312 lines
11 KiB
C
312 lines
11 KiB
C
/*
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**************************************************************************
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* DHRYSTONE 2.1 BENCHMARK PC VERSION
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**************************************************************************
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*
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* "DHRYSTONE" Benchmark Program
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* -----------------------------
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*
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* Version: C, Version 2.1
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*
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* File: dhry.h (part 1 of 3)
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*
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* Date: May 25, 1988
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*
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* Author: Reinhold P. Weicker
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* Siemens AG, AUT E 51
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* Postfach 3220
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* 8520 Erlangen
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* Germany (West)
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* Phone: [+49]-9131-7-20330
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* (8-17 Central European Time)
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* Usenet: ..!mcsun!unido!estevax!weicker
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*
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* Original Version (in Ada) published in
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* "Communications of the ACM" vol. 27., no. 10 (Oct. 1984),
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* pp. 1013 - 1030, together with the statistics
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* on which the distribution of statements etc. is based.
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*
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* In this C version, the following C library functions are used:
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* - strcpy, strcmp (inside the measurement loop)
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* - printf, scanf (outside the measurement loop)
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* In addition, Berkeley UNIX system calls "times ()" or "time ()"
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* are used for execution time measurement. For measurements
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* on other systems, these calls have to be changed.
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*
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* Collection of Results:
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* Reinhold Weicker (address see above) and
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*
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* Rick Richardson
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* PC Research. Inc.
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* 94 Apple Orchard Drive
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* Tinton Falls, NJ 07724
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* Phone: (201) 389-8963 (9-17 EST)
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* Usenet: ...!uunet!pcrat!rick
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*
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* Please send results to Rick Richardson and/or Reinhold Weicker.
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* Complete information should be given on hardware and software used.
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* Hardware information includes: Machine type, CPU, type and size
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* of caches; for microprocessors: clock frequency, memory speed
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* (number of wait states).
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* Software information includes: Compiler (and runtime library)
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* manufacturer and version, compilation switches, OS version.
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* The Operating System version may give an indication about the
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* compiler; Dhrystone itself performs no OS calls in the measurement
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* loop.
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*
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* The complete output generated by the program should be mailed
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* such that at least some checks for correctness can be made.
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*
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**************************************************************************
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*
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* This version has changes made by Roy Longbottom to conform to a common
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* format for a series of standard benchmarks for PCs:
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*
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* Running time greater than 5 seconds due to inaccuracy of the PC clock.
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*
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* Automatic adjustment of run time, no manually inserted parameters.
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*
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* Initial display of calibration times to confirm linearity.
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*
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* Display of results within one screen (or at a slow speed as the test
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* progresses) so that it can be seen to have run successfully.
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*
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* Facilities to type in details of system used etc.
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*
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* All results and details appended to a results file.
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*
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*
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* Roy Longbottom
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* 101323.2241@compuserve.com
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*
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**************************************************************************
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*
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* For details of history, changes, other defines, benchmark construction
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* statistics see official versions from ftp.nosc.mil/pub/aburto where
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* the latest table of results (dhry.tbl) are available. See also
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* netlib@ornl.gov
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*
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**************************************************************************
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*
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* Defines: The following "Defines" are possible:
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* -DREG=register (default: Not defined)
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* As an approximation to what an average C programmer
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* might do, the "register" storage class is applied
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* (if enabled by -DREG=register)
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* - for local variables, if they are used (dynamically)
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* five or more times
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* - for parameters if they are used (dynamically)
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* six or more times
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* Note that an optimal "register" strategy is
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* compiler-dependent, and that "register" declarations
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* do not necessarily lead to faster execution.
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* -DNOSTRUCTASSIGN (default: Not defined)
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* Define if the C compiler does not support
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* assignment of structures.
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* -DNOENUMS (default: Not defined)
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* Define if the C compiler does not support
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* enumeration types.
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***************************************************************************
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*
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* Compilation model and measurement (IMPORTANT):
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*
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* This C version of Dhrystone consists of three files:
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* - dhry.h (this file, containing global definitions and comments)
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* - dhry_1.c (containing the code corresponding to Ada package Pack_1)
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* - dhry_2.c (containing the code corresponding to Ada package Pack_2)
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*
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* The following "ground rules" apply for measurements:
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* - Separate compilation
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* - No procedure merging
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* - Otherwise, compiler optimizations are allowed but should be indicated
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* - Default results are those without register declarations
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* See the companion paper "Rationale for Dhrystone Version 2" for a more
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* detailed discussion of these ground rules.
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*
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* For 16-Bit processors (e.g. 80186, 80286), times for all compilation
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* models ("small", "medium", "large" etc.) should be given if possible,
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* together with a definition of these models for the compiler system used.
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*
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**************************************************************************
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* Examples of Pentium Results
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*
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* Dhrystone Benchmark Version 2.1 (Language: C)
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*
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* Month run 4/1996
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* PC model Escom
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* CPU Pentium
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* Clock MHz 100
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* Cache 256K
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* Options Neptune chipset
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* OS/DOS Windows 95
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* Compiler Watcom C/ C++ 10.5 Win386
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* OptLevel -otexan -zp8 -fp5 -5r
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* Run by Roy Longbottom
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* From UK
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* Mail 101323.2241@compuserve.com
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*
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* Final values (* implementation-dependent):
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*
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* Int_Glob: O.K. 5
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* Bool_Glob: O.K. 1
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* Ch_1_Glob: O.K. A
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* Ch_2_Glob: O.K. B
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* Arr_1_Glob[8]: O.K. 7
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* Arr_2_Glob8/7: O.K. 1600010
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* Ptr_Glob->
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* Ptr_Comp: * 98008
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* Discr: O.K. 0
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* Enum_Comp: O.K. 2
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* Int_Comp: O.K. 17
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* Str_Comp: O.K. DHRYSTONE PROGRAM, SOME STRING
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* Next_Ptr_Glob->
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* Ptr_Comp: * 98008 same as above
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* Discr: O.K. 0
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* Enum_Comp: O.K. 1
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* Int_Comp: O.K. 18
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* Str_Comp: O.K. DHRYSTONE PROGRAM, SOME STRING
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* Int_1_Loc: O.K. 5
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* Int_2_Loc: O.K. 13
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* Int_3_Loc: O.K. 7
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* Enum_Loc: O.K. 1
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* Str_1_Loc: O.K. DHRYSTONE PROGRAM, 1'ST STRING
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* Str_2_Loc: O.K. DHRYSTONE PROGRAM, 2'ND STRING
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*
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* Register option Selected.
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*
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* Microseconds 1 loop: 4.53
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* Dhrystones / second: 220690
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* VAX MIPS rating: 125.61
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*
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*
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* Dhrystone Benchmark Version 2.1 (Language: C)
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*
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* Month run 4/1996
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* PC model Escom
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* CPU Pentium
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* Clock MHz 100
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* Cache 256K
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* Options Neptune chipset
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* OS/DOS Windows 95
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* Compiler Watcom C/ C++ 10.5 Win386
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* OptLevel No optimisation
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* Run by Roy Longbottom
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* From UK
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* Mail 101323.2241@compuserve.com
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*
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* Final values (* implementation-dependent):
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*
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* Int_Glob: O.K. 5
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* Bool_Glob: O.K. 1
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* Ch_1_Glob: O.K. A
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* Ch_2_Glob: O.K. B
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* Arr_1_Glob[8]: O.K. 7
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* Arr_2_Glob8/7: O.K. 320010
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* Ptr_Glob->
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* Ptr_Comp: * 98004
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* Discr: O.K. 0
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* Enum_Comp: O.K. 2
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* Int_Comp: O.K. 17
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* Str_Comp: O.K. DHRYSTONE PROGRAM, SOME STRING
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* Next_Ptr_Glob->
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* Ptr_Comp: * 98004 same as above
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* Discr: O.K. 0
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* Enum_Comp: O.K. 1
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* Int_Comp: O.K. 18
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* Str_Comp: O.K. DHRYSTONE PROGRAM, SOME STRING
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* Int_1_Loc: O.K. 5
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* Int_2_Loc: O.K. 13
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* Int_3_Loc: O.K. 7
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* Enum_Loc: O.K. 1
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* Str_1_Loc: O.K. DHRYSTONE PROGRAM, 1'ST STRING
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* Str_2_Loc: O.K. DHRYSTONE PROGRAM, 2'ND STRING
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*
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* Register option Not selected.
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*
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* Microseconds 1 loop: 20.06
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* Dhrystones / second: 49844
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* VAX MIPS rating: 28.37
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*
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**************************************************************************
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*/
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/* Compiler and system dependent definitions: */
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#ifndef TIME
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#define TIMES
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#endif
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/* Use times(2) time function unless */
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/* explicitly defined otherwise */
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#ifdef TIMES
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/* #include <sys/types.h>
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#include <sys/times.h> */
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/* for "times" */
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#endif
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#define Mic_secs_Per_Second 1000000.0
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/* Berkeley UNIX C returns process times in seconds/HZ */
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#ifdef NOSTRUCTASSIGN
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#define structassign(d, s) memcpy(&(d), &(s), sizeof(d))
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#else
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#define structassign(d, s) d = s
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#endif
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#ifdef NOENUM
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#define Ident_1 0
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#define Ident_2 1
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#define Ident_3 2
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#define Ident_4 3
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#define Ident_5 4
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typedef int Enumeration;
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#else
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typedef enum {Ident_1, Ident_2, Ident_3, Ident_4, Ident_5}
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Enumeration;
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#endif
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/* for boolean and enumeration types in Ada, Pascal */
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/* General definitions: */
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#include <stdio.h>
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#include <string.h>
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/* for strcpy, strcmp */
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#define Null 0
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/* Value of a Null pointer */
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#define true 1
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#define false 0
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typedef int One_Thirty;
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typedef int One_Fifty;
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typedef char Capital_Letter;
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typedef int Boolean;
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typedef char Str_30 [31];
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typedef int Arr_1_Dim [50];
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typedef int Arr_2_Dim [50] [50];
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typedef struct record
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{
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struct record *Ptr_Comp;
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Enumeration Discr;
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union {
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struct {
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Enumeration Enum_Comp;
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int Int_Comp;
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char Str_Comp [31];
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} var_1;
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struct {
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Enumeration E_Comp_2;
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char Str_2_Comp [31];
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} var_2;
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struct {
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char Ch_1_Comp;
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char Ch_2_Comp;
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} var_3;
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} variant;
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} Rec_Type, *Rec_Pointer;
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