From owner-cvs-all Mon May 13 0:28:40 2002 Delivered-To: cvs-all@freebsd.org Received: from mailman.zeta.org.au (mailman.zeta.org.au [203.26.10.16]) by hub.freebsd.org (Postfix) with ESMTP id 4A37037B404; Mon, 13 May 2002 00:28:33 -0700 (PDT) Received: from bde.zeta.org.au (bde.zeta.org.au [203.2.228.102]) by mailman.zeta.org.au (8.9.3/8.8.7) with ESMTP id RAA10516; Mon, 13 May 2002 17:28:18 +1000 Date: Mon, 13 May 2002 17:30:28 +1000 (EST) From: Bruce Evans X-X-Sender: bde@gamplex.bde.org To: Bernd Walter Cc: Gerald Pfeifer , , , "David O'Brien" , John Baldwin Subject: Re: GCC bugs (was: cvs commit: src/sys/alpha/include atomic.h) In-Reply-To: <20020512162424.GM30437@cicely5.cicely.de> Message-ID: <20020513171450.W12629-100000@gamplex.bde.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Sun, 12 May 2002, Bernd Walter wrote: > On Sun, May 12, 2002 at 11:10:42AM -0500, David W. Chapman Jr. wrote: > > On Mon, May 13, 2002 at 02:08:31AM +1000, Bruce Evans wrote: > > > On Sun, 12 May 2002, Gerald Pfeifer wrote: > > > > > > > And if the bug you are seeing, *any* bug you are seeing, with GCC 3.1 > > > > or later is a regression from *any* previous version of GCC, please > > > > drop me a note and I will upgrade the priority of your PR so that it > > > > has highest chance of being fixed for GCC 3.1.1 or GCC 3.2. > > > > > > Do efficiency bugs count? makeworld is about 50% slower with gcc-3.1 > > > than with gcc-2.9x. > > > > > Is that because you can't make with -j or comparing old make > > buildworld to new make buildworld without -j ? This is because gcc-3 is about 60% larger and slower and gcc-2.9x. > I also see increased time on alpha. > About 5 hours instead of just about 3 hours as usual. The slowdown is remarkably consistent. 60% again. The space bloat may be to be little larger (65% for the i386 cc1's). The time bloat for compiling the new gcc on i386's is about 62% user time. The times for compiling the new gcc with the old and new gcc using "cd /usr/src/gnu/usr.bin/cc; make cleandir; make obj; make depend; time make" on an Athlon1400XP were: with old gcc: 103.32 real 94.22 user 7.00 sys with new gcc: 162.30 real 152.48 user 8.32 sys. > Build is done always without -j and on the same machine and OS. > Not that it's important to me - I just noticed. Running makeworld fast is important to me. Anything longer than 5-10 minutes is too long, since it is not reasonable to check every commit using makeworld if it takes longer. I was hoping to get a 20 minute makeworld on the Athlon1400XP, but my best time so far was 23 minutes 42 seconds using my version of makeworld back on Feb 24. The current version took about 2 minutes longer. Now with gcc-3, the buildworld time for -current has bloated to 37 minutes 48 seconds. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message