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How to use perf_nvme method in lisa

Best Python code snippet using lisa_python

nvmeperf.py

Source:nvmeperf.py

...31        requirement=simple_requirement(32            supported_features=[NvmeSettings(disk_count=8)],33        ),34    )35    def perf_nvme(self, node: Node, result: TestResult) -> None:36        nvme = node.features[Nvme]37        nvme_namespaces = nvme.get_namespaces()38        disk_count = len(nvme_namespaces)39        assert_that(disk_count).described_as(40            "At least 1 NVMe disk for fio testing."41        ).is_greater_than(0)42        filename = ":".join(nvme_namespaces)43        echo = node.tools[Echo]44        # This will have kernel avoid sending IPI to finish I/O on the issuing CPUs45        # if they are not on the same NUMA node of completion CPU.46        # This setting will give a better and more stable IOPS.47        for nvme_namespace in nvme_namespaces:48            # /dev/nvme0n1 => nvme0n149            disk_name = nvme_namespace.split("/")[-1]...

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