Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!mcsun!sunic!maxim!prc
From: prc@erbe.se (Robert Claeson)
Newsgroups: comp.unix.aix
Subject: Re: file system speed (was Risc System/6000)
Message-ID: <1153@maxim.erbe.se>
Date: 25 Feb 90 22:02:02 GMT
References: <1660@aber-cs.UUCP> <6238@orca.wv.tek.com>
Organization: ERBE DATA AB, Jarfalla, Sweden
Lines: 17

In article <6238@orca.wv.tek.com>, andrew@frip.WV.TEK.COM (Andrew Klossner) writes:
> 	Others top out at around 300KB per second."

> This doesn't sound right.  I just tried sequential disk reads from a
> large file on a Tektronix XD88 (88k-based) workstation and got
> 650KB/sec.  Even our wimpy 68020-based systems get 450KB/sec.  This
> through a slow SCSI channel, and the file system is Berkeley FFS.

I just tried reading a 10 MB large file sequentially on our Encore
Multimax. The disk is a NEC something (655 MB formatted) and it is
using the *old* I/O system from Encore (based on single-ended, async
SCSI). I got well over 900 KB/sec throughput thru the BSD FFS on a
non-striped partition under System V.

-- 
          Robert Claeson      E-mail: rclaeson@erbe.se
	  ERBE DATA AB