From owner-freebsd-hackers Mon Jan 2 03:13:04 1995 Return-Path: hackers-owner Received: (from root@localhost) by freefall.cdrom.com (8.6.9/8.6.6) id DAA26216 for hackers-outgoing; Mon, 2 Jan 1995 03:13:04 -0800 Received: from sovcom.kiae.su (sovcom.kiae.su [144.206.136.1]) by freefall.cdrom.com (8.6.9/8.6.6) with SMTP id DAA26210 for ; Mon, 2 Jan 1995 03:12:56 -0800 Received: by sovcom.kiae.su id AA23824 (5.65.kiae-2 ); Mon, 2 Jan 1995 14:06:58 +0300 Received: (from ache@localhost) by astral.msk.su (8.6.8/8.6.6) id OAA00346; Sun, 2 Jan 1994 14:02:01 +0300 To: bde@zeta.org.au, hackers@freebsd.org, roberto@blaise.ibp.fr References: <199501020157.MAA29579@godzilla.zeta.org.au> In-Reply-To: <199501020157.MAA29579@godzilla.zeta.org.au>; from Bruce Evans at Mon, 2 Jan 1995 12:57:03 +1100 Message-Id: Organization: Olahm Ha-Yetzirah Date: Sun, 2 Jan 1994 14:02:00 +0300 X-Mailer: Mail/@ [v2.31 FreeBSD] From: "Andrew A. Chernov, Black Mage" X-Class: Fast Subject: Re: Problem with sio ... Lines: 32 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Length: 1258 Sender: hackers-owner@freebsd.org Precedence: bulk In message <199501020157.MAA29579@godzilla.zeta.org.au> Bruce Evans writes: >>Taylor have up to 4096 packet size even in standard g-protocol, >>my site use it. 'i' protocol use about 6K packet sizes. >The packet size doesn't matter a lot (just like the window size). >Only the read() size must be < TTYHOG. Taylor attempts to read MAX size first, then it utilize amount of bytes which is really readed and read rest of packet. >>What happens if we will use TTYHOG==8K to handle all possible cases? >1) It will be easier for one tty to consume must of the available >clists (leaving only the minimum guaranteed of 512 bytes for other >ttys) OR >2) we could increase the minimum to TTYHOG and waste a lot of memory. >There would be no point in using clists then. Hows about idea to change TTYHOG dinamycally for serial lines? >3) There would be a new case requiring 16K. :-) I don't see any serial protocols with block size > 8K. ZedZap protocol use 8K. -- Andrew A. Chernov : And I rest so composedly, /Now, in my bed, ache@astral.msk.su : That any beholder /Might fancy me dead - FidoNet: 2:5020/230.3 : Might start at beholding me, /Thinking me dead. RELCOM Team,FreeBSD Team : E.A.Poe From "For Annie" 1849