Re: ISDN massive packet drops while DVD burn/verify

From: Stephan von Krawczynski <skraw@ithnet.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: kai@tp1.ruhr-uni-bochum.de, linux-kernel@vger.kernel.org
Subject: Re: ISDN massive packet drops while DVD burn/verify
Date: Sun, 20 Apr 2003 18:18:12 +0200	[thread overview]
Message-ID: <20030420181812.44844175.skraw@ithnet.com> (raw)
In-Reply-To: <1050789691.3955.17.camel@dhcp22.swansea.linux.org.uk>

On 19 Apr 2003 23:01:32 +0100
Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:

> On Sad, 2003-04-19 at 18:38, Stephan von Krawczynski wrote:
> > I don't buy that explanation. Reason is simple: during this all network
> > connections work flawlessly, and they do have quite a lot of interrupts
> > compared to ISDN. ISDN is so slow and has so few interrupts that it is
> > quite unlikely in a SMP-beyond-GHz-limit box that you loose some. The
> > ancient hardware days are long gone ...
> 
> I'd suggest buying his explanation, because he's right. You are
> confusing quantity and latency.

Sorry Alan, "been there, done that"
I made ISDN work on just about anything that you would call an OS on sometimes
quite ancient hardware (compared to nowadays), and I really cannot imagine that
the combined (though sometimes confusing) efforts of you, Andre, Pavel, name-one
on IDE made a dual 1.4 GHz PIII slower (responding) than a M68k 7,14 MHz with a
polling IDE interface - which happens to be the slowest thing I ever did ISDN
programming on _flawlessly_.

Regards,
Stephan