From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3848 invoked by alias); 24 May 2012 21:28:59 -0000 Received: (qmail 3839 invoked by uid 22791); 24 May 2012 21:28:58 -0000 X-SWARE-Spam-Status: No, hits=-5.5 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,KHOP_RCVD_TRUST,KHOP_THREADED,RCVD_IN_DNSWL_LOW,RCVD_IN_HOSTKARMA_YE,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mail-vb0-f41.google.com (HELO mail-vb0-f41.google.com) (209.85.212.41) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 24 May 2012 21:28:44 +0000 Received: by vbbey12 with SMTP id ey12so260592vbb.0 for ; Thu, 24 May 2012 14:28:43 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding:x-system-of-record :x-gm-message-state; bh=uZvAAjECIwNYmmr+SK1YknnB8G623xbVTqoLu1Thops=; b=eY2z4qUnex65CyQivwtnBJofBXgxp971HaU6dj+l5wHh+aFvCxZRAK2aCi+ee0TYad Dig9zcWFKzlEKlXqiHIADgJgkxN9Pyj8rvdehTKSTVQgElB9IS0Rw0t2vmUNnSJAsqe1 cMseI0cUf2PJ/kh61ZePFJLLL7ABhQsMDQyh7oYEe5VX89hWTcr1SVxc+gUeWeNMJouh 2RPKpX2XbexkCyahBKA7uLYpdPrhQwfVX8tnx2c0X8oETNAHB5ZVN2ukjbedmFhK/HQX SYfFczuL8g8q1zVCkNj0FhzRSFOteI5Ld5Haok8VyG+26CGpCriFcW/oYq9PAo9yiBuw hviA== Received: by 10.52.20.35 with SMTP id k3mr911578vde.44.1337894923893; Thu, 24 May 2012 14:28:43 -0700 (PDT) MIME-Version: 1.0 Received: by 10.52.20.35 with SMTP id k3mr911570vde.44.1337894923774; Thu, 24 May 2012 14:28:43 -0700 (PDT) Received: by 10.52.172.166 with HTTP; Thu, 24 May 2012 14:28:43 -0700 (PDT) In-Reply-To: <20120524175852.D38381E139C@ruffy2.mtv.corp.google.com> References: <20120524175852.D38381E139C@ruffy2.mtv.corp.google.com> Date: Thu, 24 May 2012 21:28:00 -0000 Message-ID: Subject: Re: [RFA] massively speed up "info var foo" on large programs From: Doug Evans To: gdb-patches@sourceware.org Cc: ratmice@gmail.com Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-System-Of-Record: true X-Gm-Message-State: ALoCoQnQ3ElEAAU1qmwShYGQw3Ee0E/Sd4MGWZ4itpPfG05bdub0/YvoTlP+pzAAAyzeWtxhIlBYefr/swPxZYMmC09hV3jO7apLiCDccxH70Nu+WWHK6fKyIuxkJZP2yVxkU+hdg+VJem45wgU9ul2X2xD6AjMaqQ== X-IsSubscribed: yes Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org X-SW-Source: 2012-05/txt/msg00949.txt.bz2 On Thu, May 24, 2012 at 10:58 AM, Doug Evans wrote: > Hi. > > I'm not entirely sure this patch is correct, but it feels correct (*1), > and is a massive win. > "info var Task" in one large program goes from 350 seconds to 28 seconds. > > [...] > > 2012-05-23 =A0Doug Evans =A0 > > =A0 =A0 =A0 =A0* symtab.c (lookup_msymbol_in_objfile): New function. > =A0 =A0 =A0 =A0(search_symbols): Call it. Hmmm. One thing that occurs to me is separate debug objfiles. lookup_msymbol_in_objfile should probably search them.