stan/jdk-24
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

8220478: java/util/concurrent/ConcurrentHashMap/ToArray.java timed out intermittently

Browse Source 
8223379: Clarify ForkJoinPool.getStealCount() javadoc

Reviewed-by: martin
This commit is contained in:
Doug Lea 2019-05-24 08:51:04 -07:00
parent 22a4313efc
commit ae0b26613c
1 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java
View File

@ -867,8 +867,8 @@ public class ForkJoinPool extends AbstractExecutorService {
growArray(true);
else {
phase = 0; // full volatile unlock
if (a[m & (s - 1)] == null)
signal = true; // was empty
if (((s - base) & ~1) == 0) // size 0 or 1
signal = true;
}
}
return signal;
@ -2667,13 +2667,13 @@ public class ForkJoinPool extends AbstractExecutorService {
}
/**
* Returns an estimate of the total number of tasks stolen from
* one thread's work queue by another. The reported value
* underestimates the actual total number of steals when the pool
* is not quiescent. This value may be useful for monitoring and
* tuning fork/join programs: in general, steal counts should be
* high enough to keep threads busy, but low enough to avoid
* overhead and contention across threads.
* Returns an estimate of the total number of completed tasks that
* were executed by a thread other than their submitter. The
* reported value underestimates the actual total number of steals
* when the pool is not quiescent. This value may be useful for
* monitoring and tuning fork/join programs: in general, steal
* counts should be high enough to keep threads busy, but low
* enough to avoid overhead and contention across threads.
*
* @return the number of steals
*/