From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 31899 invoked by alias); 6 Sep 2005 07:32:42 -0000 Mailing-List: contact glibc-bugs-regex-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Post: List-Help: , Sender: glibc-bugs-regex-owner@sources.redhat.com Received: (qmail 31756 invoked by uid 48); 6 Sep 2005 07:32:21 -0000 Date: Tue, 06 Sep 2005 07:32:00 -0000 From: "eggert at gnu dot org" To: glibc-bugs-regex@sources.redhat.com Message-ID: <20050906073220.1302.eggert@gnu.org> Reply-To: sourceware-bugzilla@sources.redhat.com Subject: [Bug regex/1302] New: improve regex bitset performance (don't assume 32 bits) X-Bugzilla-Reason: CC X-SW-Source: 2005-09/txt/msg00024.txt.bz2 List-Id: The regex bitset code currently uses an array of unsigned int words to represent a bitset, and assumes these words are exactly 32 bits wide. On modern 64-bit hosts, using a 64-bit word would require approximately half the instructions for the bitset-related code. Also, it's better not to assume 32-bits everywhere. I'll attach a patch. -- Summary: improve regex bitset performance (don't assume 32 bits) Product: glibc Version: 2.3.5 Status: NEW Severity: normal Priority: P2 Component: regex AssignedTo: gotom at debian dot or dot jp ReportedBy: eggert at gnu dot org CC: glibc-bugs-regex at sources dot redhat dot com,glibc- bugs at sources dot redhat dot com BugsThisDependsOn: 1278,1285 http://sources.redhat.com/bugzilla/show_bug.cgi?id=1302 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.