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How to use verify_cpu_offline_channel_add method in lisa

Best Python code snippet using lisa_python

cpusuite.py

Source:cpusuite.py

...161        requirement=simple_requirement(162            min_core_count=16,163        ),164    )165    def verify_cpu_offline_channel_add(self, log: Logger, node: Node) -> None:166        # skip test if kernel doesn't support cpu hotplug167        check_runnable(node)168        # set vmbus channels target cpu into 0 if kernel supports this feature.169        file_path_list = set_interrupts_assigned_cpu(log, node)170        # when kernel doesn't support above feature, we have to rely on current vm's171        # cpu usage. then collect the cpu not in used exclude cpu0.172        idle_cpus = get_idle_cpus(node)173        log.debug(f"idle cpus: {idle_cpus}")174        # save origin current channel175        origin_device_channel = (176            node.tools[Ethtool].get_device_channels_info("eth0", True)177        ).current_channels178        # set channel count into 1 to get idle cpus179        if len(idle_cpus) == 0:...

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