Subject: Re: Xwindows help (performance)
To: Gordon Ross <>
From: Julian Bean <>
List: port-sun3
Date: 10/07/1995 13:39:54
>> Date: Fri, 6 Oct 1995 20:59:33 +0100
>> From: Julian Bean <>
>[ performance issues...]
>> I got my Sun3 booting off SCSI yesterday evening, and played with it
>> extensively today.  It is S...L..O..W...
>> Like in X, for example, it takes seconds for the machine to notice a cursor
>> movement.  Typing a key causes disk access, and although when that
>> eventually stops the xterminal is quite adequate, actually running anything
>> causes another disk thrash (even 'ps').  I am guessing that this is
>> swapfile access mainly (I have 16M swap on the disk), and that it is slow
>> because of the oft-lamented SCSI driver.Is this right?  Will the
>> much-heralded new SCSI driver solve the problem and speed the machine up?
>If the machine is swapping that often, then you need more memory.
>The current (slow) SCSI driver really exacerbates this problem...
>Let me guess:  Does machine have only 4M of RAM?
>If you can't get it more RAM, you might want to consider running
>only the Xserver there (via xdm) and run almost everything else
>on some other machine. (hopefully one with lots more memory!)

'Fraid so - it is a 3/50.  No chance of any more memory on one of these....

And my other machines are a MacLCIII and a PowerMac 5200 - So they don't
really help, until NetBSD/PPC comes out, or LInux PPC, whichever is first.

The LCIII can run NetBSD/mac68k, but only via a serial console - and anyway
its internal disk is only 40M, so I couldn't even install it ;(


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