Return-Path: X-Original-To: apmail-giraph-dev-archive@www.apache.org Delivered-To: apmail-giraph-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id B011F10278 for ; Fri, 14 Feb 2014 18:24:27 +0000 (UTC) Received: (qmail 26309 invoked by uid 500); 14 Feb 2014 18:24:26 -0000 Delivered-To: apmail-giraph-dev-archive@giraph.apache.org Received: (qmail 26042 invoked by uid 500); 14 Feb 2014 18:24:26 -0000 Mailing-List: contact dev-help@giraph.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@giraph.apache.org Delivered-To: mailing list dev@giraph.apache.org Received: (qmail 25757 invoked by uid 500); 14 Feb 2014 18:24:25 -0000 Delivered-To: apmail-incubator-giraph-dev@incubator.apache.org Received: (qmail 25721 invoked by uid 99); 14 Feb 2014 18:24:23 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 14 Feb 2014 18:24:23 +0000 Date: Fri, 14 Feb 2014 18:24:23 +0000 (UTC) From: "Pavan Kumar (JIRA)" To: giraph-dev@incubator.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (GIRAPH-840) Upgrade to netty 4 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/GIRAPH-840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13901739#comment-13901739 ] Pavan Kumar commented on GIRAPH-840: ------------------------------------ I saw that tests might fail/pass due to out of memory or gc overhead based on the machine configuration. So I guess, one way is to change options to default to use unpooled heap memory, in which case I hope tests should pass. So, how do I make that change? > Upgrade to netty 4 > ------------------ > > Key: GIRAPH-840 > URL: https://issues.apache.org/jira/browse/GIRAPH-840 > Project: Giraph > Issue Type: Improvement > Reporter: Pavan Kumar > Assignee: Pavan Kumar > Fix For: 1.1.0 > > Attachments: GIRAPH-840.patch, GIRAPH-840.patch > > > Off late netty 4 has earned so much praise in the community. For example, > https://blog.twitter.com/2013/netty-4-at-twitter-reduced-gc-overhead > A switch to netty 4 enables a significant reduction in gc pressure and also huge performance gains. I started working on this last Sunday and have a patch that shows performance gains on the order of 15-25% (total execution time) for some applications at Facebook. However, I only tested it with hadoop_facebook. So there might be issues with SASL path. > I will release the patch today and want to open up a discussion if anyone is using the secure feature anymore. If not we can just deprecate it. -- This message was sent by Atlassian JIRA (v6.1.5#6160)