More Benchmarks

[daemon at houligan.UUCP]

>    We upgraded one of our Silicon Graphics IRIS 2400's to the "Turbo"
>    (68020 processor) this week, so I decided to do some benchmarking of it
>    against the older 68010 processor.
>    
>    When I tried the Dhrystone benchmark, I found that the number being
>    computed is actually iterations divided by execution time in seconds.
>    Since this time is only accurate to plus or minus one second, numbers
>    for machines like the Sun 3 (at 3500) may have errors of 7%.
>    To get better accuracy, I changed the #define LOOPS from 50000 to
>    200000 for the 2400 and to 500000 for the 2400T.
>    
>    It's apparent that the results for the Sun 3 are no fluke, and that
>    the 68020 is a pretty respectable processor.  Of course, this particular
>    benchmark may be unusually favourable to this chip.
>    
>    Below are all of the results that I could find posted, merged into
>    a single table.
>    
>    Since this isn't a program source, it doesn't really belong in net.sources.
>    I've added a Followup-to header that will redirect followups to
>    net.unix-wizards, which is at least a bit better suited to this.
>    
>     * MACHINE	PROCESSOR	OPERATING	COMPILER	DHRYSTONES/SEC.
>     * TYPE				SYSTEM				NO REG	REGS
>     * --------------------------	------------	-----------	---------------
>     * IBM PC/XT	8088-4.77Mhz	VENIX/86 2.0	cc		 297	 324
>     * Cosmos	68000-8Mhz	UniSoft		cc		 305	 322
>     * IBM PC/XT	8086-4.54Mhz	PCDOS 3.1	Lattice 2.15	 373	  -  @
>     * IBM PC/XT	8088-4.77Mhz	PCDOS 2.1	Lattice 2.15	 403	  -  @
>     * ATT PC6300	8086-8Mhz	MSDOS 2.11	b16cc 2.0	 632	 684
>     * IBM PC/AT	80286-6Mhz	PCDOS 3.0	CI-C86 2.1	 666	 684
>     * Macintosh	68000-7.7Mhz	-		MegaMax C 2.0	 661	 709
>     * ATT PC6300	8086-8Mhz	MSDOS 2.11	CI-C86 2.20M	 769	 769
>     * IBM PC/AT	80286-6Mhz	PCDOS 3.0	CI-C86 2.1	 666	 684
>     * Macintosh	68000-7.8Mhz 2M	Mac Rom		Mac C 32 bit int 694	 704
>     * IBM PC/XT	8086-9.54Mhz	PCDOS 3.1	Microsoft 3.0	 724	 781
>     * ATT 3B2/300	MAC32-?Mhz	UNIX 5.0.2	cc		 735	 806
>     * NEC PC9801F	8086-8Mhz	PCDOS 2.11	Lattice 2.15	 768	  -  @
>     * ATT PC6300	8086-8Mhz	MSDOS 2.11	CI-C86 2.20M	 769	 769
>     * IRIS 2400	68010-10 MHz	Sys5 #5		cc		 772	 829
>     * IBM PC/XT	8086-9.54Mhz	PCDOS 3.1	Microsoft 3.0	 819	 877
>     * Fast Mac	68000-7.7Mhz	-		MegaMax C 2.0	 839	 904 +
>     * IBM PC/AT	80286-6Mhz	VENIX/86 2.1	cc		 961	1000
>     * VAX 11/750	-		Unix 4.2bsd	cc		 862	 877
>     * Macintosh	68000-7.8Mhz 2M	Mac Rom		Mac C 16 bit int 877	 909
>     * IBM PC/XT	8086-9.54Mhz	PCDOS 3.1	Wizard 2.1	 877	 980
>     * VAX 11/750	-		VMS		VAX-11 C 2.0	 958	1091
>     * IBM PC/AT	80286-6Mhz	VENIX/86 2.1	cc		 961	1000
>     * IBM PC/XT	8086-9.54Mhz	PCDOS 3.1	Lattice 2.15	 980	  -  @
>     * ATT PC7300	68010-10Mhz	UNIX 5.2	cc		1041	1111
>     * IBM PC/AT	80286-6Mhz	PCDOS 3.1	Microsoft 3.0	1063	1086
>     * Sun2/120	68010-10Mhz	Sun 4.2BSD	cc		1136	1219
>     * PDP 11/70	-		UNIX 5.2	cc		1162	1250
>     * IBM PC/AT	80286-7.5Mhz	VENIX/86 2.1	cc		1190	1315 *
>     * IBM PC/AT	80286-6Mhz	PCDOS 3.1	Lattice 2.15	1250	  -  @
>     * VAX 11/780	-		UNIX 5.2	cc		1515	1562
>     * ATT 3B20	-		UNIX 5.2	cc		1515	1724
>     * uVAX-II	-		?		?		1574	1582
>     * Gould PN6005	-		UTX 1.1(4.2BSD)	cc		1675	1964
>     * HP9000-500   B series CPU    HP-UX 4.02      cc		1724      -
>     * DEC2060	KL-10		TOPS-20		cc(&)		2000	----
>     * Pyramid 90x  -		OSx 2.5		cc		3125    3125
>     * IRIS 2400T	68020-16.67MHz	Sys5 #14	cc		3105	3401
>     * SUN 3/75	68020-16.67Mhz	SUN 4.2 V3	cc		3333	3571
>     * VAX 8600	-		4.3BSD		cc		7092	7153
>     * Amdahl 580	-		UTS 5.0 Rel 1.2	cc Ver. 1.5    23076   23076
>     *
>     *   * 15Mhz crystal substituted for original 12Mhz;
>     *   @ vanilla Lattice compiler used with MicroPro standard library
>     *   + This Macintosh was upgraded from 128K to 512K in such a way that
>     *     the new 384K of memory is not slowed down by video generator accesses.
>     *   & A version 7 C compiler written at New Mexico Tech.