Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!linus!philabs!cmcl2!harvard!seismo!lll-crg!lll-lcc!ucdavis!ucbvax!kim.berkeley.edu!hamachi
From: hamachi@KIM.BERKELEY.EDU (Gordon Hamachi)
Newsgroups: net.micro.mac
Subject: Another Set of Disk Benchmarks
Message-ID: <8603252311.AA07791@kim.berkeley.edu>
Date: Tue, 25-Mar-86 18:11:02 EST
Article-I.D.: kim.8603252311.AA07791
Posted: Tue Mar 25 18:11:02 1986
Date-Received: Sun, 20-Apr-86 07:12:19 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: University of California at Berkeley
Lines: 34

Here are more measurements using Brecher disk benchmark on a Mac+
with Apple's internal 800K floppy drive.  HFS and MFS volumes seem
to perform differently.

Of course, your mileage may differ...

>The benchmark consists of three parts:
>(1) 100 reads of 32KB of data from the start of the volume;
>(2) 100 writes of 32KB of data to the start of the volume;
>(3) 40 iterations of:  read one 512-byte block from an offset of 1MB, followed
>                       by read of one 512-byte block from start of volume;
>( times are in ticks, i.e., sixtieths of a second):
> 
>                             Data transfer time         Access Time
>                             ------------------
>                              Reads     Writes
> 
 Apple Internal 800K drive (1)  8719      11543               (7)
 Apple Internal 800K drive (2)  8324      11540               (7)
 Apple Internal 800K drive (3)  8032      10902               (7)
 Apple Internal 800K drive (4)  7844      10908               (7)
>Tecmar MacDrive           (5)  6017       6719               401
>DataFrame 20                   1344       2233               487
>HyperDrive                (6)  1586       1600               563
>MicahDrive 20 AT                507        508               528
 400K RAM Disk                   192        192               (7)
> 
Notes: (1) Disk cache disabled, 400K MFS Volume
       (2) 96K disk cache, 400K MFS Volume
       (3) Disk cache disabled, 800K HFS Volume
       (4) 256K disk cache, 800K HFS Volume
       (5) 10MB Fixed
       (6) original 10MB unit with old controller and version 5.1 software
       (7) Volume to small to complete this test