From owner-freebsd-current Tue Apr 2 00:16:49 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id AAA19562 for current-outgoing; Tue, 2 Apr 1996 00:16:49 -0800 (PST) Received: from tfs.com (tfs.com [140.145.250.1]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id AAA19553 for ; Tue, 2 Apr 1996 00:16:46 -0800 (PST) Received: from critter.tfs.com by tfs.com (smail3.1.28.1) with SMTP id m0u40GH-0003xPC; Mon, 1 Apr 96 23:12 PST Received: from localhost.tfs.com (localhost.tfs.com [127.0.0.1]) by critter.tfs.com (8.6.12/8.6.12) with SMTP id FAA01217; Tue, 2 Apr 1996 05:56:24 GMT X-Authentication-Warning: critter.tfs.com: Host localhost.tfs.com didn't use HELO protocol To: Bruce Evans cc: freebsd-current@freefall.freebsd.org, kuku@gilberto.physik.rwth-aachen.de Subject: Re: calcru: negative time: In-reply-to: Your message of "Tue, 02 Apr 1996 04:24:37 +1000." <199604011824.EAA32194@godzilla.zeta.org.au> Date: Tue, 02 Apr 1996 05:56:21 +0000 Message-ID: <1215.828424581@critter.tfs.com> From: Poul-Henning Kamp Sender: owner-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > >> >[deleted] > >> >calcru: negative time: -11929 usec > >> ... > >> This is caused by hardclock() interrupt latency. The problem is > >> ... > > >My i386 has really high numbers here. > > Highly negative numbers? They can't go more than 10000 usec negative > on i386's due to the causes that I know about. Generally in the ~5000 range (+/-3000) and occasionally >>10000. > >Could this be a spl > Probably a splhigh botch. It seems to be connected to fork/exec on my mach. How about ESDI disks, could they monopolize the cpu on slow systems ? -- Poul-Henning Kamp | phk@FreeBSD.ORG FreeBSD Core-team. http://www.freebsd.org/~phk | phk@login.dknet.dk Private mailbox. whois: [PHK] | phk@ref.tfs.com TRW Financial Systems, Inc. Future will arrive by its own means, progress not so.