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From: bob@obiwan.uucp (Bob Willcox)
Newsgroups: comp.unix.bsd
Subject: Re: 386BSD QIC-02 Driver with Wangtek 5150PK is sloooooow
Message-ID: <Bt9At0.GEn@obiwan.uucp>
Date: 20 Aug 92 00:31:47 GMT
References: <1992Aug17.191318.8853@hotb.sub.org> <1992Aug19.051745.16119@zip.eecs.umich.edu>
Organization: Bob's Place, Austin TX
Lines: 26
In article <1992Aug19.051745.16119@zip.eecs.umich.edu> dmuntz@dip.eecs.umich.edu (Daniel A Muntz) writes:
>In article <1992Aug17.191318.8853@hotb.sub.org> thomas@hotb.sub.org (Thomas Brettinger) writes:
>>Hi.
>>I got 386BSD running on a noname sx, 4 Meg Ram, a 100M Conner Disk, WD
>>Elite and a Wangtek 5150PK QIC-02 Streamer.
>>
>>The system runs fine, but the tape driver is incredibly slow. I looked
>>at the source and saw, that it's using 512 byte blocks... Oh well.
>
>The problem isn't the 512-byte blocks, per se, but that the controller doesn't
>receive data quickly enough to allow the drive to stream properly.
> [ ...bunch of stuff about lost interrupts deleted... ]
>
>I'm sporadically working on these things and would appreciate any feedback.
>
> -Dan
I am running a Wangtek 5150 EQ on my system (386/40) without any apparent
streaming problems. I haven't got it to stream continuously, but it
will stream for whatever size buffer I am reading into or writing from.
I have been using afio with a 2mb buffer and been quite satisfied.
--
Bob Willcox ...!{rutgers|ames}!cs.utexas.edu!uudell!rancor!obiwan!bob
Phone: 512 258-4224 (home)
512 838-3914 (work)