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- Xref: sparky comp.unix.sysv386:16355 comp.unix.sys5.r4:480
- Path: sparky!uunet!europa.asd.contel.com!darwin.sura.net!spool.mu.edu!hri.com!noc.near.net!mv!jeck!coffler
- From: coffler@jeck.amherst.nh.us (Jeff Coffler)
- Newsgroups: comp.unix.sysv386,comp.unix.sys5.r4
- Subject: Re: Performance of UUCP under DELL Unix (SVR4 issue 2.2)
- Message-ID: <1992Nov10.025620.27192@jeck.amherst.nh.us>
- Date: 10 Nov 92 02:56:20 GMT
- References: <1992Nov8.235526.1476@jeck.amherst.nh.us> <BxGr8A.I9v@gator.rn.com>
- Sender: coffler@jeck.amherst.nh.us (Jeff Coffler)
- Reply-To: coffler@jeck.amherst.nh.us (Jeff Coffler)
- Organization: Private system
- Lines: 31
-
-
- In article <BxGr8A.I9v@gator.rn.com>, larry@gator.rn.com (Larry Snyder) writes:
-
- |>coffler@jeck.amherst.nh.us (Jeff Coffler) writes:
- |>
- |>>is, I have CTS/RTS always on solid. One would think that I wasn't feeding data
- |>>to the modem fast enough, but this isn't the case (the Worldblazer serial rate
- |>>is 115k bps, fed by a Digiboard EPC/X). Given this, it seems that the modem is
- |>>most likely not transferring at it's maximum capacity ...
- |>
- |>Why kinds of thoughput are you getting? I assume you have ditty
- |>setup to enable ctrflow and rtsflow on the ports?
-
- ditty is setup to enable cts/rts flow control on the ports (actually, that's
- the default for the modem-style ports anyway). I'm confident that the modems
- aren't using CTS/RTS flow simply because they don't need to.
-
- ---
-
- I did receive MAIL on this, and some folks said that they see this behavior as
- well. The consensus seems to be that the Telebit Worldblazer won't use CTS/RTS
- for flow control, but will instead limit the acknoledgement UUCP messages to
- keep the host from transmitting too much data to the modem (if the modem doesn't
- send the ACK, then the host won't transmit another UUCP-g packet).
-
- My throughput when talking to another WB seems to be about 1850cps or so. Is
- this typical for other UUCP-g sites talking WB to WB?
-
- Thanks,
-
- -- Jeff
- --
- Jeff Coffler UUCP: ...{decvax,mv}!jeck!coffler
- Southern New Hampshire Internet: coffler@jeck.amherst.nh.us
-
- {Disclaimer: What I say is my personal opinion}
-