Return-Path: Delivered-To: apmail-cassandra-commits-archive@www.apache.org Received: (qmail 7416 invoked from network); 16 Feb 2011 23:13:47 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 16 Feb 2011 23:13:47 -0000 Received: (qmail 17812 invoked by uid 500); 16 Feb 2011 23:13:47 -0000 Delivered-To: apmail-cassandra-commits-archive@cassandra.apache.org Received: (qmail 17775 invoked by uid 500); 16 Feb 2011 23:13:46 -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 17766 invoked by uid 99); 16 Feb 2011 23:13:46 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 16 Feb 2011 23:13:46 +0000 X-ASF-Spam-Status: No, hits=-2000.0 required=5.0 tests=ALL_TRUSTED,T_RP_MATCHES_RCVD X-Spam-Check-By: apache.org Received: from [140.211.11.116] (HELO hel.zones.apache.org) (140.211.11.116) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 16 Feb 2011 23:13:45 +0000 Received: from hel.zones.apache.org (hel.zones.apache.org [140.211.11.116]) by hel.zones.apache.org (Postfix) with ESMTP id C4C1D1AA487 for ; Wed, 16 Feb 2011 23:13:25 +0000 (UTC) Date: Wed, 16 Feb 2011 23:13:25 +0000 (UTC) From: "Jonathan Ellis (JIRA)" To: commits@cassandra.apache.org Message-ID: <112779757.1294.1297898005802.JavaMail.tomcat@hel.zones.apache.org> In-Reply-To: <31357044.296951294783667007.JavaMail.jira@thor> Subject: [jira] Updated: (CASSANDRA-1969) Use BB for row cache - To Improve GC performance. 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-1969?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jonathan Ellis updated CASSANDRA-1969: -------------------------------------- Attachment: 0003-add-ICache.isCopying-method.txt 0002-implement-SerializingCache.txt 0001-introduce-ICache-InstrumentingCache-IRowCacheProvider.txt > Use BB for row cache - To Improve GC performance. > ------------------------------------------------- > > Key: CASSANDRA-1969 > URL: https://issues.apache.org/jira/browse/CASSANDRA-1969 > Project: Cassandra > Issue Type: Improvement > Components: Core > Environment: Linux and Mac > Reporter: Vijay > Assignee: Vijay > Priority: Minor > Attachments: 0001-Config-1969.txt, 0001-introduce-ICache-InstrumentingCache-IRowCacheProvider.txt, 0002-Update_existing-1965.txt, 0002-implement-SerializingCache.txt, 0002-implement-SerializingCacheV2.txt, 0003-New_Cache_Providers-1969.txt, 0003-add-ICache.isCopying-method.txt, 0004-TestCase-1969.txt, BB_Cache-1945.png, JMX-Cache-1945.png, Old_Cahce-1945.png, POC-0001-Config-1945.txt, POC-0002-Update_existing-1945.txt, POC-0003-New_Cache_Providers-1945.txt > > > Java BB.allocateDirect() will allocate native memory out of the JVM and will help reducing the GC pressure in the JVM with a large Cache. > From some of the basic tests it shows around 50% improvement than doing a normal Object cache. > In addition this patch provide the users an option to choose BB.allocateDirect or store everything in the heap. -- This message is automatically generated by JIRA. - For more information on JIRA, see: http://www.atlassian.com/software/jira