From owner-freebsd-current Mon Apr 30 1:21: 5 2001 Delivered-To: freebsd-current@freebsd.org Received: from boco.fee.vutbr.cz (boco.fee.vutbr.cz [147.229.9.11]) by hub.freebsd.org (Postfix) with ESMTP id BCD2937B423 for ; Mon, 30 Apr 2001 01:21:01 -0700 (PDT) (envelope-from cejkar@dcse.fee.vutbr.cz) Received: from kazi.dcse.fee.vutbr.cz (kazi.dcse.fee.vutbr.cz [147.229.8.12]) by boco.fee.vutbr.cz (8.11.3/8.11.3) with ESMTP id f3U8Ktc16019 (using TLSv1/SSLv3 with cipher EDH-RSA-DES-CBC3-SHA (168 bits) verified OK); Mon, 30 Apr 2001 10:20:55 +0200 (CEST) Received: (from cejkar@localhost) by kazi.dcse.fee.vutbr.cz (8.11.2/8.11.2) id f3U8KsJ07475; Mon, 30 Apr 2001 10:20:54 +0200 (CEST) Date: Mon, 30 Apr 2001 10:20:54 +0200 From: Cejka Rudolf To: Bruce Evans Cc: current@FreeBSD.ORG Subject: Re: Experiences with new dir allocation on FFS? Message-ID: <20010430102054.A4474@dcse.fee.vutbr.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from bde@zeta.org.au on Sat, Apr 28, 2001 at 02:34:12PM +1000 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Bruce Evans wrote (2001/04/28): > This is probably caused by write caching now being off by default > in the ata driver, possibly amplified by not using soft updates. > Without the new dir allocation, -current would be even slower :(. Yes, thanks. I really forgot on this change. My rough results are now: Old s./wc enabled New s./wc enabled New s./wc disabled tar xvfz 8 minutes 4 minutes 14 minutes rm -r 5 minutes 1 minute 2 minutes There is another reason for tar "slowness": Current version of tar seems to be faster than our old system tar: 3m23 against 3m44 for tar xvfz with wc enabled. I think there are even bigger differences with tar cvfz and tar xvfz with wc disabled. -- Rudolf Cejka (cejkar@dcse.fee.vutbr.cz; http://www.fee.vutbr.cz/~cejkar) Brno University of Technology, Faculty of El. Engineering and Comp. Science Bozetechova 2, 612 66 Brno, Czech Republic To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message