From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 24014 invoked by alias); 10 Jan 2010 05:54:55 -0000 Received: (qmail 23934 invoked by uid 48); 10 Jan 2010 05:54:44 -0000 Date: Sun, 10 Jan 2010 05:54:00 -0000 Message-ID: <20100110055444.23933.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug c++/42194] performance degradation with STL complex convolution operation In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "jagjeet dot nain at gmail dot com" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2010-01/txt/msg01114.txt.bz2 ------- Comment #3 from jagjeet dot nain at gmail dot com 2010-01-10 05:54 ------- Got the speedup improvement with fcx-limited-range flag. but got into another problem. This particular code when run on Sunx4100 server(with OpenSuse 10.1) shows unusual behavior. Different runs have different runtime. always no other load on server was ensured. One in three runs have double runtime of normal run. Processor is dual core AMD opteron. any help in this matter is appreciated. -- jagjeet dot nain at gmail dot com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |UNCONFIRMED Resolution|WORKSFORME | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42194