From owner-freebsd-current Wed Mar 4 19:36:48 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id TAA11826 for freebsd-current-outgoing; Wed, 4 Mar 1998 19:36:48 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from dingo.cdrom.com (dingo.cdrom.com [204.216.28.145]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id TAA11815 for ; Wed, 4 Mar 1998 19:36:45 -0800 (PST) (envelope-from mike@dingo.cdrom.com) Received: from dingo.cdrom.com (localhost [127.0.0.1]) by dingo.cdrom.com (8.8.8/8.8.5) with ESMTP id TAA23822; Wed, 4 Mar 1998 19:32:28 -0800 (PST) Message-Id: <199803050332.TAA23822@dingo.cdrom.com> X-Mailer: exmh version 2.0zeta 7/24/97 To: dmaddox@scsn.net cc: Evan Champion , Matthew Thyer , Mike Smith , shimon@simon-shapiro.org, current@FreeBSD.ORG Subject: Re: silo overflows (Was Re: 3.0-RELEASE?) In-reply-to: Your message of "Wed, 04 Mar 1998 22:10:12 EST." <19980304221012.62373@scsn.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Wed, 04 Mar 1998 19:32:25 -0800 From: Mike Smith Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > Try the modifications noted in the included info. I > no longer get any kind of sio messages. > > > -- > John | Never try to teach a pig to sing, > dyson@freebsd.org | it just makes you look stupid, > jdyson@nc.com | and it irritates the pig. > > > > Index: sio.c > =================================================================== > RCS file: /local/home/ncvs/src/sys/i386/isa/sio.c,v > retrieving revision 1.194 > diff -r1.194 sio.c > 117a118 > > /* > 119a121,123 > > */ > > #define RB_I_HIGH_WATER (TTYHOG / 2) > > #define RS_IBUFSIZE (TTYHOG / 4) > > > Add this to your system conf: > > options "MSIZE=256" Interesting; why change the mbuf size? Is this a recommended change for general operation, or is 128 bytes still preferred? > options "TTYHOG=4096" This increases tty-internal buffers, but wouldn't be expected to affect interrupt latency. (There may be some carryover though.) - Were you seeing "silo overflow" messages? - Have the above changes affected your actual throughput? -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message