Xref: utzoo comp.sys.mac:40080 comp.protocols.appletalk:2545
Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!ut-emx!xdaa374
From: xdaa374@ut-emx.UUCP (William T. Douglass)
Newsgroups: comp.sys.mac,comp.protocols.appletalk
Subject: Re: Increasing RAM on AppleShare Server
Keywords: RAM AppleShare
Message-ID: <19535@ut-emx.UUCP>
Date: 13 Oct 89 12:19:52 GMT
References: <349@sdcc19.ucsd.EDU> <1989Oct11.022443.25922@paris.ics.uci.edu> <33912@beta.lanl.gov> <1989Oct12.114440.27973@paris.ics.uci.edu>
Reply-To: xdaa374@emx.UUCP (Bill Douglass)
Distribution: usa
Organization: UTexas Computation Center, Austin, Texas
Lines: 32

In article <1989Oct12.114440.27973> truesdel@ics.uci.edu writes:
>
>Lee Ankeny mentions testing LocalTalk and EtherTalk AppleShare
>implementations and coming up with negligible performance differences.

We have an Ethernet set-up, based primarily on Mac II & SE/30 computers.
The servers are a II & an SE/30, and most workstations are IIs.  We have
realized a dramatic speed-up in throughput by switching to Ethernet.  I
consider the cost & set-up effort to be worthwhile.

As for the reports of little or no speed-up from LocalTalk to EtherTalk, all
I can say is that you CAN realize substantial improvements in file & data
transfers by upgrading.  File transfers show quadrupled throughput (from 16k/sec
to about 65-70 K/sec.) with a II workstation, doubled speed for plain SEs.


>I still think something's fishy with the EtherTalk setups. Unless we are
>looking at the software being the bottleneck. And, at Ethernet speeds,
>the performance of a Plus, such as Lee tested, would be quite noticeable.

I don't quite know how a Plus was hooked up to Ethernet, but the SCSI-based
connections reportedly suffer from very poor performance.  That could account
for the minor speed improvements being touted.

Again, Mac II level & up workstations doing work w/ high net traffic will
show dramatic improvements switching from LocalTalk to Ethernet.

-- 
Bill Douglass, TCADA

"I dreamed I was to take a test,
 in a Dairy Queen, on another planet."      L. Anderson