mirror of
https://github.com/ClickHouse/ClickHouse.git
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38 lines
1.1 KiB
Python
38 lines
1.1 KiB
Python
#!/usr/bin/env python3
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import os
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import math
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import subprocess
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from tempfile import NamedTemporaryFile
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import pytest
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def run_command_in_container(cmd, *args):
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# /clickhouse is mounted by integration tests runner
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alternative_binary = os.getenv('CLICKHOUSE_BINARY', '/clickhouse')
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if alternative_binary:
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args += (
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'--volume', f'{alternative_binary}:/usr/bin/clickhouse',
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)
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return subprocess.check_output(['docker', 'run', '--rm',
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*args,
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'ubuntu:20.04',
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'sh', '-c', cmd,
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])
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def run_with_cpu_limit(cmd, num_cpus, *args):
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args += (
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'--cpus', f'{num_cpus}',
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)
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return run_command_in_container(cmd, *args)
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def test_cgroup_cpu_limit():
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for num_cpus in (1, 2, 4, 2.8):
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result = run_with_cpu_limit('clickhouse local -q "select value from system.settings where name=\'max_threads\'"', num_cpus)
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expect_output = (r"\'auto({})\'".format(math.ceil(num_cpus))).encode()
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assert result.strip() == expect_output, f"fail for cpu limit={num_cpus}, result={result.strip()}, expect={expect_output}"
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# For manual run
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if __name__ == '__main__':
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test_cgroup_cpu_limit()
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