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Sleep briefly while waiting for pending results to reduce CPU churn

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This commit is contained in:
James Cammarata 2016-10-06 08:49:47 -05:00
parent 087fb4265f
commit e26bce5221
1 changed files with 3 additions and 5 deletions
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8
lib/ansible/plugins/strategy/__init__.py
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@ -71,14 +71,12 @@ class SharedPluginLoaderObj:
_sentinel = object()
def results_thread_main(strategy):
#print("RESULT THREAD STARTING: %s" % threading.current_thread())
while True:
try:
result = strategy._final_q.get()
if type(result) == object:
break
else:
#print("result in thread is: %s" % result._result)
strategy._results_lock.acquire()
strategy._results.append(result)
strategy._results_lock.release()
@ -86,7 +84,6 @@ def results_thread_main(strategy):
break
except Queue.Empty:
pass
#print("RESULT THREAD EXITED: %s" % threading.current_thread())
class StrategyBase:
@ -121,7 +118,7 @@ class StrategyBase:
self._results = deque()
self._results_lock = threading.Condition(threading.Lock())
#print("creating thread for strategy %s" % id(self))
# create the result processing thread for reading results in the background
self._results_thread = threading.Thread(target=results_thread_main, args=(self,))
self._results_thread.daemon = True
self._results_thread.start()
@ -316,7 +313,6 @@ class StrategyBase:
continue
if original_task.register:
#print("^ REGISTERING RESULT %s" % original_task.register)
if original_task.run_once:
host_list = [host for host in self._inventory.get_hosts(iterator._play.hosts) if host.name not in self._tqm._unreachable_hosts]
else:
@ -533,6 +529,8 @@ class StrategyBase:
results = self._process_pending_results(iterator)
ret_results.extend(results)
if self._pending_results > 0:
time.sleep(0.001)
display.debug("no more pending results, returning what we have")