4f89e3ca35
The operation of perf tool can be checked using this sample. Signed-off-by: Mikhail Kushnerov <m.kushnerov@yadro.com>
40 lines
1.1 KiB
Python
Executable File
40 lines
1.1 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (c) 2023 KNS Group LLC (YADRO)
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#
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# SPDX-License-Identifier: Apache-2.0
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import logging
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import re
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from twister_harness import Shell
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from twister_harness import DeviceAdapter
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logger = logging.getLogger(__name__)
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def test_shell_perf(dut: DeviceAdapter, shell: Shell):
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shell.base_timeout=10
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logger.info('send "perf record 200 99" command')
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lines = shell.exec_command('perf record 200 99')
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assert 'Enabled perf' in lines, 'expected response not found'
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lines = dut.readlines_until(regex='.*Perf done!', print_output=True)
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logger.info('response is valid')
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logger.info('send "perf printbuf" command')
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lines = shell.exec_command('perf printbuf')
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lines = lines[1:-1]
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match = re.match(r"Perf buf length (\d+)", lines[0])
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assert match is not None, 'expected response not found'
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length = int(match.group(1))
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lines = lines[1:]
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assert length != 0, '0 length'
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assert length == len(lines), 'length dose not match with count of lines'
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i = 0
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while i < length:
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i += int(lines[i], 16) + 1
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assert i <= length, 'one of the samples is not true to size'
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