From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6279 invoked by alias); 26 Nov 2003 14:27:20 -0000 Mailing-List: contact gdb-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sources.redhat.com Received: (qmail 6272 invoked from network); 26 Nov 2003 14:27:20 -0000 Received: from unknown (HELO localhost.redhat.com) (65.49.0.121) by sources.redhat.com with SMTP; 26 Nov 2003 14:27:20 -0000 Received: from redhat.com (localhost [127.0.0.1]) by localhost.redhat.com (Postfix) with ESMTP id 7C20C2B8F; Wed, 26 Nov 2003 09:27:16 -0500 (EST) Message-ID: <3FC4B844.1080302@redhat.com> Date: Wed, 26 Nov 2003 14:27:00 -0000 From: Andrew Cagney User-Agent: Mozilla/5.0 (X11; U; NetBSD macppc; en-US; rv:1.0.2) Gecko/20030820 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Daniel Jacobowitz Cc: Will Cohen , gdb@sources.redhat.com Subject: Re: Slow handling of C++ symbol names References: <3FBBDC27.50204@redhat.com> <20031119211355.GA31069@nevyn.them.org> <3FBCE71B.7060100@redhat.com> <20031120161915.GA1282@nevyn.them.org> <3FBCF1C9.5040106@redhat.com> <20031121175832.GA30361@nevyn.them.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-SW-Source: 2003-11/txt/msg00255.txt.bz2 > But without looking at the data we've no idea how substantial any >> particular part really is. For instance, when analysing the bcache >> found that when debugging a C program every entry is 28 bytes in size! >> >> 'foo(int)' can be broken down into "foo" "(int)" the latter only being >> demanged and stored on-demand. > > > "They" tell me that the demangler did not support doing this. But it > may soon. > > Will, you may want to test a CVS snapshot from today or later. The > demangler for GNU v3 was replaced last night; the new one appears to be > about twice as efficient. FYI, Will got hold of an RPM based on 20031117 and I believe the performance numbers came back the same as 6.0 :-( That would make it post your changes but pre the new demangler. I guess we get to restart the analysis :-( Andrew