| # Copyright 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. |
| |
| import re |
| import logging |
| |
| from devlib.utils.types import numeric |
| |
| |
| GEM5STATS_FIELD_REGEX = re.compile("^(?P<key>[^- ]\S*) +(?P<value>[^#]+).+$") |
| GEM5STATS_DUMP_HEAD = '---------- Begin Simulation Statistics ----------' |
| GEM5STATS_DUMP_TAIL = '---------- End Simulation Statistics ----------' |
| GEM5STATS_ROI_NUMBER = 8 |
| |
| logger = logging.getLogger('gem5') |
| |
| |
| def iter_statistics_dump(stats_file): |
| ''' |
| Yields statistics dumps as dicts. The parameter is assumed to be a stream |
| reading from the statistics log file. |
| ''' |
| cur_dump = {} |
| while True: |
| line = stats_file.readline() |
| if not line: |
| break |
| if GEM5STATS_DUMP_TAIL in line: |
| yield cur_dump |
| cur_dump = {} |
| else: |
| res = GEM5STATS_FIELD_REGEX.match(line) |
| if res: |
| k = res.group("key") |
| vtext = res.group("value") |
| try: |
| v = map(numeric, vtext.split()) |
| cur_dump[k] = v[0] if len(v)==1 else set(v) |
| except ValueError: |
| msg = 'Found non-numeric entry in gem5 stats ({}: {})' |
| logger.warning(msg.format(k, vtext)) |
| |