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/* dhrystone - benchmark program */
#define REGISTER
/*
*
* "DHRYSTONE" Benchmark Program
*
* Version: C/1.1, 12/01/84
*
* Date: PROGRAM updated 01/06/86, COMMENTS changed 01/31/87
*
* 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. Be careful to
* adjust the HZ parameter below for the units which
* are returned by your times(2) function. You can
* sometimes find this in <sys/param.h>. If you have
* neither time(2) nor times(2), use a stopwatch in
* the dead of the 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.
*
* 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.
*
*
* The following program contains statements of a high-level programming
* language (C) in a distribution considered representative:
*
* assignments 53%
* control statements 32%
* procedure, function calls 15%
*
* 100 statements are dynamically executed. The program is balanced with
* respect to the three aspects:
* - statement type
* - operand type (for simple data types)
* - operand access
* operand global, local, parameter, or constant.
*
* The combination of these three aspects is balanced only approximately.
*
* The program does not compute anything meaningfull, but it is
* syntactically and semantically correct.
*
*/
/* Accuracy of timings and human fatigue controlled by next two lines */
/*#define LOOPS 50000 /* Use this for slow or 16 bit machines */
#define LOOPS 500000 /* Use this for faster machines */
/* Compiler dependent options */
#define NOENUM /* Define if compiler has no enum's */
#define NOSTRUCTASSIGN /* Define if compiler can't assign structures */
/* Define only one of the next two defines */
/*#define TIMES /* Use times(2) time function */
#define TIME /* Use time(2) time function */
/* Define the granularity of your times(2) function (when used) */
/*#define HZ 50 /* times(2) returns 1/50 second (europe?) */
#define HZ 60 /* times(2) returns 1/60 second (most) */
/*#define HZ 100 /* times(2) returns 1/100 second (WECo) */
/* For compatibility with goofed up version */
/*#undef GOOF /* Define if you want the goofed up version */
#ifdef GOOF
char Version[] = "1.0";
#else
char Version[] = "1.1";
#endif
#ifdef NOSTRUCTASSIGN
#define structassign(d, s) memcpy(&(d), &(s), sizeof(d))
#else
#define structassign(d, s) d = s
#endif
#ifdef NOENUM
#define Ident1 1
#define Ident2 2
#define Ident3 3
#define Ident4 4
#define Ident5 5
typedef int Enumeration;
#else
typedef enum {
Ident1, Ident2, Ident3, Ident4, Ident5
} Enumeration;
#endif
typedef int OneToThirty;
typedef int OneToFifty;
typedef char CapitalLetter;
typedef char String30[31];
typedef int Array1Dim[51];
typedef int Array2Dim[51][51];
struct Record {
struct Record *PtrComp;
Enumeration Discr;
Enumeration EnumComp;
OneToFifty IntComp;
String30 StringComp;
};
typedef struct Record RecordType;
typedef RecordType *RecordPtr;
typedef int boolean;
#define NULL 0
#define TRUE 1
#define FALSE 0
#ifndef REG
#define REG
#endif
extern Enumeration Func1();
extern boolean Func2();
#ifdef TIMES
#include <sys/types.h>
#include <sys/times.h>
#endif
main()
{
Proc0();
exit(0);
}
/* Package 1 */
int IntGlob;
boolean BoolGlob;
char Char1Glob;
char Char2Glob;
Array1Dim Array1Glob;
Array2Dim Array2Glob;
RecordPtr PtrGlb;
RecordPtr PtrGlbNext;
Proc0()
{
OneToFifty IntLoc1;
REG OneToFifty IntLoc2;
OneToFifty IntLoc3;
REG char CharLoc;
REG char CharIndex;
Enumeration EnumLoc;
String30 String1Loc;
String30 String2Loc;
extern char *malloc();
register unsigned int i;
#ifdef TIME
long time();
long starttime;
long benchtime;
long nulltime;
starttime = time((long *) 0);
for (i = 0; i < LOOPS; ++i);
nulltime = time((long *) 0) - starttime; /* Computes o'head of loop */
#endif
#ifdef TIMES
time_t starttime;
time_t benchtime;
time_t nulltime;
struct tms tms;
times(&tms);
starttime = tms.tms_utime;
for (i = 0; i < LOOPS; ++i);
times(&tms);
nulltime = tms.tms_utime - starttime; /* Computes overhead of looping */
#endif
PtrGlbNext = (RecordPtr) malloc(sizeof(RecordType));
PtrGlb = (RecordPtr) malloc(sizeof(RecordType));
PtrGlb->PtrComp = PtrGlbNext;
PtrGlb->Discr = Ident1;
PtrGlb->EnumComp = Ident3;
PtrGlb->IntComp = 40;
strcpy(PtrGlb->StringComp, "DHRYSTONE PROGRAM, SOME STRING");
#ifndef GOOF
strcpy(String1Loc, "DHRYSTONE PROGRAM, 1'ST STRING"); /* GOOF */
#endif
Array2Glob[8][7] = 10; /* Was missing in published program */
/*****************
-- Start Timer --