From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 8932 invoked by alias); 20 Feb 2004 16:58:47 -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 8923 invoked from network); 20 Feb 2004 16:58:46 -0000 Received: from unknown (HELO nevyn.them.org) (66.93.172.17) by sources.redhat.com with SMTP; 20 Feb 2004 16:58:46 -0000 Received: from drow by nevyn.them.org with local (Exim 4.30 #1 (Debian)) id 1AuDzB-00036g-Vz for ; Fri, 20 Feb 2004 11:58:45 -0500 Date: Fri, 20 Feb 2004 16:58:00 -0000 From: Daniel Jacobowitz To: gdb@sources.redhat.com Subject: Re: Huge slowdown since 6.0 Message-ID: <20040220165845.GA11920@nevyn.them.org> Mail-Followup-To: gdb@sources.redhat.com References: <20040218210927.GA16641@nevyn.them.org> <20040220050905.GA15209@nevyn.them.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.1i X-SW-Source: 2004-02/txt/msg00280.txt.bz2 On Fri, Feb 20, 2004 at 08:52:35AM -0800, David Carlton wrote: > There's one other interesting point here - where exactly is the > slowdown coming from? After all, we generate the same number of > searches, and lookup_symbol can potentially look at all the static > psymbols just like it could look at all the global psymbols. Not only > that, but looking at the static psymbols is vastly slower than looking > at the global psymbols (for no good reason, as far as I know, but > that's a separate issue; lookup_partial_symbol has issues). > > But I suppose the point is that looking at all the static psymbols is > only a very last resort in lookup_symbol, so (as long as the symbol > you're looking for actually exists) it wouldn't get called very often. > > Or is there something else that I'm missing? I'm not even getting to the point where we do searches. See sort_pst_symbols for the issue. -- Daniel Jacobowitz MontaVista Software Debian GNU/Linux Developer