From owner-freebsd-hackers Mon Aug 18 04:15:33 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id EAA14364 for hackers-outgoing; Mon, 18 Aug 1997 04:15:33 -0700 (PDT) Received: from dg-rtp.dg.com (dg-rtp.rtp.dg.com [128.222.1.2]) by hub.freebsd.org (8.8.5/8.8.5) with SMTP id EAA14346 for ; Mon, 18 Aug 1997 04:15:25 -0700 (PDT) Received: by dg-rtp.dg.com (5.4R3.10/dg-rtp-v02) id AA19899; Mon, 18 Aug 1997 07:14:52 -0400 Received: from ponds by dg-rtp.dg.com.rtp.dg.com; Mon, 18 Aug 1997 07:14 EDT Received: from lakes.dignus.com (lakes [10.0.0.3]) by ponds.dignus.com (8.8.5/8.7.3) with ESMTP id HAA10485; Mon, 18 Aug 1997 07:24:01 -0400 (EDT) Received: (from rivers@localhost) by lakes.dignus.com (8.8.5/8.6.9) id HAA04607; Mon, 18 Aug 1997 07:17:29 -0400 (EDT) Date: Mon, 18 Aug 1997 07:17:29 -0400 (EDT) From: Thomas David Rivers Message-Id: <199708181117.HAA04607@lakes.dignus.com> To: ponds!root.com!dg, ponds!freefall.cdrom.com!freebsd-hackers, ponds!lakes.dignus.com!rivers Subject: Re: "rm" speeds (2.1.7.1 vs. 2.2.1) Content-Type: text Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > > > Again, f.y.i. - this is a 486dx66 with 24meg of RAM, a typical IDE > >drive (1+gig)... The 2.2.1 kernel has NBUF defined at 128; to see > >if that's the problem... where the 2.1.7 kernel was from the boot floppy > >off of a 2.1.7 CDROM. > > That is the problem. Take out the NBUF= thing from your kernel config file > and rebuild/install the kernel. A system with 24MB of RAM will have about > 600 buffers if it is allowed to dynamically calculate the amount. > What's happening is that the directory is getting pushed out of the cache, > forcing the system to re-read much of it and the inode blocks each time. > > -DG > > David Greenman > Core-team/Principal Architect, The FreeBSD Project > I'll give it a try! Thanks for pointing it out.. I've still got a directory to try it on - the box has been working overnight (about 9+ hours now) trying to delete it... - Dave Rivers -