elapsed time of 0!")
read_speed = 0
else:
read_speed = test_size / diff
if record_speed:
result.rom_read_speed = read_speed
print("Reading %i byte took %.3f seconds: %.3f B/s" % (test_size, diff, read_speed))
print("TEST PASSED")
return True
# 8-bit without memcache
passed = test_ram(True, 8)
test_count += 1
test_pass_count += int(passed)
passed = test_rom(True, 8)
test_count += 1
test_pass_count += int(passed)
# 32-bit without memcache
test_config = "uncached 32-bit"
passed = test_ram(False, 32)
test_count += 1
test_pass_count += int(passed)
passed = test_rom(False, 32)
test_count += 1
test_pass_count += int(passed)
# With memcache
target = target.get_target_context()
test_config = "cached 8-bit, pass 1"
passed = test_ram()
test_count += 1
test_pass_count += int(passed)
passed = test_rom()
test_count += 1
test_pass_count += int(passed)
# Again with memcache
test_config = "cached 8-bit, pass 2"
passed = test_ram()
test_count += 1
test_pass_count += int(passed)
passed = test_rom()
test_count += 1
test_pass_count += int(passed)
board.target.reset()
result.passed = test_count == test_pass_count
return result
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='pyOCD speed test')
parser.add_argument('-d', '--debug', action="store_true", help='Enable debug logging')
parser.add_argument("-da", "--daparg", dest="daparg", nargs='+', help="Send setting to DAPAccess layer.")
args = parser.parse_args()
level = logging.DEBUG if args.debug else logging.INFO
logging.basicConfig(level=level)
DAPAccess.set_args(args.daparg)
session = ConnectHelper.session_with_chosen_probe(**get_session_options())
test = SpeedTest()
result = [test.run(session.board)]
test.print_perf_info(result)
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