mikes@sir-alan.UUCP (Mike Squires) (03/09/87)
The following benchmarks are taken from several sources. The Apollo DS3000
and Sun 3/160 benchmarks are from the February, 1987, issue of Byte; the
VAX, PDP, Masscomp, Sun 2, Altos 986, Tandy 16b, IBM PC XT, and DEC Pro 350
timings are from the August 1984 issue of Byte ("Benchmarking UNIX Systems",
by David F. Hinnant; pp. 132-135, 400-409) which also contains the source
code for the programs themselves.
The Tandy 6000 and 16a timings were run at Allegheny College by Brian
Boyer, a student in computer science. The 6000 has 768K of memory and
uses a CMI 6640 40ms 32MB drive as a primary; the 16a has 1024K of
memory and has a Quantum 2080 primary. The latter is spec'd at 40ms
but clearly blows the other microcomputer drives out of the water,
especially on multi-process timings.
The 16a uses the 8MB 8" SA1000 controller to handle the 2080; a jumper
from the "Write Protect" switch to pin 5 of the 20-pin data cable is
required to disable Tandy's write protection. The CMI 6640 is driven
by the 15MB ST506 Tandy external controller; the original 15MB drive
is jumpered as drive 2 (a second CMI 6640 is drive 1). No modfications
were necessary with the 6640; this is not true with other drives, which
need pin 5 held high.
The 16a contains a number of modifications from Snapp; it is not clear
how much those affect throughput. The hard drive controller, however,
can be exchanged for another unit with no change in functionality.
"mult.sh" Timings
System OS Number of Processes
Machine UNIX 1 2 3 4 5 6
VAX 11/780 4.1BSD 4.3 5.5 7.8 9.0 11.0 13.8
VAX 11/750 4.1BSD 4.3 5.5 8.8 10.3 13.3 15.0
PDP 11/70 2.8BSD 5.0 7.8 9.3 11.8 14.3 16.7
Masscomp SIII+ 4.2 5.5 9.1 11.8 14.5 17.8
Sun 2/160 4.2BSD 3.6 6.3 8.7 11.8 14.4 18.0
Tandy 16/2080 XEN 3.1 7.7 10.5 16.8 20.0 21.4 25.6
Altos 986 XENIX 6.3 7.3 9.3 19.3 27.2 36.0
Tandy 6000
CMI 6640 XEN 3.1 6.3 8.6 10.6 18.3 31.4 50.7
Tandy 16b XEN 1.3 20.0 24.5 33.0 56.5 70.5 99.3
PDP 11/23 V7 22.3 37.3 52.3 74.8 91.0 125.0
IBM PC XT PC/IX 10.6 23.4 42.8 74.1 84.2 130.7
PDP 11/23 VENIX 14.0 32.8 failed failed failed failed
DEC Pro 350 VENIX 26.0 41.0 82.3 failed failed failed
System Function
Pipe System Call Call
Machine Version Real User Sys Real User Sys Real
Apollo DS3000 AEGIS 2.5 1.1 0.0* 5.3 5.1 0.2 0.4*
Sun 3/160 BSD4.2 0.03 0.0 1.4 2.6 0.5 2.0 0.0
VAX 11/780 4.1BSD 3.2 0.1 1.2 4.8 1.4 4.0 1.0
VAX 11/750 4.1BSD 4.6 0.2 2.1 7.0 0.9 6.2 1.7
PDP 11/70 2.8BSD 8.1 0.0 3.4 8.0 0.2 7.5 1.0
Masscomp SIII+ 5.7 0.0 2.8 6.3 0.4 5.8 0.9
Sun 2/160 4.2BSD 7.6 0.1 3.7 6.8 1.1 5.6 0.8
Tandy 6000 XEN 3.1 5.5 0.0 2.5 9.8 1.1 8.7 1.1
Altos 986 XENIX 6.0 0.1 2.8 11.0 0.8 10.3 0.4
Tandy 16 XEN 3.1 7.6 0.1 3.5 14.1 1.5 12.4 1.9
Tandy 16 XEN 1.3 8.0 0.1 3.4 15.0 1.5 12.7 1.4
PDP 11/23 V7 23.0 0.1 10.7 36.5 0.9 33.7 3.6
IBM PC XT PC/IX 16.6 0.1 7.6 39.8 2.9 35.6 4.7
PDP 11/23 VENIX 30.0 0.1 9.5 24.0 3.2 20.4 3.3
DEC Pro 350 VENIX 26.0 0.5 13.8 33.3 5.8 26.5 3.5
System Disk Disk
Sieve Write Read
Machine UNIX real user sys real real
Apollo DS3000 AEGIS 1.0 .8 0.0* 0.8 1.2
Sun 3/160 BSD4.2 0.7 0.6 0.0 1.1 1.4
VAX 11/780 4.1BSD 1.7 1.5 0.1 2.0 8.0
VAX 11/750 4.1BSD 2.4 2.7 0.1 3.0 8.0
PDP 11/70 2.8BSD 2.3 1.6 0.1 4.0 9.5
Masscomp SIII+ 2.8 2.5 0.1 1.7 NA
Sun 2/160 4.2BSD 5.1 2.8 0.4 1.8 4.9
Tandy 6000 XEN 3.1 3.2 3.1 0.0 6.3 2.2
Altos 986 XENIX 3.3 3.0 0.0 3.5 7.3
Tandy 16a XEN 3.1 5.2 5.1 0.0 4.3 2.3
Tandy 16b XEN 1.3 6.0 4.8 0.3 8.0 22.0
PDP 11/23 V7 5.8 5.3 0.1 22.0 32.7
IBM PC XT PC/IX 8.2 7.8 0.3 11.6 20.7
PDP 11/23 VENIX 5.5 5.1 0.1 8.0 33.7
DEC Pro 350 VENIX 6.3 5.1 0.1 7.7 28.0
System
Shell Loop
Machine UNIX real user sys real real sys
Apollo DS3000 AEGIS NA NA NA 1.8 1.6 0.0*
Sun 3/160 BSD4.2 NA NA NA 1.8 1.5 0.0
VAX 11/780 4.1BSD 3.3 0.3 1.3 2.6 2.5 0.1
VAX 11/750 4.1BSD 3.8 0.4 1.5 5.1 4.9 0.1
PDP 11/70 2.8BSD 4.0 0.2 1.7 7.9 7.1 0.2
Masscomp SIII+ 3.5 0.4 1.4 6.6 6.3 0.1
Sun 2/160 4.2BSD 3.5 0.3 2.0 7.4 7.0 0.1
Tandy 6000 XEN 3.1 5.8 0.3 1.9 7.9 7.8 0.0
Altos 986 XENIX 7.0 0.4 1.6 13.3 13.0 0.1
Tandy 16a XEN 3.1 6.8 0.5 2.8 13.4 13.2 0.1
Tandy 16b XEN 1.3 18.0 0.4 2.6 14.0 12.5 0.5
PDP 11/23 V7 20.4 0.8 8.5 27.4 25.9 0.3
IBM PC XT PC/IX 8.5 1.1 3.2 32.2 31.5 0.3
PDP 11/23 VENIX 12.0 0.7 4.8 26.0 25.2 0.1
DEC Pro 350 VENIX 27.0 0.8 4.7 26.7 25.3 0.1
(* - UNIX runs as a task under AEGIS)
Michael L. Squires Office: 814-724-3360
Department of Political Science Home: 814-337-5528
Allegheny College
Meadville, PA 16335
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