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How to use set_hugepage method in lisa

Best Python code snippet using lisa_python

setup_dpdk_env.py

Source:setup_dpdk_env.py

...19		bus_info = proc_shell(exe_str)20		bus_info = bus_info.split("\n")[0]21		return proc_shell("cat /sys/bus/pci/devices/" + bus_info + "/numa_node").split("\n")[0]2223def set_hugepage(numa_node, nr_hugepages):24	if None == nr_hugepages:25		nr_hugepages = 1024026	if None != numa_node:27		proc_shell("echo "+ str(nr_hugepages) + \28		" > /sys/devices/system/node/node" + str(numa_node) + "/hugepages/hugepages-2048kB/nr_hugepages")2930def bind_uio(RTE_SDK, RTE_TARGET, nic):31	if 0 == len(proc_shell('lsmod | grep uio')):32		proc_shell('modprobe uio')33	if 0 == len(proc_shell('lsmod | grep igb_uio')):34		proc_shell('insmod ' + RTE_SDK + '/' + RTE_TARGET + '/kmod/igb_uio.ko')35	if 0 < len(proc_shell('lsmod | grep igb_uio')):36		proc_shell('ifconfig ' + nic + ' down')37		proc_shell(RTE_SDK + '/tools/dpdk-devbind.py --bind=igb_uio ' + nic)3839if __name__ == "__main__":40	if len(sys.argv) > 2:41		print("USAGE: %s conf_file" % sys.argv[0])42		sys.exit(1)43	if False == os.path.exists(ENV_CONF_PATH):44		if 2 == len(sys.argv):45			conf_file = sys.argv[1]46	else:47		conf_file = ENV_CONF_PATH48	if None == conf_file:49		print('ERR: conf file not exist')50		sys.exit(1)5152	config = configparser.ConfigParser()53	config.read(conf_file)54	RTE_SDK = None55	RTE_TARGET = None56	has_var_section = config.has_section('VAR')57	if has_var_section:58		RTE_SDK=config.get('VAR', 'RTE_SDK')59		RTE_TARGET=config.get('VAR', 'RTE_TARGET')6061	#if RTE var not exist, get from system env var62	if None == RTE_SDK or 0 == len(RTE_SDK):63		RTE_SDK = os.environ.get('RTE_SDK')64		RTE_TARGET = os.environ.get('RTE_TARGET')65	if None == RTE_SDK or 0 == len(RTE_SDK):66		print('ERR: RTE_SDK or RTE_TARGET undefined')67		sys.exit(1)6869	nic = [None, None]70	nr_hugepages = [None, None]71	numa_node = [None, None]72	for i in range(0,2):73		nic[i] = config.get('NIC'+ str(i+1), 'name')74		if config.has_option('NIC' + str(i+1), 'nr_hugepages'):75			nr_hugepages[i] = int(config.get('NIC' + str(i+1), 'nr_hugepages'))76		if None != nic[i] and 0 < len(proc_shell('ifconfig ' + nic[i])):77			numa_node[i] = int(get_numa_node(nic[i]))78			set_hugepage(numa_node[i], nr_hugepages[i])79			bind_uio(RTE_SDK, RTE_TARGET, nic[i])80			81	if (None == numa_node[0]) and (None != numa_node[1]):82		set_hugepage(1 - numa_node[1], 1024)83	if (None == numa_node[1]) and (None != numa_node[0]):84		set_hugepage(1 - numa_node[0], 1024)85	if (numa_node[1] == numa_node[0]) and (None != numa_node[0]):86		set_hugepage(1 - numa_node[0], 1024)8788	proc_shell('mkdir /mnt/huge ; mount -t hugetlbfs nodev /mnt/huge')8990	#write RTE env var to conf file, in case of reboot91	if False == has_var_section:92		config = configparser.RawConfigParser()93		config.add_section('VAR')94		config.set('VAR', 'RTE_TARGET', RTE_TARGET)95		config.set('VAR', 'RTE_SDK', RTE_SDK)96		with open(conf_file, 'ab') as configfile:
...

hugepage_reset.py

Source:hugepage_reset.py

...18    :param test: QEMU test object.19    :param params: Dictionary with test parameters.20    :param env: Dictionary with the test environment.21    """22    def set_hugepage():23        """Set nr_hugepages"""24        for h_size in (origin_nr - 2, origin_nr + 2):25            hp_config.target_hugepages = h_size26            hp_config.set_hugepages()27            if params.get('on_numa_node'):28                logging.info('Set hugepage size %s to target node %s',29                             h_size, target_node)30                hp_config.set_node_num_huge_pages(h_size, target_node,31                                                  hugepage_size)32    origin_nr = int(params['origin_nr'])33    host_numa_node = utils_misc.NumaInfo()34    mem = int(float(utils_misc.normalize_data_size("%sM" % params["mem"])))35    if params.get('on_numa_node'):36        for target_node in host_numa_node.get_online_nodes_withmem():37            node_mem_free = host_numa_node.read_from_node_meminfo(38                target_node, 'MemFree')39            if int(node_mem_free) > mem:40                params['target_nodes'] = target_node41                params["qemu_command_prefix"] = ("numactl --membind=%s" %42                                                 target_node)43                params['target_num_node%s' % target_node] = origin_nr44                break45            logging.info(46                'The free memory of node %s is %s, is not enough for'47                ' guest memory: %s', target_node, node_mem_free, mem)48        else:49            test.cancel("No node on your host has sufficient free memory for "50                        "this test.")51    hp_config = test_setup.HugePageConfig(params)52    hp_config.target_hugepages = origin_nr53    logging.info('Setup hugepage number to %s', origin_nr)54    hp_config.setup()55    hugepage_size = utils_memory.get_huge_page_size()56    params['start_vm'] = "yes"57    vm_name = params['main_vm']58    env_process.preprocess_vm(test, params, env, vm_name)59    vm = env.get_vm(vm_name)60    params['stress_args'] = '--vm %s --vm-bytes 256M --timeout 30s' % (61            mem // 512)62    logging.info('Loading stress on guest.')63    stress = utils_test.VMStress(vm, 'stress', params)64    stress.load_stress_tool()65    time.sleep(30)66    stress.unload_stress()67    set_hugepage()68    hp_config.cleanup()...

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