From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25482 invoked by alias); 1 Apr 2004 15:34:58 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 25407 invoked by uid 48); 1 Apr 2004 15:34:55 -0000 Date: Thu, 01 Apr 2004 15:34:00 -0000 Message-ID: <20040401153455.25406.qmail@sources.redhat.com> From: "falk at debian dot org" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20040401120607.14809.boeck@fhi-berlin.mpg.de> References: <20040401120607.14809.boeck@fhi-berlin.mpg.de> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug c++/14809] performance depends on allocation methods X-Bugzilla-Reason: CC X-SW-Source: 2004-04/txt/msg00060.txt.bz2 List-Id: ------- Additional Comments From falk at debian dot org 2004-04-01 15:34 ------- Compiler flags don't have any effect on this. I was suggesting to examine alignment and try to adjust it manually. Also check coalignment with respect to cache line index, maybe you have a one-way associative cache and get collisions. In any case, it seems unlikely that gcc can do much about this. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14809