From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 24110 invoked by alias); 17 Nov 2003 19:34:34 -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 24095 invoked by uid 48); 17 Nov 2003 19:34:34 -0000 Date: Mon, 17 Nov 2003 19:34:00 -0000 Message-ID: <20031117193434.24094.qmail@sources.redhat.com> From: "dberlin at gcc dot gnu dot org" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20031006151159.12524.gerald@pfeifer.com> References: <20031006151159.12524.gerald@pfeifer.com> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug middle-end/12524] [tree-ssa] Slow-down and memory consumption increased 6x (C++ code, -O3) X-Bugzilla-Reason: CC X-SW-Source: 2003-11/txt/msg01537.txt.bz2 List-Id: ------- Additional Comments From dberlin at gcc dot gnu dot org 2003-11-17 19:34 ------- At least on my machine: for -O2, it hits a high mark of 251 meg, and generally stays around 150 meg. for -O3, it hits a high mark of well over 750 meg. The parser time blowup still applies. Either we've got a memory leak somewhere at -O3 that this tickles, or we are doing a seriously horrible job of actually releasing pages. I say this because even as the memory is still increasing at 10 or 15 meg a second, the GC thinks we have no more than 100 meg GC allocated, and it's not increasing anywhere near that fast: IE {GC 100425k -> 76048k} (we have 650 meg really allocated) ... {GC 103093k -> 77614k} (we have 750 meg really allocated) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12524