Eclipse
/
jetty.project
mirror of https://github.com/jetty/jetty.project.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Issue #1637 

Limit reserved threads if threadpool is of small size
This commit is contained in:
Greg Wilkins 2017-08-07 10:30:12 +10:00 committed by Joakim Erdfelt
parent 3b297a2557
commit 9f285d92e7
1 changed files with 19 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
jetty-util/src/main/java/org/eclipse/jetty/util/thread/ReservedThreadExecutor.java
View File

@ -50,12 +50,29 @@ public class ReservedThreadExecutor extends AbstractLifeCycle implements Executo
/**
* @param executor The executor to use to obtain threads
* @param capacity The number of threads to preallocate. If less than 0 then the number of available processors is used.
* @param capacity The number of threads to preallocate. If less than 0 then capacity
* is calculated based on a heuristic from the number of available processors and
* thread pool size.
*/
public ReservedThreadExecutor(Executor executor,int capacity)
{
_executor = executor;
_queue = new ReservedThread[capacity>=0?capacity:Runtime.getRuntime().availableProcessors()];
if (capacity < 0)
{
if (executor instanceof ThreadPool)
{
int threads = ((ThreadPool)executor).getThreads();
int cpus = Runtime.getRuntime().availableProcessors();
capacity = Math.max(1,Math.min(cpus,threads/8));
}
else
{
capacity = Runtime.getRuntime().availableProcessors();
}
}
_queue = new ReservedThread[capacity];
}
public Executor getExecutor()