class SubsystemCpuset(Subsystem):
NAME = 'cpuset'
STATS = {
'memory_pressure': long,
}
CONFIGS = {
'cpu_exclusive': 0,
# str object something like '0', '0-1', and '0-1,3,4'
'cpus': host.CPUInfo().get_online(),
'mem_exclusive': 0,
'mem_hardwall': 0,
'memory_migrate': 0,
'memory_pressure_enabled': 0,
'memory_spread_page': 0,
'memory_spread_slab': 0,
# same as 'cpus'
'mems': host.MemInfo().get_online(),
'sched_load_balance': 1,
'sched_relax_domain_level': -1,
}
def get_init_parameters(self, parent_configs):
params = {}
params['cpus'] = parent_configs['cpus']
params['mems'] = parent_configs['mems']
return params
def calc_memory_rate(val):
meminfo = host.MemInfo()
meminfo.update()
return float(val) / meminfo['MemTotal']