From owner-freebsd-questions Wed Aug 13 17:00:25 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id RAA08395 for questions-outgoing; Wed, 13 Aug 1997 17:00:25 -0700 (PDT) Received: from tok.qiv.com ([204.214.141.211]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id RAA08388 for ; Wed, 13 Aug 1997 17:00:21 -0700 (PDT) Received: (from uucp@localhost) by tok.qiv.com (8.8.6/8.8.5) with UUCP id TAA07145; Wed, 13 Aug 1997 19:00:09 -0500 (CDT) Received: from localhost (jdn@localhost) by acp.qiv.com (8.8.6/8.8.5) with SMTP id SAA01226; Wed, 13 Aug 1997 18:47:05 -0500 (CDT) X-Authentication-Warning: acp.qiv.com: jdn owned process doing -bs Date: Wed, 13 Aug 1997 18:47:05 -0500 (CDT) From: "Jay D. Nelson" To: Paul Dekkers cc: freebsd-questions@FreeBSD.ORG Subject: Re: FreeBSD is slower than Linux !? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Hmm... It might be revealing if you tried all of that with a couple of compiles and a tar of /usr running simultaneously. Final combined times may be more revealing. -- Jay On Thu, 14 Aug 1997, Paul Dekkers wrote: >Hi > >I did some speed tests and I'd like to hear some reaction about this. > > Linux FreeBSD >dd 2.61 4.95 dd if=/dev/zero of=/test bs=1024 count=5000 >gzip 12.50 11.01 gzip -9 test >gunzip 3.86 8.12 >sync 4.21 0.9 -> So it seems FreeBSD writes everything to > disk directly?! WHY? This makes FreeBSD > much slower! >unzips 4.45 41.92 decompress the sendmail distr >compil 353.79 371.87 compile sendmail (makesendmail) > >Yes, I used the same (slow) disk on my i486 >But I was really surprised discovering that FreeBSD is much slower in disk >access than Linux, so why is the filesystem called FFS (fast-filesystem?!) >;-) > >But, my main question -> I think FreeBSD is that slow because it writes >everything to disk directly, without a good cache. Why is this like it is? >This does not make FreeBSD very attractive for me to use as a fileserver >(nfs or samba) or e.g. a mail server. > >-= Paul =- > -- Jay