Return-Path: X-Original-To: apmail-hbase-issues-archive@www.apache.org Delivered-To: apmail-hbase-issues-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 48387E641 for ; Mon, 18 Feb 2013 01:10:12 +0000 (UTC) Received: (qmail 33970 invoked by uid 500); 18 Feb 2013 01:10:12 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 33933 invoked by uid 500); 18 Feb 2013 01:10:12 -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 33922 invoked by uid 99); 18 Feb 2013 01:10:12 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 18 Feb 2013 01:10:12 +0000 Date: Mon, 18 Feb 2013 01:10:11 +0000 (UTC) From: "Jean-Marc Spaggiari (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-7868) HFile performance regression between 0.92 and 0.94 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/HBASE-7868?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jean-Marc Spaggiari updated HBASE-7868: --------------------------------------- Attachment: FilteredScan.png Attached is the FilteredScan test restuls from PerformanceTest. There is only 0.94.x for now but 0.92.x is coming soon. As you can see, there is also some perfs impacts between 0.94.0 and 0.94.5 (about 1%). > HFile performance regression between 0.92 and 0.94 > -------------------------------------------------- > > Key: HBASE-7868 > URL: https://issues.apache.org/jira/browse/HBASE-7868 > Project: HBase > Issue Type: Bug > Components: io > Affects Versions: 0.94.5 > Reporter: Matteo Bertozzi > Assignee: Matteo Bertozzi > Fix For: 0.94.6 > > Attachments: FilteredScan.png, hfileperf-graphs.png > > > By HFilePerformanceEvaluation seems that 0.94 is slower then 0.92 > Looking at the profiler for the Scan path, seems that most of the time, compared to 92, is spent in the metrics dictionary lookup. [~eclark] pointed out the new per family/block metrics. > By commenting the metrics call in HFileReaderV2, the performance seems to get better, but maybe metrics is not the only problem. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira