Xref: utzoo comp.dcom.modems:2525 comp.mail.uucp:1967 Path: utzoo!attcan!uunet!rlgvax!dennis From: dennis@rlgvax.UUCP (Dennis.Bednar) Newsgroups: comp.dcom.modems,comp.mail.uucp Subject: Re: UUCP g stats Message-ID: <996@rlgvax.UUCP> Date: 26 Sep 88 16:31:59 GMT References: <183@arnold.UUCP> <1988Sep20.184054.2403@utzoo.uucp> <184@arnold.UUCP> <16257@onfcanim.UUCP> Organization: Computer Consoles Inc, Reston VA Lines: 25 In article <16257@onfcanim.UUCP>, dave@onfcanim.UUCP (Dave Martindale) writes: > >90% of 1200 baud is 108 cps. Back when most of our news traffic > >was at 1200, we saw uucp running at 109 +- 2 or so cps for hours on end, > >quite consistently, for most sites. > > Uucico, unless you've modified it, always uses 64-byte packets. > The g-protocol header is 6 bytes, so if there are always characters > being transmitted with no "dead" periods, you would expect to see > 64/70 = 0.914 of the modem bandwidth being useful data. > > 1200 bps = 120 cps; the "data" portion of this is 109.7 cps. 2 lines from our /usr/spool/uucp/SYSLOG file: sundc!root S (9/26-8:36:27) (C,11858,9) (0:26:36) <- 18617 / 171 secs [1595:0:0:7:1416:171:273:57] [tty0a,0,0,0,0] Is the 18617/117 = 108.87 cps just the 64 byte data portion, or does it include the 6-byte header on every data packet? -- FullName: Dennis Bednar UUCP: {uunet|sundc}!rlgvax!dennis USMail: CCI; 11490 Commerce Park Dr.; Reston VA 22091 Telephone: +1 703 648 3300