Date: Sun, 29 Mar 1998 16:37:59 +0930 From: Greg Lehey <grog@lemis.com> To: John Utz <utz@serv.net> Cc: questions@FreeBSD.ORG Subject: Re: why is ghostscript so slow now? did i miss a setting? Message-ID: <19980329163759.20841@freebie.lemis.com> In-Reply-To: <Pine.BSI.3.95.980328224139.18280A-100000@itchy.serv.net>; from John Utz on Sat, Mar 28, 1998 at 11:01:39PM -0800 References: <19980329141243.48759@freebie.lemis.com> <Pine.BSI.3.95.980328224139.18280A-100000@itchy.serv.net>
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On Sat, 28 March 1998 at 23:01:39 -0800, John Utz wrote: >> On Sat, 28 March 1998 at 13:13:37 -0800, John Utz wrote: >>> hi; >>> >>> vital stats: >>> >>> 2.2.6-980323-BETA >>> >>> fake pentium amd p5 kr-100 32 meg o ram >>> >>> canon bj200ex printer >>> >>> gs 2.6.2 or gs 5.1.0 >>> >>> this setup was perfectly tolerable with ghostscript and apsfilter in 2.2.5 >>> >>> now it takes an hour to print two pages! >>> >>> it seems like gs has become de-niced down to turtle speed, or something >>> >>> >>> the print speed is normal if i dont use ghostscript or apsfilter. and if i >>> do all the apsfilter stuff by hand it is still insanely slow, so the >>> problem appears to be a gs/lpd hose up? >> >> What are you printing? I don't know the bj200ex (bubble jet?), but if >> you're printing complicated pictures, it could be that the printer is >> taking that long to accept all the data you're sending it. That's >> particularly true for LaserJet 1 emulation. >> >> A couple of things to try: >> >> 1. Convert to memory (i.e. just make an image for the printer) and >> see how long that takes. > > > yah, i forgot to mention that in my first mail....i had actually > converted the file 'by hand' via invoking ghostscript to just convert the > file. that happens lickety split. actually getting the file printed is > what takes so long. OK. Printing the file has nothing to do with ghostscript. I think this has just shown that ghostscript is not the culprit. >> 2. Convert a simple printed text. > > oh, epic bummer. :-( this *is* a text file. a 3 line .rhosts file. On two pages? > and it takes an hour to print. lpd sends the head across once every 8 > minutes or so on a single pass. this is pretty time consuming. > > this hardware setup has run with gs for a couple years now, this is sort > of surprising. That's a good piece of information. I suspect you might be running into problems with interrupts. If the line printer driver doesn't get any interrupts, it transfers about one character per second. That sounds like what's happening to you. Before you go chasing the wrong problem, try this: # lptcontrol -p If you're not using /dev/lpt0, use the -u option to describe which unit *number* (1 or 2) you are using. See the man page for further details. This will turn the printer port on in polled mode. The result should be much faster if the interrupts are the problem. Greg To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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