From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30394 invoked by alias); 4 Feb 2003 15:36:01 -0000 Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-prs-owner@gcc.gnu.org Received: (qmail 30375 invoked by uid 71); 4 Feb 2003 15:36:00 -0000 Date: Tue, 04 Feb 2003 15:36:00 -0000 Message-ID: <20030204153600.30373.qmail@sources.redhat.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, From: Wolfgang Bangerth Subject: Re: c/8559: [Tru64] -O3 hogs memory on Perl 5.8.0's toke.c Reply-To: Wolfgang Bangerth X-SW-Source: 2003-02/txt/msg00200.txt.bz2 List-Id: The following reply was made to PR c/8559; it has been noted by GNATS. From: Wolfgang Bangerth To: Jarkko Hietaniemi Cc: gcc-bugs@gcc.gnu.org, Subject: Re: c/8559: [Tru64] -O3 hogs memory on Perl 5.8.0's toke.c Date: Tue, 4 Feb 2003 09:26:12 -0600 (CST) > With -O3 the SIZE and RES as shown by top(1) reach 103M and 100M > (process cc1), with -O2 44M and 40M, with -O1 21M and 17M, with > -O0 it finishes so fast that top(1) doesn't even catch it. OK, this seems like excessive memory usage. For the record and those who briefly look at the report: the file hosts part of perl's parser, and -- no unexpectantly -- has a huge switch statement. W. ------------------------------------------------------------------------- Wolfgang Bangerth email: bangerth@ticam.utexas.edu www: http://www.ticam.utexas.edu/~bangerth/