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How to use _avail_mbytes_via_nodes method in autotest

Best Python code snippet using autotest_python

cpuset.py

Source:cpuset.py

...102def move_self_into_container(name):103    me = str(os.getpid())104    move_tasks_into_container(name, [me])105    logging.debug('running self (pid %s) in container "%s"', me, name)106def _avail_mbytes_via_nodes(parent):107    # total mbytes of mem nodes available for new containers in parent108    free_nodes = available_exclusive_mem_nodes(parent)109    mbytes = nodes_avail_mbytes(free_nodes)110    # don't have exact model for how container mgr measures mem space111    # better here to underestimate than overestimate112    mbytes = max(mbytes - node_mbytes//2, 0)113    return mbytes114def _avail_bytes_via_pages(parent):115    # Get memory bytes available to parent container which could116    #  be allocated exclusively to new child containers.117    # This excludes mem previously allocated to existing children.118    available = container_bytes(parent)119    mem_files_pattern = os.path.join(full_path(parent),120                                     '*', 'memory.limit_in_bytes')121    for mem_file in glob.glob(mem_files_pattern):122        child_container = unpath(os.path.dirname(mem_file))123        available -= container_bytes(child_container)124    return available125def avail_mbytes(parent=SUPER_ROOT):126    # total mbytes available in parent, for exclusive use in new containers127    if fake_numa_containers:128        return _avail_mbytes_via_nodes(parent)129    else:130        return _avail_bytes_via_pages(parent) >> 20131def delete_leftover_test_containers():132    # recover mems and cores tied up by containers of prior failed tests:133    for child in inner_containers_of(SUPER_ROOT):134        _release_container_nest(child)135def my_lock(lockname):136    # lockname is 'inner'137    lockdir = os.environ['AUTODIR']138    lockname = os.path.join(lockdir, '.cpuset.lock.'+lockname)139    lockfile = open(lockname, 'w')140    fcntl.flock(lockfile, fcntl.LOCK_EX)141    return lockfile142def my_unlock(lockfile):...

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