def configure():
"""
Configure Apps, based on config content.
"""
config = common.CONFIG_STORE.get_config()
if 'apps' not in config:
return 0
# set pid affinity
for app in config['apps']:
if 'pids' not in app:
continue
app_cores = app['cores'] if 'cores' in app else []
pool_id = common.CONFIG_STORE.app_to_pool(app['id'])
pool_cores = common.CONFIG_STORE.get_pool_attr('cores', pool_id)
# if there are no cores configured for App, or cores configured are
# not a subset of Pool cores, revert to all Pool cores
if not app_cores or not set(app_cores).issubset(pool_cores):
app_cores = pool_cores
if not app_cores:
continue
set_affinity(app['pids'], app_cores)
return 0
def pids_set(self, pids):
"""
Set Pool's PIDs
Parameters:
pids: Pool's PIDs
"""
old_pids = self.pids_get()
# change core affinity for PIDs not assigned to any pool
removed_pids = [pid for pid in old_pids if pid not in pids]
# skip pids assigned to any pool e.g.: apps moved to other pool
# pylint: disable=consider-using-dict-items
for pool_id in Pool.pools:
if pool_id == self.pool:
continue
removed_pids = \
[pid for pid in removed_pids if pid not in Pool.pools[pool_id]['pids']]
# remove pid form old pool
if old_pids:
# pylint: disable=consider-using-dict-items
for pool_id in Pool.pools:
if pool_id == self.pool:
continue
pids_moved_from_other_pool = \
[pid for pid in Pool.pools[pool_id]['pids'] if pid in pids]
if pids_moved_from_other_pool:
log.debug(
f"PIDs moved from other pools {pids_moved_from_other_pool}"
)
# update other pool PIDs
Pool.pools[pool_id]['pids'] = \
[pid for pid in Pool.pools[pool_id]['pids'] if pid not in pids]
Pool.pools[self.pool]['pids'] = pids
# set affinity of removed pids to default
if removed_pids:
log.debug(
f"PIDs to be set to core affinity to 'Default' CPUs {removed_pids}"
)
# get cores for Default Pool #0
cores = common.CONFIG_STORE.get_pool_attr('cores', 0)
set_affinity(removed_pids, cores)