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Date:      Thu, 04 Mar 1999 06:30:00 +0900
From:      "Daniel C. Sobral" <dcs@newsguy.com>
To:        Geoff Rehmet <geoffr@is.co.za>
Cc:        Alfred Perlstein <bright@cygnus.rush.net>, current@FreeBSD.ORG
Subject:   Re: Printing is vvveeerrryyy slow
Message-ID:  <36DDA9D8.C3A1EA65@newsguy.com>
References:  <19990303110250.12459.qmail@rucus.ru.ac.za>

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Geoff Rehmet wrote:
> 
> Alfred Perlstein writes :
> > > Printing is very slow.  I have a HP LaserJet III attached to lpt0.
> > > Printing in the pcl, text, mode is slower than I expect.  Printing in
> > > the postscipt mode is extremely slow.  A 30K postscript file has been
> > > OVER 5 minutes and is not finished!
> >
> > have you tried:
> > lptcontrol -p
> >
> > I remeber the friendlies on #freebsd suggesting this
> > to me when i had similar symptoms last year.
> It's a long long time since I was working on the lpt driver.  This
> kind of symptom was a common problem during its development.  I
> haveen't been able to really appreciate the code for the nltp
> driver, so I also can't really see if there is a problem.
> Biggest problem when I was hacking on the lpt driver was that
> interrupts tended to get lost sometimes.  I seem to recall, that
> there were some problems with slow printing that just could not
> be fixed.
> Going into polled mode (lptcotnrol -p) is probably your best bet
> at the moment.

I suspect changing the interrupt mask might also have an impact.

--
Daniel C. Sobral			(8-DCS)
dcs@newsguy.com
dcs@freebsd.org

	"FreeBSD is Yoda, Linux is Luke Skywalker."




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