1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
# SPDX-License-Identifier: MIT
# Copyright © 2024 Intel Corporation
import logging
import re
import typing
from bench import exceptions
from bench.executors.shell import ShellExecutor
from bench.machines.machine_interface import DEFAULT_TIMEOUT, MachineInterface
logger = logging.getLogger('GemWsim')
class GemWsimResult(typing.NamedTuple):
elapsed_sec: float
workloads_per_sec: float
# Basic workloads
ONE_CYCLE_DURATION_MS = 10
PREEMPT_10MS_WORKLOAD = (f'1.DEFAULT.{int(ONE_CYCLE_DURATION_MS * 1000 / 2)}.0.0'
f',2.DEFAULT.{int(ONE_CYCLE_DURATION_MS * 1000 / 2)}.-1.1')
NON_PREEMPT_10MS_WORKLOAD = f'X.1.0,X.2.0,{PREEMPT_10MS_WORKLOAD}'
class GemWsim(ShellExecutor):
def __init__(self, machine: MachineInterface, num_clients: int = 1, num_repeats: int = 1,
workload: str = PREEMPT_10MS_WORKLOAD, timeout: int = DEFAULT_TIMEOUT) -> None:
super().__init__(
machine,
f'/usr/local/libexec/igt-gpu-tools/benchmarks/gem_wsim -w {workload} -c {num_clients} -r {num_repeats}',
timeout)
self.machine_id = str(machine)
def __str__(self) -> str:
return f'gem_wsim({self.machine_id}:{self.pid})'
def is_running(self) -> bool:
return not self.status().exited
def wait_results(self) -> GemWsimResult:
proc_result = self.wait()
if proc_result.exit_code == 0:
logger.info('%s: %s', self, proc_result.stdout)
# Try parse output ex.: 19.449s elapsed (102.836 workloads/s)
pattern = r'(?P<elapsed>\d+(\.\d*)?|\.\d+)s elapsed \((?P<wps>\d+(\.\d*)?|\.\d+) workloads/s\)'
match = re.search(pattern, proc_result.stdout, re.MULTILINE)
if match:
return GemWsimResult(float(match.group('elapsed')), float(match.group('wps')))
raise exceptions.GemWsimError(f'{self}: exit_code: {proc_result.exit_code}'
f' stdout: {proc_result.stdout} stderr: {proc_result.stderr}')
def gem_wsim_parallel_exec_and_check(vms: typing.List[MachineInterface], workload: str, iterations: int,
expected: typing.Optional[GemWsimResult] = None) -> GemWsimResult:
# launch on each VM in parallel
wsim_procs = [GemWsim(vm, 1, iterations, workload) for vm in vms]
for i, wsim in enumerate(wsim_procs):
assert wsim.is_running(), f'GemWsim failed to start on VM{i}'
results = [wsim.wait_results() for wsim in wsim_procs]
if expected is not None:
assert results[0].elapsed_sec > expected.elapsed_sec * 0.9
assert results[0].workloads_per_sec > expected.workloads_per_sec * 0.9
for r in results[1:]:
# check wps ratio ~1.0 with 10% tolerance
assert 0.9 < r.workloads_per_sec / results[0].workloads_per_sec < 1.1
# check elapsed ratio ~1.0 with 10% tolerance
assert 0.9 < r.elapsed_sec / results[0].elapsed_sec < 1.1
# return first result, all other are asserted to be ~same
return results[0]
|
