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pm:cpupower: Include test_raw_pylibcpupower.py

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This script demonstrates how to make use of, and tests, the bindings.

In the future, this script could become part of a larger test suite to
test the bindings and libcpupower.

Signed-off-by: John B. Wyatt IV <jwyatt@redhat.com>
Signed-off-by: John B. Wyatt IV <sageofredondo@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
John B. Wyatt IV 2024-09-04 22:19:10 -04:00 committed by Shuah Khan
parent 338f490e07
commit 660475266b
1 changed files with 42 additions and 0 deletions
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tools/power/cpupower/bindings/python/test_raw_pylibcpupower.py Executable file
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#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-2.0-only
import raw_pylibcpupower as p
# Simple function call
"""
Get cstate count
"""
cpu_cstates_count = p.cpuidle_state_count(0)
if cpu_cstates_count > -1:
print(f"CPU 0 has {cpu_cstates_count} c-states")
else:
print(f"cstate count error: return code: {cpu_cstates_count}")
"""
Disable cstate (will fail if the above is 0, ex: a virtual machine)
"""
cstate_disabled = p.cpuidle_state_disable(0, 0, 1)
if cpu_cstates_count == 0:
print(f"CPU 0 has {cpu_cstates_count} c-states")
else:
print(f"cstate count error: return code: {cpu_cstates_count}")
match cstate_disabled:
case 0:
print(f"CPU state disabled")
case -1:
print(f"Idlestate not available")
case _:
print(f"Not documented")
# Pointer example
topo = p.cpupower_topology()
total_cpus = p.get_cpu_topology(topo)
if total_cpus > 0:
print(f"Number of total cpus: {total_cpus} and number of cores: {topo.cores}")
else:
print(f"Error: could not get cpu topology")