[ https://issues.apache.org/jira/browse/HBASE-11590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Nicolas Liochon updated HBASE-11590: ------------------------------------ Attachment: ExecutorServiceTest.java UnitQueuePU.java UnitQueueP.java LifoThreadPoolExecutorSQP.java > use a specific ThreadPoolExecutor > --------------------------------- > > Key: HBASE-11590 > URL: https://issues.apache.org/jira/browse/HBASE-11590 > Project: HBase > Issue Type: Bug > Components: Client, Performance > Affects Versions: 1.0.0, 2.0.0 > Reporter: Nicolas Liochon > Assignee: Nicolas Liochon > Priority: Minor > Fix For: 2.0.0 > > Attachments: ExecutorServiceTest.java, > LifoThreadPoolExecutorSQP.java, UnitQueueP.java, UnitQueuePU.java, tp.patch > > > The JDK TPE creates all the threads in the pool. As a consequence, we create > (by default) 256 threads even if we just need a few. > The attached TPE create threads only if we have something in the queue. > On a PE test with replica on, it improved the 99 latency percentile by 5%. > Warning: there are likely some race conditions, but I'm posting it here > because there is may be an implementation available somewhere we can use, or > a good reason not to do that. So feedback welcome as usual. -- This message was sent by Atlassian JIRA (v6.3.4#6332)