Return-Path: Delivered-To: apmail-lucene-java-user-archive@www.apache.org Received: (qmail 87660 invoked from network); 18 Feb 2009 10:36:56 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 18 Feb 2009 10:36:56 -0000 Received: (qmail 51972 invoked by uid 500); 18 Feb 2009 10:36:47 -0000 Delivered-To: apmail-lucene-java-user-archive@lucene.apache.org Received: (qmail 51942 invoked by uid 500); 18 Feb 2009 10:36:47 -0000 Mailing-List: contact java-user-help@lucene.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: java-user@lucene.apache.org Delivered-To: mailing list java-user@lucene.apache.org Received: (qmail 51931 invoked by uid 99); 18 Feb 2009 10:36:47 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 18 Feb 2009 02:36:47 -0800 X-ASF-Spam-Status: No, hits=-0.0 required=10.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: local policy) Received: from [124.153.73.149] (HELO mail.mapmyindia.com) (124.153.73.149) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 18 Feb 2009 10:36:37 +0000 Received: (qmail 23261 invoked by uid 510); 18 Feb 2009 16:06:12 +0530 Received: from 59.178.207.251 by mail.mapmyindia.com (envelope-from , uid 502) with qmail-scanner-1.25 (uvscan: v5.1.00/v5440. Clear:RC:0(59.178.207.251):. Processed in 5.521352 secs); 18 Feb 2009 10:36:12 -0000 Received: from triband-del-59.178.207.251.bol.net.in (HELO ?127.0.0.1?) (varun@mapmyindia.com@59.178.207.251) by mail.mapmyindia.com with SMTP; 18 Feb 2009 16:06:06 +0530 Message-ID: <499BE497.2060103@mapmyindia.com> Date: Wed, 18 Feb 2009 16:06:07 +0530 From: Varun Dhussa Organization: CE InfoSystems (P) Ltd User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: java-user@lucene.apache.org Subject: Lucene search performance on Sun UltraSparc T2 (T5120) servers Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Antivirus: avast! (VPS 090217-0, 02/17/2009), Outbound message X-Antivirus-Status: Clean X-Virus-Checked: Checked by ClamAV on apache.org Hi, I have had a bad experience when migrating my application from Intel Xeon based servers to Sun UltraSparc T2 T5120 servers. Lucene fuzzy search just does not perform. A search which took approximately 500 ms takes more than 6 seconds to execute. The index has about 100,000,000 records. So, I tried to split it into 10 indices and used the ParallelSearcher on it, but still got similar results. I am guessing that this is because the distance implementation used by Lucene requires higher clock speed and can't be parallelized much. Please advice -- Varun Dhussa Product Architect CE InfoSystems (P) Ltd http://www.mapmyindia.com --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org For additional commands, e-mail: java-user-help@lucene.apache.org