Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 3D2D1200B94 for ; Sun, 18 Sep 2016 06:08:22 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 3BF68160AD6; Sun, 18 Sep 2016 04:08:22 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id AF1B0160ACD for ; Sun, 18 Sep 2016 06:08:21 +0200 (CEST) Received: (qmail 96863 invoked by uid 500); 18 Sep 2016 04:08:20 -0000 Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@hbase.apache.org Received: (qmail 96817 invoked by uid 99); 18 Sep 2016 04:08:20 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 18 Sep 2016 04:08:20 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 93EFE2C0D5C for ; Sun, 18 Sep 2016 04:08:20 +0000 (UTC) Date: Sun, 18 Sep 2016 04:08:20 +0000 (UTC) From: "Duo Zhang (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-7612) [JDK8] Replace use of high-scale-lib counters with intrinsic facilities MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Sun, 18 Sep 2016 04:08:22 -0000 [ https://issues.apache.org/jira/browse/HBASE-7612?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Duo Zhang updated HBASE-7612: ----------------------------- Affects Version/s: 2.0.0 Component/s: metrics > [JDK8] Replace use of high-scale-lib counters with intrinsic facilities > ----------------------------------------------------------------------- > > Key: HBASE-7612 > URL: https://issues.apache.org/jira/browse/HBASE-7612 > Project: HBase > Issue Type: Sub-task > Components: metrics > Affects Versions: 2.0.0 > Reporter: Andrew Purtell > Assignee: Duo Zhang > Priority: Trivial > Fix For: 2.0.0 > > Attachments: HBASE-7612.patch > > > JEP155 introduces a few new classes (DoubleAccumulator, DoubleAdder, LongAccumulator, LongAdder) that "internally employ contention-reduction techniques that provide huge throughput improvements as compared to Atomic variables". There are applications of these where we are currently using Cliff Click's high-scale-lib and for metrics. > See http://openjdk.java.net/jeps/155 -- This message was sent by Atlassian JIRA (v6.3.4#6332)