From owner-freebsd-hackers Wed Aug 14 15:51:48 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id PAA01476 for hackers-outgoing; Wed, 14 Aug 1996 15:51:48 -0700 (PDT) Received: from rocky.mt.sri.com (rocky.mt.sri.com [206.127.76.100]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id PAA01471; Wed, 14 Aug 1996 15:51:45 -0700 (PDT) Received: (from nate@localhost) by rocky.mt.sri.com (8.7.5/8.7.3) id QAA29332; Wed, 14 Aug 1996 16:51:31 -0600 (MDT) Date: Wed, 14 Aug 1996 16:51:31 -0600 (MDT) Message-Id: <199608142251.QAA29332@rocky.mt.sri.com> From: Nate Williams To: Bruce Evans Cc: msmith@atrad.adelaide.edu.au, nate@mt.sri.com, freebsd-hackers@freefall.freebsd.org, ponds!rivers@dg-rtp.dg.com, ponds!rivers@freefall.freebsd.org, sag.space.lockheed.com!handy@dg-rtp.dg.com Subject: Re: sio issues (silo overflows on a pentium, locked in ttywait, etc...) In-Reply-To: <199608142113.HAA04204@godzilla.zeta.org.au> References: <199608142113.HAA04204@godzilla.zeta.org.au> Sender: owner-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > Here is my throwaway lkm and auxiliarly program for testing bus hogging. .. OK, after doing s/lkm_nullcmd/nosys/, and changing the include files to be the same as the example lkm, it works. > Compile and run the hogtime utility. Start processes to exercise the > bus hog(s), e.g., `dd bs=1024k /dev/null'. Watch the > output from hogtime. For my main disk, here are typical #'s: min = 23, av = 38, max = 58 And for the second disk, which is an old 40M SCSI disk which is only used for swap. min = 23, av = 25, max = 59 Are these #'s in ms? Nate