📄 dhry.c
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/* EVERBODY: Please read "APOLOGY" below. -rick 01/06/86
* See introduction in net.arch, or net.micro
*
* "DHRYSTONE" Benchmark Program
*
* Version: C/1.1, 12/01/84
*
* Date: PROGRAM updated 01/06/86, RESULTS updated 03/31/86
*
* Author: Reinhold P. Weicker, CACM Vol 27, No 10, 10/84 pg. 1013
* Translated from ADA by Rick Richardson
* Every method to preserve ADA-likeness has been used,
* at the expense of C-ness.
*
* Compile: cc -O dry.c -o drynr : No registers
* cc -O -DREG=register dry.c -o dryr : Registers
*
* Defines: Defines are provided for old C compiler's
* which don't have enums, and can't assign structures.
* The time(2) function is library dependant; Most
* return the time in seconds, but beware of some, like
* Aztec C, which return other units.
* The LOOPS define is initially set for 50000 loops.
* If you have a machine with large integers and is
* very fast, please change this number to 500000 to
* get better accuracy. Please select the way to
* measure the execution time using the TIME define.
* For single user machines, time(2) is adequate. For
* multi-user machines where you cannot get single-user
* access, use the times(2) function. If you have
* neither, use a stopwatch in the dead of night.
* Use a "printf" at the point marked "start timer"
* to begin your timings. DO NOT use the UNIX "time(1)"
* command, as this will measure the total time to
* run this program, which will (erroneously) include
* the time to malloc(3) storage and to compute the
* time it takes to do nothing.
*
* Run: drynr; dryr
*
* Results: If you get any new machine/OS results, please send to:
*
* ihnp4!castor!pcrat!rick
*
* and thanks to all that do. Space prevents listing
* the names of those who have provided some of these
* results. I'll be forwarding these results to
* Rheinhold Weicker.
*
* Note: I order the list in increasing performance of the
* "with registers" benchmark. If the compiler doesn't
* provide register variables, then the benchmark
* is the same for both REG and NOREG.
*
* PLEASE: Send complete information about the machine type,
* clock speed, OS and C manufacturer/version. If
* the machine is modified, tell me what was done.
* On UNIX, execute uname -a and cc -V to get this info.
*
* 80x8x NOTE: 80x8x benchers: please try to do all memory models
* for a particular compiler.
*
* APOLOGY (1/30/86):
* Well, I goofed things up! As pointed out by Haakon Bugge,
* the line of code marked "GOOF" below was missing from the
* Dhrystone distribution for the last several months. It
* *WAS* in a backup copy I made last winter, so no doubt it
* was victimized by sleepy fingers operating vi!
*
* The effect of the line missing is that the reported benchmarks
* are 15% too fast (at least on a 80286). Now, this creates
* a dilema - do I throw out ALL the data so far collected
* and use only results from this (corrected) version, or
* do I just keep collecting data for the old version?
*
* Since the data collected so far *is* valid as long as it
* is compared with like data, I have decided to keep
* TWO lists- one for the old benchmark, and one for the
* new. This also gives me an opportunity to correct one
* other error I made in the instructions for this benchmark.
* My experience with C compilers has been mostly with
* UNIX 'pcc' derived compilers, where the 'optimizer' simply
* fixes sloppy code generation (peephole optimization).
* But today, there exist C compiler optimizers that will actually
* perform optimization in the Computer Science sense of the word,
* by removing, for example, assignments to a variable whose
* value is never used. Dhrystone, unfortunately, provides
* lots of opportunities for this sort of optimization.
*
* I request that benchmarkers re-run this new, corrected
* version of Dhrystone, turning off or bypassing optimizers
* which perform more than peephole optimization. Please
* indicate the version of Dhrystone used when reporting the
* results to me.
*
* RESULTS BEGIN HERE
*
*----------------DHRYSTONE VERSION 1.1 RESULTS BEGIN--------------------------
*
* MACHINE MICROPROCESSOR OPERATING COMPILER DHRYSTONES/SEC.
* TYPE SYSTEM NO REG REGS
* -------------------------- ------------ ----------- ---------------
* Apple IIe 65C02-1.02Mhz DOS 3.3 Aztec CII v1.05i 37 37
* - Z80-2.5Mhz CPM-80 v2.2 Aztec CII v1.05g 91 91
* - 8086-8Mhz RMX86 V6 Intel C-86 V2.0 197 203LM??
* IBM PC/XT 8088-4.77Mhz COHERENT 2.3.43 Mark Williams 259 275
* - 8086-8Mhz RMX86 V6 Intel C-86 V2.0 287 304 ??
* Fortune 32:16 68000-6Mhz V7+sys3+4.1BSD cc 360 346
* PDP-11/34A w/FP-11C UNIX V7m cc 406 449
* Macintosh512 68000-7.7Mhz Mac ROM O/S DeSmet(C ware) 625 625
* VAX-11/750 w/FPA UNIX 4.2BSD cc 831 852
* DataMedia 932 68000-10Mhz UNIX sysV cc 837 888
* Plexus P35 68000-12.5Mhz UNIX sysIII cc 835 894
* ATT PC7300 68010-10Mhz UNIX 5.0.3 cc 973 1034
* Compaq II 80286-8Mhz MSDOS 3.1 MS C 3.0 1086 1140 LM
* IBM PC/AT 80286-7.5Mhz Venix/286 SVR2 cc 1159 1254 *15
* Compaq II 80286-8Mhz MSDOS 3.1 MS C 3.0 1190 1282 MM
* MicroVAX II - Mach/4.3 cc 1361 1385
* DEC uVAX II - Ultrix-32m v1.1 cc 1385 1399
* Compaq II 80286-8Mhz MSDOS 3.1 MS C 3.0 1351 1428
* VAX 11/780 - UNIX 4.2BSD cc 1417 1441
* VAX-780/MA780 Mach/4.3 cc 1428 1470
* VAX 11/780 - UNIX 5.0.1 cc 4.1.1.31 1650 1640
* Ridge 32C V1 - ROS 3.3 Ridge C (older) 1628 1695
* Gould PN6005 - UTX 1.1c+ (4.2) cc 1732 1884
* Gould PN9080 custom ECL UTX-32 1.1C cc 4745 4992
* VAX-784 - Mach/4.3 cc 5263 5555 &4
* VAX 8600 - 4.3 BSD cc 6329 6423
* Amdahl 5860 - UTS sysV cc 1.22 28735 28846
* IBM3090/200 - ? ? 31250 31250
*
*
*----------------DHRYSTONE VERSION 1.0 RESULTS BEGIN--------------------------
*
* MACHINE MICROPROCESSOR OPERATING COMPILER DHRYSTONES/SEC.
* TYPE SYSTEM NO REG REGS
* -------------------------- ------------ ----------- ---------------
* Commodore 64 6510-1MHz C64 ROM C Power 2.8 36 36
* HP-110 8086-5.33Mhz MSDOS 2.11 Lattice 2.14 284 284
* IBM PC/XT 8088-4.77Mhz PC/IX cc 271 294
* CCC 3205 - Xelos(SVR2) cc 558 592
* Perq-II 2901 bitslice Accent S5c cc (CMU) 301 301
* IBM PC/XT 8088-4.77Mhz COHERENT 2.3.43 MarkWilliams cc 296 317
* Cosmos 68000-8Mhz UniSoft cc 305 322
* IBM PC/XT 8088-4.77Mhz Venix/86 2.0 cc 297 324
* DEC PRO 350 11/23 Venix/PRO SVR2 cc 299 325
* IBM PC 8088-4.77Mhz MSDOS 2.0 b16cc 2.0 310 340
* PDP11/23 11/23 Venix (V7) cc 320 358
* Commodore Amiga ? Lattice 3.02 368 371
* PC/XT 8088-4.77Mhz Venix/86 SYS V cc 339 377
* IBM PC 8088-4.77Mhz MSDOS 2.0 CI-C86 2.20M 390 390
* IBM PC/XT 8088-4.77Mhz PCDOS 2.1 Wizard 2.1 367 403
* IBM PC/XT 8088-4.77Mhz PCDOS 3.1 Lattice 2.15 403 403 @
* Colex DM-6 68010-8Mhz Unisoft SYSV cc 378 410
* IBM PC 8088-4.77Mhz PCDOS 3.1 Datalight 1.10 416 416
* IBM PC NEC V20-4.77Mhz MSDOS 3.1 MS 3.1 387 420
* IBM PC/XT 8088-4.77Mhz PCDOS 2.1 Microsoft 3.0 390 427
* IBM PC NEC V20-4.77Mhz MSDOS 3.1 MS 3.1 (186) 393 427
* PDP-11/34 - UNIX V7M cc 387 438
* IBM PC 8088, 4.77mhz PC-DOS 2.1 Aztec C v3.2d 423 454
* Tandy 1000 V20, 4.77mhz MS-DOS 2.11 Aztec C v3.2d 423 458
* Tandy TRS-16B 68000-6Mhz Xenix 1.3.5 cc 438 458
* PDP-11/34 - RSTS/E decus c 438 495
* Onyx C8002 Z8000-4Mhz IS/1 1.1 (V7) cc 476 511
* Tandy TRS-16B 68000-6Mhz Xenix 1.3.5 Green Hills 609 617
* DEC PRO 380 11/73 Venix/PRO SVR2 cc 577 628
* FHL QT+ 68000-10Mhz Os9/68000 version 1.3 603 649 FH
* Apollo DN550 68010-?Mhz AegisSR9/IX cc 3.12 666 666
* HP-110 8086-5.33Mhz MSDOS 2.11 Aztec-C 641 676
* 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
* Tandy 6000 68000-8Mhz Xenix 3.0 cc 694 694
* IBM PC/AT 80286-6Mhz Xenix 3.0 cc 684 704 MM
* Macintosh 68000-7.8Mhz 2M Mac Rom Mac C 32 bit int 694 704
* Macintosh 68000-7.7Mhz - MegaMax C 2.0 661 709
* Macintosh512 68000-7.7Mhz Mac ROM O/S DeSmet(C ware) 714 714
* IBM PC/AT 80286-6Mhz Xenix 3.0 cc 704 714 LM
* Codata 3300 68000-8Mhz UniPlus+ (v7) cc 678 725
* WICAT MB 68000-8Mhz System V WICAT C 4.1 585 731 ~
* Cadmus 9000 68010-10Mhz UNIX cc 714 735
* AT&T 6300 8086-8Mhz Venix/86 SVR2 cc 668 743
* Cadmus 9790 68010-10Mhz 1MB SVR0,Cadmus3.7 cc 720 747
* NEC PC9801F 8086-8Mhz PCDOS 2.11 Lattice 2.15 768 - @
* ATT PC6300 8086-8Mhz MSDOS 2.11 CI-C86 2.20M 769 769
* Burroughs XE550 68010-10Mhz Centix 2.10 cc 769 769 CT1
* EAGLE/TURBO 8086-8Mhz Venix/86 SVR2 cc 696 779
* ALTOS 586 8086-10Mhz Xenix 3.0b cc 724 793
* DEC 11/73 J-11 micro Ultrix-11 V3.0 cc 735 793
* ATT 3B2/300 WE32000-?Mhz UNIX 5.0.2 cc 735 806
* Apollo DN320 68010-?Mhz AegisSR9/IX cc 3.12 806 806
* IRIS-2400 68010-10Mhz UNIX System V cc 772 829
* Atari 520ST 68000-8Mhz TOS DigResearch 839 846
* IBM PC/AT 80286-6Mhz PCDOS 3.0 MS 3.0(large) 833 847 LM
* WICAT MB 68000-8Mhz System V WICAT C 4.1 675 853 S~
* VAX 11/750 - Ultrix 1.1 4.2BSD cc 781 862
* CCC 7350A 68000-8MHz UniSoft V.2 cc 821 875
* VAX 11/750 - UNIX 4.2bsd cc 862 877
* Fast Mac 68000-7.7Mhz - MegaMax C 2.0 839 904 +
* IBM PC/XT 8086-9.54Mhz PCDOS 3.1 Microsoft 3.0 833 909 C1
* DEC 11/44 Ultrix-11 V3.0 cc 862 909
* Macintosh 68000-7.8Mhz 2M Mac Rom Mac C 16 bit int 877 909 S
* CCC 3210 - Xelos R01(SVR2) cc 849 924
* CCC 3220 - Ed. 7 v2.3 cc 892 925
* IBM PC/AT 80286-6Mhz Xenix 3.0 cc -i 909 925
* AT&T 6300 8086, 8mhz MS-DOS 2.11 Aztec C v3.2d 862 943
* IBM PC/AT 80286-6Mhz Xenix 3.0 cc 892 961
* VAX 11/750 w/FPA Eunice 3.2 cc 914 976
* IBM PC/XT 8086-9.54Mhz PCDOS 3.1 Wizard 2.1 892 980 C1
* IBM PC/XT 8086-9.54Mhz PCDOS 3.1 Lattice 2.15 980 980 C1
* Plexus P35 68000-10Mhz UNIX System III cc 984 980
* PDP-11/73 KDJ11-AA 15Mhz UNIX V7M 2.1 cc 862 981
* VAX 11/750 w/FPA UNIX 4.3bsd cc 994 997
* IRIS-1400 68010-10Mhz UNIX System V cc 909 1000
* IBM PC/AT 80286-6Mhz Venix/86 2.1 cc 961 1000
* IBM PC/AT 80286-6Mhz PCDOS 3.0 b16cc 2.0 943 1063
* Zilog S8000/11 Z8001-5.5Mhz Zeus 3.2 cc 1011 1084
* NSC ICM-3216 NSC 32016-10Mhz UNIX SVR2 cc 1041 1084
* IBM PC/AT 80286-6Mhz PCDOS 3.0 MS 3.0(small) 1063 1086
* VAX 11/750 w/FPA VMS VAX-11 C 2.0 958 1091
* Stride 68000-10Mhz System-V/68 cc 1041 1111
* Plexus P/60 MC68000-12.5Mhz UNIX SYSIII Plexus 1111 1111
* ATT PC7300 68010-10Mhz UNIX 5.0.2 cc 1041 1111
* CCC 3230 - Xelos R01(SVR2) cc 1040 1126
* Stride 68000-12Mhz System-V/68 cc 1063 1136
* IBM PC/AT 80286-6Mhz Venix/286 SVR2 cc 1056 1149
* Plexus P/60 MC68000-12.5Mhz UNIX SYSIII Plexus 1111 1163 T
* IBM PC/AT 80286-6Mhz PCDOS 3.0 Datalight 1.10 1190 1190
* ATT PC6300+ 80286-6Mhz MSDOS 3.1 b16cc 2.0 1111 1219
* IBM PC/AT 80286-6Mhz PCDOS 3.1 Wizard 2.1 1136 1219
* Sun2/120 68010-10Mhz Sun 4.2BSD cc 1136 1219
* IBM PC/AT 80286-6Mhz PCDOS 3.0 CI-C86 2.20M 1219 1219
* WICAT PB 68000-8Mhz System V WICAT C 4.1 998 1226 ~
* MASSCOMP 500 68010-10MHz RTU V3.0 cc (V3.2) 1156 1238
* Alliant FX/8 IP (68012-12Mhz) Concentrix cc -ip;exec -i 1170 1243 FX
* Cyb DataMate 68010-12.5Mhz Uniplus 5.0 Unisoft cc 1162 1250
* PDP 11/70 - UNIX 5.2 cc 1162 1250
* IBM PC/AT 80286-6Mhz PCDOS 3.1 Lattice 2.15 1250 1250
* IBM PC/AT 80286-7.5Mhz Venix/86 2.1 cc 1190 1315 *15
* Sun2/120 68010-10Mhz Standalone cc 1219 1315
* Intel 380 80286-8Mhz Xenix R3.0up1 cc 1250 1315 *16
* Sequent Balance 8000 NS32032-10MHz Dynix 2.0 cc 1250 1315 N12
* IBM PC/DSI-32 32032-10Mhz MSDOS 3.1 GreenHills 2.14 1282 1315 C3
* ATT 3B2/400 WE32100-?Mhz UNIX 5.2 cc 1315 1315
* CCC 3250XP - Xelos R01(SVR2) cc 1215 1318
* IBM PC/RT 032 RISC(801?)?Mhz BSD 4.2 cc 1248 1333 RT
* DG MV4000 - AOS/VS 5.00 cc 1333 1333
* IBM PC/AT 80286-8Mhz Venix/86 2.1 cc 1275 1380 *16
* IBM PC/AT 80286-6Mhz MSDOS 3.0 Microsoft 3.0 1250 1388
* ATT PC6300+ 80286-6Mhz MSDOS 3.1 CI-C86 2.20M 1428 1428
* COMPAQ/286 80286-8Mhz Venix/286 SVR2 cc 1326 1443
* IBM PC/AT 80286-7.5Mhz Venix/286 SVR2 cc 1333 1449 *15
* WICAT PB 68000-8Mhz System V WICAT C 4.1 1169 1464 S~
* Tandy II/6000 68000-8Mhz Xenix 3.0 cc 1384 1477
* MicroVAX II - Mach/4.3 cc 1513 1536
* WICAT MB 68000-12.5Mhz System V WICAT C 4.1 1246 1537 ~
* IBM PC/AT 80286-9Mhz SCO Xenix V cc 1540 1556 *18
* Cyb DataMate 68010-12.5Mhz Uniplus 5.0 Unisoft cc 1470 1562 S
* VAX 11/780 - UNIX 5.2 cc 1515 1562
* MicroVAX-II - - - 1562 1612
* VAX-780/MA780 Mach/4.3 cc 1587 1612
* VAX 11/780 - UNIX 4.3bsd cc 1646 1662
* Apollo DN660 - AegisSR9/IX cc 3.12 1666 1666
* ATT 3B20 - UNIX 5.2 cc 1515 1724
* NEC PC-98XA 80286-8Mhz PCDOS 3.1 Lattice 2.15 1724 1724 @
* HP9000-500 B series CPU HP-UX 4.02 cc 1724 -
* Ridge 32C V1 - ROS 3.3 Ridge C (older) 1776 -
* IBM PC/STD 80286-8Mhz MSDOS 3.0 Microsoft 3.0 1724 1785 C2
* WICAT MB 68000-12.5Mhz System V WICAT C 4.1 1450 1814 S~
* WICAT PB 68000-12.5Mhz System V WICAT C 4.1 1530 1898 ~
* DEC-2065 KL10-Model B TOPS-20 6.1FT5 Port. C Comp. 1937 1946
* Gould PN6005 - UTX 1.1(4.2BSD) cc 1675 1964
* DEC2060 KL-10 TOPS-20 cc 2000 2000 NM
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