| 1 | #!/usr/bin/python2.7 |
| 2 | # Note: this script is python2 and python 3 compatible. |
| 3 | # |
| 4 | # sgunmap-test.py |
| 5 | # |
| 6 | # Limited functonality test for trim workloads using fio's sg ioengine |
| 7 | # This checks only the three sets of reported iodepths |
| 8 | # |
| 9 | # !!!WARNING!!! |
| 10 | # This script carries out destructive tests. Be sure that |
| 11 | # there is no data you want to keep on the supplied devices. |
| 12 | # |
| 13 | # USAGE |
| 14 | # sgunmap-test.py char-device block-device fio-executable |
| 15 | # |
| 16 | # EXAMPLE |
| 17 | # t/sgunmap-test.py /dev/sg1 /dev/sdb ./fio |
| 18 | # |
| 19 | # REQUIREMENTS |
| 20 | # Python 2.6+ |
| 21 | # |
| 22 | # TEST MATRIX |
| 23 | # For both char-dev and block-dev these are the expected |
| 24 | # submit/complete IO depths |
| 25 | # |
| 26 | # blockdev chardev |
| 27 | # iodepth iodepth |
| 28 | # R QD1 sub/comp: 1-4=100% sub/comp: 1-4=100% |
| 29 | # W QD1 sub/comp: 1-4=100% sub/comp: 1-4=100% |
| 30 | # T QD1 sub/comp: 1-4=100% sub/comp: 1-4=100% |
| 31 | # |
| 32 | # R QD16, batch8 sub/comp: 1-4=100% sub/comp: 1-4=100% |
| 33 | # W QD16, batch8 sub/comp: 1-4=100% sub/comp: 1-4=100% |
| 34 | # T QD16, batch8 sub/comp: 1-4=100% sub/comp: 5-8=100% |
| 35 | # |
| 36 | # R QD16, batch16 sub/comp: 1-4=100% sub/comp: 1-4=100% |
| 37 | # W QD16, batch16 sub/comp: 1-4=100% sub/comp: 1-4=100% |
| 38 | # T QD16, batch16 sub/comp: 1-4=100% sub/comp: 9-16=100% |
| 39 | # |
| 40 | |
| 41 | from __future__ import absolute_import |
| 42 | from __future__ import print_function |
| 43 | import sys |
| 44 | import json |
| 45 | import argparse |
| 46 | import traceback |
| 47 | import subprocess |
| 48 | from six.moves import range |
| 49 | |
| 50 | |
| 51 | def parse_args(): |
| 52 | parser = argparse.ArgumentParser() |
| 53 | parser.add_argument('chardev', |
| 54 | help='character device target (e.g., /dev/sg0)') |
| 55 | parser.add_argument('blockdev', |
| 56 | help='block device target (e.g., /dev/sda)') |
| 57 | parser.add_argument('fio', |
| 58 | help='path to fio executable (e.g., ./fio)') |
| 59 | args = parser.parse_args() |
| 60 | |
| 61 | return args |
| 62 | |
| 63 | # |
| 64 | # With block devices, |
| 65 | # iodepth = 1 always |
| 66 | # submit = complete = 1-4 always |
| 67 | # With character devices, |
| 68 | # RW |
| 69 | # iodepth = qd |
| 70 | # submit = 1-4 |
| 71 | # complete = 1-4 except for the IOs in flight |
| 72 | # when the job is ending |
| 73 | # T |
| 74 | # iodepth = qd |
| 75 | # submit = qdbatch |
| 76 | # complete = qdbatch except for the IOs in flight |
| 77 | # when the job is ending |
| 78 | # |
| 79 | |
| 80 | |
| 81 | def check(jsondata, parameters, block, qd, qdbatch, rw): |
| 82 | iodepth = jsondata['iodepth_level'] |
| 83 | submit = jsondata['iodepth_submit'] |
| 84 | complete = jsondata['iodepth_complete'] |
| 85 | |
| 86 | try: |
| 87 | if block: |
| 88 | assert iodepth['1'] == 100.0 |
| 89 | assert submit['4'] == 100.0 |
| 90 | assert complete['4'] == 100.0 |
| 91 | elif 'read' in rw or 'write' in rw: |
| 92 | assert iodepth[str(qd)] > 99.9 |
| 93 | assert submit['4'] == 100.0 |
| 94 | assert complete['4'] > 99.9 |
| 95 | else: |
| 96 | if qdbatch <= 4: |
| 97 | batchkey = '4' |
| 98 | elif qdbatch > 64: |
| 99 | batchkey = '>=64' |
| 100 | else: |
| 101 | batchkey = str(qdbatch) |
| 102 | if qd >= 64: |
| 103 | qdkey = ">=64" |
| 104 | else: |
| 105 | qdkey = str(qd) |
| 106 | assert iodepth[qdkey] > 99 |
| 107 | assert submit[batchkey] == 100.0 |
| 108 | assert complete[batchkey] > 99 |
| 109 | except AssertionError: |
| 110 | print("Assertion failed") |
| 111 | traceback.print_exc() |
| 112 | print(jsondata) |
| 113 | return |
| 114 | |
| 115 | print("**********passed*********") |
| 116 | |
| 117 | |
| 118 | def runalltests(args, qd, batch): |
| 119 | block = False |
| 120 | for dev in [args.chardev, args.blockdev]: |
| 121 | for rw in ["randread", "randwrite", "randtrim"]: |
| 122 | parameters = ["--name=test", |
| 123 | "--time_based", |
| 124 | "--runtime=30s", |
| 125 | "--output-format=json", |
| 126 | "--ioengine=sg", |
| 127 | "--rw={0}".format(rw), |
| 128 | "--filename={0}".format(dev), |
| 129 | "--iodepth={0}".format(qd), |
| 130 | "--iodepth_batch={0}".format(batch)] |
| 131 | |
| 132 | print(parameters) |
| 133 | output = subprocess.check_output([args.fio] + parameters) |
| 134 | jsondata = json.loads(output) |
| 135 | jobdata = jsondata['jobs'][0] |
| 136 | check(jobdata, parameters, block, qd, batch, rw) |
| 137 | block = True |
| 138 | |
| 139 | |
| 140 | def runcdevtrimtest(args, qd, batch): |
| 141 | parameters = ["--name=test", |
| 142 | "--time_based", |
| 143 | "--runtime=30s", |
| 144 | "--output-format=json", |
| 145 | "--ioengine=sg", |
| 146 | "--rw=randtrim", |
| 147 | "--filename={0}".format(args.chardev), |
| 148 | "--iodepth={0}".format(qd), |
| 149 | "--iodepth_batch={0}".format(batch)] |
| 150 | |
| 151 | print(parameters) |
| 152 | output = subprocess.check_output([args.fio] + parameters) |
| 153 | jsondata = json.loads(output) |
| 154 | jobdata = jsondata['jobs'][0] |
| 155 | check(jobdata, parameters, False, qd, batch, "randtrim") |
| 156 | |
| 157 | |
| 158 | if __name__ == '__main__': |
| 159 | args = parse_args() |
| 160 | |
| 161 | runcdevtrimtest(args, 32, 2) |
| 162 | runcdevtrimtest(args, 32, 4) |
| 163 | runcdevtrimtest(args, 32, 8) |
| 164 | runcdevtrimtest(args, 64, 4) |
| 165 | runcdevtrimtest(args, 64, 8) |
| 166 | runcdevtrimtest(args, 64, 16) |
| 167 | runcdevtrimtest(args, 128, 8) |
| 168 | runcdevtrimtest(args, 128, 16) |
| 169 | runcdevtrimtest(args, 128, 32) |
| 170 | |
| 171 | runalltests(args, 1, 1) |
| 172 | runalltests(args, 16, 2) |
| 173 | runalltests(args, 16, 16) |