Return-Path: Delivered-To: apmail-db-derby-dev-archive@www.apache.org Received: (qmail 51417 invoked from network); 16 Dec 2007 19:39:46 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 16 Dec 2007 19:39:46 -0000 Received: (qmail 59345 invoked by uid 500); 16 Dec 2007 19:39:35 -0000 Delivered-To: apmail-db-derby-dev-archive@db.apache.org Received: (qmail 59315 invoked by uid 500); 16 Dec 2007 19:39:35 -0000 Mailing-List: contact derby-dev-help@db.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: Delivered-To: mailing list derby-dev@db.apache.org Received: (qmail 59306 invoked by uid 99); 16 Dec 2007 19:39:35 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 16 Dec 2007 11:39:35 -0800 X-ASF-Spam-Status: No, hits=1.2 required=10.0 tests=SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (athena.apache.org: local policy) Received: from [63.82.107.6] (HELO red.amberpoint.com) (63.82.107.6) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 16 Dec 2007 19:39:14 +0000 Received: from [127.0.0.1] (bp-laptop.edgility.com [10.10.12.49]) by red.amberpoint.com (8.14.0/8.12.11) with ESMTP id lBGJdF6G025498 for ; Sun, 16 Dec 2007 11:39:15 -0800 (PST) Message-ID: <47657EE3.1040104@amberpoint.com> Date: Sun, 16 Dec 2007 11:39:15 -0800 From: Bryan Pendleton User-Agent: Thunderbird 2.0.0.9 (Windows/20071031) MIME-Version: 1.0 To: derby-dev@db.apache.org Subject: Re: [jira] Updated: (DERBY-3280) Poor distribution of hash values from RecordId.hashCode() References: <25521939.1197832483318.JavaMail.jira@brutus> In-Reply-To: <25521939.1197832483318.JavaMail.jira@brutus> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org > Without the patch, the profiler told me that about 50% of the CPU was spent in RecordId.equals(). Wow! This sounds like a nice change with the potential for solid improvement. Good work. bryan