Pls elaborate on irqtune and hdparm? I know about the spd_hi and spd_vhi. The
others are new to me. A link or reference and I can look it up myself.
TIA
JAH
Date sent: Tue, 27 Apr 1999 23:50:00 -0400 (EDT)
From: Ed Doolittle <[EMAIL PROTECTED]>
To: Bob Hartung <[EMAIL PROTECTED]>
Copies to: Andreas Hasenack <[EMAIL PROTECTED]>,
[EMAIL PROTECTED]
Subject: Re: Modem connect speed
> On Wed, 28 Apr 1999, Bob Hartung wrote:
>
> > I seem not to be the only person having a problem figuring out
> > how fast my v.90 modem is really connecting. My chat script
> > used the "REPORT CONNECT" line and the modem is initialized
> > with AT&F1 (modem: courier v.everything with latest ROM code)
> > and it reports 24000 as connect speed everytime even though is
> > seems much faster than before the AT&F1 initialization command
> > was added.
>
> Maybe it just reports 24000 no matter what for compatibility with
> the junky sportsters that USR produces. :-) Anyone want to buy
> one off me? :-)
>
> You mean AT&F1 slows down your modem? To paraphrase the doctor I
> went to see about my RSI:
>
> Me: doctor, it hurts when I type.
> Doctor: then don't type.
>
> Also, most newer modems just report the modem-to-computer speed,
> because that's what applications want to know: how fast can I talk
> to the modem? But where that's irrelevant, and you are interested
> in the modem-to-modem speed for stats gathering purposes, you have
> to send a special command, ATW1 or something like that.
>
> > My question to anyone is: Is there any way of monitoring the
> > real modem speed in real time for use on an intermittent bases
> > to see if one is getting from the modem what one paid good cash
> > (and a lot of it for the v.everything courier) for?
>
> Someone else on this list obtained statistics at the end of a
> session by putting the appropriate chat commands in the diald
> disconnect script.
>
> Alternatively (not recommended), you may be able to put the modem
> in command mode at any time with three plus signs unless that has
> been disabled. Since pppd is talking to the modem, pppd should be
> the layer that does that. Whether it can, I don't know.
>
> Once it's in command mode, either at the end of a session (best)
> or in the middle, you can sent other AT commands to obtain
> statistics on the line speed. The specifics vary.
>
> Personally, I just rely on programs like ncftp and dselect to give
> me an idea of the data transfer speed, which depends not only on
> the modem-to-modem speed but on the speed of your ISP's
> connection, the time of day, etc.
>
> If you want to get more speed out of your serial connections,
> check out setserial spd_hi and spd_vhi, irqtune, and hdparm. I
> needed to run some of those to get full speed out of my modem.
>
> Ed
>
James A. Haliburton
On-Site Computer Services of Halifax
Suite 100, 25 Walton Drive
Halifax, Nova Scotia
Canada B3N 1X6
Cell/Pager (902)499-5250
Home/Office (902)477-8342
Alternate e-mail is [EMAIL PROTECTED]
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