| 1 | #!/usr/bin/python |
| 2 | # Note: this script is python2 and python3 compatible. |
| 3 | # |
| 4 | # strided.py |
| 5 | # |
| 6 | # Test zonemode=strided. This uses the null ioengine when no file is |
| 7 | # specified. If a file is specified, use it for randdom read testing. |
| 8 | # Some of the zoneranges in the tests are 16MiB. So when using a file |
| 9 | # a minimum size of 32MiB is recommended. |
| 10 | # |
| 11 | # USAGE |
| 12 | # python strided.py fio-executable [-f file/device] |
| 13 | # |
| 14 | # EXAMPLES |
| 15 | # python t/strided.py ./fio |
| 16 | # python t/strided.py ./fio -f /dev/sda |
| 17 | # dd if=/dev/zero of=temp bs=1M count=32 |
| 18 | # python t/strided.py ./fio -f temp |
| 19 | # |
| 20 | # REQUIREMENTS |
| 21 | # Python 2.6+ |
| 22 | # |
| 23 | # ===TEST MATRIX=== |
| 24 | # |
| 25 | # --zonemode=strided, zoneskip unset |
| 26 | # w/ randommap and LFSR |
| 27 | # zonesize=zonerange all blocks in zonerange touched |
| 28 | # zonesize>zonerange all blocks touched and roll-over back into zone |
| 29 | # zonesize<zonerange all blocks inside zone |
| 30 | # |
| 31 | # w/o randommap all blocks inside zone |
| 32 | # |
| 33 | |
| 34 | from __future__ import absolute_import |
| 35 | from __future__ import print_function |
| 36 | import os |
| 37 | import sys |
| 38 | import argparse |
| 39 | import subprocess |
| 40 | |
| 41 | |
| 42 | def parse_args(): |
| 43 | parser = argparse.ArgumentParser() |
| 44 | parser.add_argument('fio', |
| 45 | help='path to fio executable (e.g., ./fio)') |
| 46 | parser.add_argument('-f', '--filename', help="file/device to test") |
| 47 | args = parser.parse_args() |
| 48 | |
| 49 | return args |
| 50 | |
| 51 | |
| 52 | def run_fio(fio, test, index): |
| 53 | filename = "strided" |
| 54 | fio_args = [ |
| 55 | "--name=strided", |
| 56 | "--zonemode=strided", |
| 57 | "--log_offset=1", |
| 58 | "--randrepeat=0", |
| 59 | "--rw=randread", |
| 60 | "--write_iops_log={0}{1:03d}".format(filename, index), |
| 61 | "--output={0}{1:03d}.out".format(filename, index), |
| 62 | "--zonerange={zonerange}".format(**test), |
| 63 | "--zonesize={zonesize}".format(**test), |
| 64 | "--bs={bs}".format(**test), |
| 65 | ] |
| 66 | if 'norandommap' in test: |
| 67 | fio_args.append('--norandommap') |
| 68 | if 'random_generator' in test: |
| 69 | fio_args.append('--random_generator={random_generator}'.format(**test)) |
| 70 | if 'offset' in test: |
| 71 | fio_args.append('--offset={offset}'.format(**test)) |
| 72 | if 'filename' in test: |
| 73 | fio_args.append('--filename={filename}'.format(**test)) |
| 74 | fio_args.append('--filesize={filesize})'.format(**test)) |
| 75 | else: |
| 76 | fio_args.append('--ioengine=null') |
| 77 | fio_args.append('--size={size}'.format(**test)) |
| 78 | fio_args.append('--io_size={io_size}'.format(**test)) |
| 79 | fio_args.append('--filesize={size})'.format(**test)) |
| 80 | |
| 81 | output = subprocess.check_output([fio] + fio_args, universal_newlines=True) |
| 82 | |
| 83 | f = open("{0}{1:03d}_iops.1.log".format(filename, index), "r") |
| 84 | log = f.read() |
| 85 | f.close() |
| 86 | |
| 87 | return log |
| 88 | |
| 89 | |
| 90 | def check_output(iops_log, test): |
| 91 | zonestart = 0 if 'offset' not in test else test['offset'] |
| 92 | iospersize = test['zonesize'] / test['bs'] |
| 93 | iosperrange = test['zonerange'] / test['bs'] |
| 94 | iosperzone = 0 |
| 95 | lines = iops_log.split('\n') |
| 96 | zoneset = set() |
| 97 | |
| 98 | for line in lines: |
| 99 | if len(line) == 0: |
| 100 | continue |
| 101 | |
| 102 | if iosperzone == iospersize: |
| 103 | # time to move to a new zone |
| 104 | iosperzone = 0 |
| 105 | zoneset = set() |
| 106 | zonestart += test['zonerange'] |
| 107 | if zonestart >= test['filesize']: |
| 108 | zonestart = 0 if 'offset' not in test else test['offset'] |
| 109 | |
| 110 | iosperzone = iosperzone + 1 |
| 111 | tokens = line.split(',') |
| 112 | offset = int(tokens[4]) |
| 113 | if offset < zonestart or offset >= zonestart + test['zonerange']: |
| 114 | print("Offset {0} outside of zone starting at {1}".format( |
| 115 | offset, zonestart)) |
| 116 | return False |
| 117 | |
| 118 | # skip next section if norandommap is enabled with no |
| 119 | # random_generator or with a random_generator != lfsr |
| 120 | if 'norandommap' in test: |
| 121 | if 'random_generator' in test: |
| 122 | if test['random_generator'] != 'lfsr': |
| 123 | continue |
| 124 | else: |
| 125 | continue |
| 126 | |
| 127 | # we either have a random map enabled or we |
| 128 | # are using an LFSR |
| 129 | # so all blocks should be unique and we should have |
| 130 | # covered the entire zone when iosperzone % iosperrange == 0 |
| 131 | block = (offset - zonestart) / test['bs'] |
| 132 | if block in zoneset: |
| 133 | print("Offset {0} in zone already touched".format(offset)) |
| 134 | return False |
| 135 | |
| 136 | zoneset.add(block) |
| 137 | if iosperzone % iosperrange == 0: |
| 138 | if len(zoneset) != iosperrange: |
| 139 | print("Expected {0} blocks in zone but only saw {1}".format( |
| 140 | iosperrange, len(zoneset))) |
| 141 | return False |
| 142 | zoneset = set() |
| 143 | |
| 144 | return True |
| 145 | |
| 146 | |
| 147 | if __name__ == '__main__': |
| 148 | args = parse_args() |
| 149 | |
| 150 | tests = [ # randommap enabled |
| 151 | { |
| 152 | "zonerange": 4096, |
| 153 | "zonesize": 4096, |
| 154 | "bs": 4096, |
| 155 | "offset": 8*4096, |
| 156 | "size": 16*4096, |
| 157 | "io_size": 16*4096, |
| 158 | }, |
| 159 | { |
| 160 | "zonerange": 4096, |
| 161 | "zonesize": 4096, |
| 162 | "bs": 4096, |
| 163 | "size": 16*4096, |
| 164 | "io_size": 16*4096, |
| 165 | }, |
| 166 | { |
| 167 | "zonerange": 16*1024*1024, |
| 168 | "zonesize": 16*1024*1024, |
| 169 | "bs": 4096, |
| 170 | "size": 256*1024*1024, |
| 171 | "io_size": 256*1024*204, |
| 172 | }, |
| 173 | { |
| 174 | "zonerange": 4096, |
| 175 | "zonesize": 4*4096, |
| 176 | "bs": 4096, |
| 177 | "size": 16*4096, |
| 178 | "io_size": 16*4096, |
| 179 | }, |
| 180 | { |
| 181 | "zonerange": 16*1024*1024, |
| 182 | "zonesize": 32*1024*1024, |
| 183 | "bs": 4096, |
| 184 | "size": 256*1024*1024, |
| 185 | "io_size": 256*1024*204, |
| 186 | }, |
| 187 | { |
| 188 | "zonerange": 8192, |
| 189 | "zonesize": 4096, |
| 190 | "bs": 4096, |
| 191 | "size": 16*4096, |
| 192 | "io_size": 16*4096, |
| 193 | }, |
| 194 | { |
| 195 | "zonerange": 16*1024*1024, |
| 196 | "zonesize": 8*1024*1024, |
| 197 | "bs": 4096, |
| 198 | "size": 256*1024*1024, |
| 199 | "io_size": 256*1024*204, |
| 200 | }, |
| 201 | # lfsr |
| 202 | { |
| 203 | "random_generator": "lfsr", |
| 204 | "zonerange": 4096*1024, |
| 205 | "zonesize": 4096*1024, |
| 206 | "bs": 4096, |
| 207 | "offset": 8*4096*1024, |
| 208 | "size": 16*4096*1024, |
| 209 | "io_size": 16*4096*1024, |
| 210 | }, |
| 211 | { |
| 212 | "random_generator": "lfsr", |
| 213 | "zonerange": 4096*1024, |
| 214 | "zonesize": 4096*1024, |
| 215 | "bs": 4096, |
| 216 | "size": 16*4096*1024, |
| 217 | "io_size": 16*4096*1024, |
| 218 | }, |
| 219 | { |
| 220 | "random_generator": "lfsr", |
| 221 | "zonerange": 16*1024*1024, |
| 222 | "zonesize": 16*1024*1024, |
| 223 | "bs": 4096, |
| 224 | "size": 256*1024*1024, |
| 225 | "io_size": 256*1024*204, |
| 226 | }, |
| 227 | { |
| 228 | "random_generator": "lfsr", |
| 229 | "zonerange": 4096*1024, |
| 230 | "zonesize": 4*4096*1024, |
| 231 | "bs": 4096, |
| 232 | "size": 16*4096*1024, |
| 233 | "io_size": 16*4096*1024, |
| 234 | }, |
| 235 | { |
| 236 | "random_generator": "lfsr", |
| 237 | "zonerange": 16*1024*1024, |
| 238 | "zonesize": 32*1024*1024, |
| 239 | "bs": 4096, |
| 240 | "size": 256*1024*1024, |
| 241 | "io_size": 256*1024*204, |
| 242 | }, |
| 243 | { |
| 244 | "random_generator": "lfsr", |
| 245 | "zonerange": 8192*1024, |
| 246 | "zonesize": 4096*1024, |
| 247 | "bs": 4096, |
| 248 | "size": 16*4096*1024, |
| 249 | "io_size": 16*4096*1024, |
| 250 | }, |
| 251 | { |
| 252 | "random_generator": "lfsr", |
| 253 | "zonerange": 16*1024*1024, |
| 254 | "zonesize": 8*1024*1024, |
| 255 | "bs": 4096, |
| 256 | "size": 256*1024*1024, |
| 257 | "io_size": 256*1024*204, |
| 258 | }, |
| 259 | # norandommap |
| 260 | { |
| 261 | "norandommap": 1, |
| 262 | "zonerange": 4096, |
| 263 | "zonesize": 4096, |
| 264 | "bs": 4096, |
| 265 | "offset": 8*4096, |
| 266 | "size": 16*4096, |
| 267 | "io_size": 16*4096, |
| 268 | }, |
| 269 | { |
| 270 | "norandommap": 1, |
| 271 | "zonerange": 4096, |
| 272 | "zonesize": 4096, |
| 273 | "bs": 4096, |
| 274 | "size": 16*4096, |
| 275 | "io_size": 16*4096, |
| 276 | }, |
| 277 | { |
| 278 | "norandommap": 1, |
| 279 | "zonerange": 16*1024*1024, |
| 280 | "zonesize": 16*1024*1024, |
| 281 | "bs": 4096, |
| 282 | "size": 256*1024*1024, |
| 283 | "io_size": 256*1024*204, |
| 284 | }, |
| 285 | { |
| 286 | "norandommap": 1, |
| 287 | "zonerange": 4096, |
| 288 | "zonesize": 8192, |
| 289 | "bs": 4096, |
| 290 | "size": 16*4096, |
| 291 | "io_size": 16*4096, |
| 292 | }, |
| 293 | { |
| 294 | "norandommap": 1, |
| 295 | "zonerange": 16*1024*1024, |
| 296 | "zonesize": 32*1024*1024, |
| 297 | "bs": 4096, |
| 298 | "size": 256*1024*1024, |
| 299 | "io_size": 256*1024*204, |
| 300 | }, |
| 301 | { |
| 302 | "norandommap": 1, |
| 303 | "zonerange": 8192, |
| 304 | "zonesize": 4096, |
| 305 | "bs": 4096, |
| 306 | "size": 16*4096, |
| 307 | "io_size": 16*4096, |
| 308 | }, |
| 309 | { |
| 310 | "norandommap": 1, |
| 311 | "zonerange": 16*1024*1024, |
| 312 | "zonesize": 8*1024*1024, |
| 313 | "bs": 4096, |
| 314 | "size": 256*1024*1024, |
| 315 | "io_size": 256*1024*1024, |
| 316 | }, |
| 317 | |
| 318 | ] |
| 319 | |
| 320 | index = 1 |
| 321 | passed = 0 |
| 322 | failed = 0 |
| 323 | |
| 324 | if args.filename: |
| 325 | statinfo = os.stat(args.filename) |
| 326 | filesize = statinfo.st_size |
| 327 | if filesize == 0: |
| 328 | f = os.open(args.filename, os.O_RDONLY) |
| 329 | filesize = os.lseek(f, 0, os.SEEK_END) |
| 330 | os.close(f) |
| 331 | |
| 332 | for test in tests: |
| 333 | if args.filename: |
| 334 | test['filename'] = args.filename |
| 335 | test['filesize'] = filesize |
| 336 | else: |
| 337 | test['filesize'] = test['size'] |
| 338 | iops_log = run_fio(args.fio, test, index) |
| 339 | status = check_output(iops_log, test) |
| 340 | print("Test {0} {1}".format(index, ("PASSED" if status else "FAILED"))) |
| 341 | if status: |
| 342 | passed = passed + 1 |
| 343 | else: |
| 344 | failed = failed + 1 |
| 345 | index = index + 1 |
| 346 | |
| 347 | print("{0} tests passed, {1} failed".format(passed, failed)) |
| 348 | |
| 349 | sys.exit(failed) |