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Date:      Wed, 8 May 2002 11:41:56 +0300 (EEST)
From:      Dmitry Pryanishnikov <dmitry@atlantis.dp.ua>
To:        freebsd-stable@FreeBSD.ORG
Subject:   Re: buffer size
Message-ID:  <20020508113620.K26619-100000@atlantis.dp.ua>
In-Reply-To: <20020508011556.A28420@HAL9000.wox.org>

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Hello!

On Wed, 8 May 2002, David Schultz wrote:
> > > (without X). Therefore, scmouse.c computes the cut_buffer_size
> > > incorrectly. Try to copy all screen and paste then.
> >
> > More specifically, it copies no more than 1024 characters (tested
> > both on 4.2-RELEASE and 4.4-RELEASE (fill one of your virtual
> > consoles with text, then select all screen, then switch to another
> > console, start "cat >file" and paste the text, then press ^D twice -
> > you'll see that file size will be no more than 1024).
>
> Yep, it's a termios limitation, not a syscons limitation.  I suspect
> that there's a way to get syscons to stop sending data when the input
> queue is full, but it can't be that easy or someone who understands it
> would have fixed it by now.

 Aha, so-called "typeahead buffer"? Is it possible to increase it's size to,
say, 4K (to fit 132x25 screen)? If yes, what #defines one should change? What
negative effects could it give?

Sincerely, Dmitry

Atlantis ISP, System Administrator
e-mail:  dmitry@atlantis.dp.ua
nic-hdl: LYNX-RIPE


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