updated balance load strategy

tsung-wei-huang · tsung-wei-huang · commit 435d2ecba40d · 2018-12-19T19:45:17.000-06:00
diff --git a/taskflow/threadpool/workstealing_threadpool.hpp b/taskflow/threadpool/workstealing_threadpool.hpp
@@ -415,7 +415,7 @@ void WorkStealingThreadpool<Closure>::_balance_load(unsigned me) {
 
   // return if no idler - this might not be the right value
   // but it doesn't affect the correctness
-  if(_idlers.empty() || _workers[me].queue.size() <= 1) {
+  if(_idlers.empty() || _workers[me].queue.size() <= 4) {
     return;
   }
         

Original file line number	Diff line number	Diff line change
`@@ -415,7 +415,7 @@ void WorkStealingThreadpool<Closure>::_balance_load(unsigned me) {`
`415`	`415`
`416`	`416`	`// return if no idler - this might not be the right value`
`417`	`417`	`// but it doesn't affect the correctness`
`418`		`- if(_idlers.empty() \|\| _workers[me].queue.size() <= 1) {`
	`418`	`+ if(_idlers.empty() \|\| _workers[me].queue.size() <= 4) {`
`419`	`419`	`return;`
`420`	`420`	`}`
`421`	`421`