Return-Path: X-Original-To: apmail-cassandra-commits-archive@www.apache.org Delivered-To: apmail-cassandra-commits-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 0FD64102CB for ; Tue, 26 May 2015 21:11:56 +0000 (UTC) Received: (qmail 13693 invoked by uid 500); 26 May 2015 21:11:33 -0000 Delivered-To: apmail-cassandra-commits-archive@cassandra.apache.org Received: (qmail 13654 invoked by uid 500); 26 May 2015 21:11:33 -0000 Mailing-List: contact commits-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@cassandra.apache.org Delivered-To: mailing list commits@cassandra.apache.org Received: (qmail 13643 invoked by uid 99); 26 May 2015 21:11:33 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 26 May 2015 21:11:33 +0000 Date: Tue, 26 May 2015 21:11:33 +0000 (UTC) From: "Joshua McKenzie (JIRA)" To: commits@cassandra.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (CASSANDRA-7486) Migrate to G1GC by default MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/CASSANDRA-7486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14559877#comment-14559877 ] Joshua McKenzie commented on CASSANDRA-7486: -------------------------------------------- If you can throw together and link a branch with a straight port I'll do some quick sanity testing on it both locally and on the CI server. For changing JVM params it should be really straightforward. > Migrate to G1GC by default > -------------------------- > > Key: CASSANDRA-7486 > URL: https://issues.apache.org/jira/browse/CASSANDRA-7486 > Project: Cassandra > Issue Type: New Feature > Components: Config > Reporter: Jonathan Ellis > Assignee: Albert P Tobey > Fix For: 3.0 beta 1 > > > See http://www.slideshare.net/MonicaBeckwith/garbage-first-garbage-collector-g1-7486gc-migration-to-expectations-and-advanced-tuning and https://twitter.com/rbranson/status/482113561431265281 > May want to default 2.1 to G1. > 2.1 is a different animal from 2.0 after moving most of memtables off heap. Suspect this will help G1 even more than CMS. (NB this is off by default but needs to be part of the test.) -- This message was sent by Atlassian JIRA (v6.3.4#6332)