267 lines
7.1 KiB
Python
267 lines
7.1 KiB
Python
![]() |
#! /usr/bin/env python
|
||
|
|
||
|
"""
|
||
|
"PYSTONE" Benchmark Program
|
||
|
|
||
|
Version: Python/1.1 (corresponds to C/1.1 plus 2 Pystone fixes)
|
||
|
|
||
|
Author: Reinhold P. Weicker, CACM Vol 27, No 10, 10/84 pg. 1013.
|
||
|
|
||
|
Translated from ADA to C by Rick Richardson.
|
||
|
Every method to preserve ADA-likeness has been used,
|
||
|
at the expense of C-ness.
|
||
|
|
||
|
Translated from C to Python by Guido van Rossum.
|
||
|
|
||
|
Version History:
|
||
|
|
||
|
Version 1.1 corrects two bugs in version 1.0:
|
||
|
|
||
|
First, it leaked memory: in Proc1(), NextRecord ends
|
||
|
up having a pointer to itself. I have corrected this
|
||
|
by zapping NextRecord.PtrComp at the end of Proc1().
|
||
|
|
||
|
Second, Proc3() used the operator != to compare a
|
||
|
record to None. This is rather inefficient and not
|
||
|
true to the intention of the original benchmark (where
|
||
|
a pointer comparison to None is intended; the !=
|
||
|
operator attempts to find a method __cmp__ to do value
|
||
|
comparison of the record). Version 1.1 runs 5-10
|
||
|
percent faster than version 1.0, so benchmark figures
|
||
|
of different versions can't be compared directly.
|
||
|
|
||
|
"""
|
||
|
|
||
|
LOOPS = 50000
|
||
|
|
||
|
from time import clock
|
||
|
|
||
|
__version__ = "1.1"
|
||
|
|
||
|
[Ident1, Ident2, Ident3, Ident4, Ident5] = range(1, 6)
|
||
|
|
||
|
class Record:
|
||
|
|
||
|
def __init__(self, PtrComp = None, Discr = 0, EnumComp = 0,
|
||
|
IntComp = 0, StringComp = 0):
|
||
|
self.PtrComp = PtrComp
|
||
|
self.Discr = Discr
|
||
|
self.EnumComp = EnumComp
|
||
|
self.IntComp = IntComp
|
||
|
self.StringComp = StringComp
|
||
|
|
||
|
def copy(self):
|
||
|
return Record(self.PtrComp, self.Discr, self.EnumComp,
|
||
|
self.IntComp, self.StringComp)
|
||
|
|
||
|
TRUE = 1
|
||
|
FALSE = 0
|
||
|
|
||
|
def main(loops=LOOPS):
|
||
|
benchtime, stones = pystones(loops)
|
||
|
print "Pystone(%s) time for %d passes = %g" % \
|
||
|
(__version__, loops, benchtime)
|
||
|
print "This machine benchmarks at %g pystones/second" % stones
|
||
|
|
||
|
|
||
|
def pystones(loops=LOOPS):
|
||
|
return Proc0(loops)
|
||
|
|
||
|
IntGlob = 0
|
||
|
BoolGlob = FALSE
|
||
|
Char1Glob = '\0'
|
||
|
Char2Glob = '\0'
|
||
|
Array1Glob = [0]*51
|
||
|
Array2Glob = map(lambda x: x[:], [Array1Glob]*51)
|
||
|
PtrGlb = None
|
||
|
PtrGlbNext = None
|
||
|
|
||
|
def Proc0(loops=LOOPS):
|
||
|
global IntGlob
|
||
|
global BoolGlob
|
||
|
global Char1Glob
|
||
|
global Char2Glob
|
||
|
global Array1Glob
|
||
|
global Array2Glob
|
||
|
global PtrGlb
|
||
|
global PtrGlbNext
|
||
|
|
||
|
starttime = clock()
|
||
|
for i in range(loops):
|
||
|
pass
|
||
|
nulltime = clock() - starttime
|
||
|
|
||
|
PtrGlbNext = Record()
|
||
|
PtrGlb = Record()
|
||
|
PtrGlb.PtrComp = PtrGlbNext
|
||
|
PtrGlb.Discr = Ident1
|
||
|
PtrGlb.EnumComp = Ident3
|
||
|
PtrGlb.IntComp = 40
|
||
|
PtrGlb.StringComp = "DHRYSTONE PROGRAM, SOME STRING"
|
||
|
String1Loc = "DHRYSTONE PROGRAM, 1'ST STRING"
|
||
|
Array2Glob[8][7] = 10
|
||
|
|
||
|
starttime = clock()
|
||
|
|
||
|
for i in range(loops):
|
||
|
Proc5()
|
||
|
Proc4()
|
||
|
IntLoc1 = 2
|
||
|
IntLoc2 = 3
|
||
|
String2Loc = "DHRYSTONE PROGRAM, 2'ND STRING"
|
||
|
EnumLoc = Ident2
|
||
|
BoolGlob = not Func2(String1Loc, String2Loc)
|
||
|
while IntLoc1 < IntLoc2:
|
||
|
IntLoc3 = 5 * IntLoc1 - IntLoc2
|
||
|
IntLoc3 = Proc7(IntLoc1, IntLoc2)
|
||
|
IntLoc1 = IntLoc1 + 1
|
||
|
Proc8(Array1Glob, Array2Glob, IntLoc1, IntLoc3)
|
||
|
PtrGlb = Proc1(PtrGlb)
|
||
|
CharIndex = 'A'
|
||
|
while CharIndex <= Char2Glob:
|
||
|
if EnumLoc == Func1(CharIndex, 'C'):
|
||
|
EnumLoc = Proc6(Ident1)
|
||
|
CharIndex = chr(ord(CharIndex)+1)
|
||
|
IntLoc3 = IntLoc2 * IntLoc1
|
||
|
IntLoc2 = IntLoc3 / IntLoc1
|
||
|
IntLoc2 = 7 * (IntLoc3 - IntLoc2) - IntLoc1
|
||
|
IntLoc1 = Proc2(IntLoc1)
|
||
|
|
||
|
benchtime = clock() - starttime - nulltime
|
||
|
return benchtime, (loops / benchtime)
|
||
|
|
||
|
def Proc1(PtrParIn):
|
||
|
PtrParIn.PtrComp = NextRecord = PtrGlb.copy()
|
||
|
PtrParIn.IntComp = 5
|
||
|
NextRecord.IntComp = PtrParIn.IntComp
|
||
|
NextRecord.PtrComp = PtrParIn.PtrComp
|
||
|
NextRecord.PtrComp = Proc3(NextRecord.PtrComp)
|
||
|
if NextRecord.Discr == Ident1:
|
||
|
NextRecord.IntComp = 6
|
||
|
NextRecord.EnumComp = Proc6(PtrParIn.EnumComp)
|
||
|
NextRecord.PtrComp = PtrGlb.PtrComp
|
||
|
NextRecord.IntComp = Proc7(NextRecord.IntComp, 10)
|
||
|
else:
|
||
|
PtrParIn = NextRecord.copy()
|
||
|
NextRecord.PtrComp = None
|
||
|
return PtrParIn
|
||
|
|
||
|
def Proc2(IntParIO):
|
||
|
IntLoc = IntParIO + 10
|
||
|
while 1:
|
||
|
if Char1Glob == 'A':
|
||
|
IntLoc = IntLoc - 1
|
||
|
IntParIO = IntLoc - IntGlob
|
||
|
EnumLoc = Ident1
|
||
|
if EnumLoc == Ident1:
|
||
|
break
|
||
|
return IntParIO
|
||
|
|
||
|
def Proc3(PtrParOut):
|
||
|
global IntGlob
|
||
|
|
||
|
if PtrGlb is not None:
|
||
|
PtrParOut = PtrGlb.PtrComp
|
||
|
else:
|
||
|
IntGlob = 100
|
||
|
PtrGlb.IntComp = Proc7(10, IntGlob)
|
||
|
return PtrParOut
|
||
|
|
||
|
def Proc4():
|
||
|
global Char2Glob
|
||
|
|
||
|
BoolLoc = Char1Glob == 'A'
|
||
|
BoolLoc = BoolLoc or BoolGlob
|
||
|
Char2Glob = 'B'
|
||
|
|
||
|
def Proc5():
|
||
|
global Char1Glob
|
||
|
global BoolGlob
|
||
|
|
||
|
Char1Glob = 'A'
|
||
|
BoolGlob = FALSE
|
||
|
|
||
|
def Proc6(EnumParIn):
|
||
|
EnumParOut = EnumParIn
|
||
|
if not Func3(EnumParIn):
|
||
|
EnumParOut = Ident4
|
||
|
if EnumParIn == Ident1:
|
||
|
EnumParOut = Ident1
|
||
|
elif EnumParIn == Ident2:
|
||
|
if IntGlob > 100:
|
||
|
EnumParOut = Ident1
|
||
|
else:
|
||
|
EnumParOut = Ident4
|
||
|
elif EnumParIn == Ident3:
|
||
|
EnumParOut = Ident2
|
||
|
elif EnumParIn == Ident4:
|
||
|
pass
|
||
|
elif EnumParIn == Ident5:
|
||
|
EnumParOut = Ident3
|
||
|
return EnumParOut
|
||
|
|
||
|
def Proc7(IntParI1, IntParI2):
|
||
|
IntLoc = IntParI1 + 2
|
||
|
IntParOut = IntParI2 + IntLoc
|
||
|
return IntParOut
|
||
|
|
||
|
def Proc8(Array1Par, Array2Par, IntParI1, IntParI2):
|
||
|
global IntGlob
|
||
|
|
||
|
IntLoc = IntParI1 + 5
|
||
|
Array1Par[IntLoc] = IntParI2
|
||
|
Array1Par[IntLoc+1] = Array1Par[IntLoc]
|
||
|
Array1Par[IntLoc+30] = IntLoc
|
||
|
for IntIndex in range(IntLoc, IntLoc+2):
|
||
|
Array2Par[IntLoc][IntIndex] = IntLoc
|
||
|
Array2Par[IntLoc][IntLoc-1] = Array2Par[IntLoc][IntLoc-1] + 1
|
||
|
Array2Par[IntLoc+20][IntLoc] = Array1Par[IntLoc]
|
||
|
IntGlob = 5
|
||
|
|
||
|
def Func1(CharPar1, CharPar2):
|
||
|
CharLoc1 = CharPar1
|
||
|
CharLoc2 = CharLoc1
|
||
|
if CharLoc2 != CharPar2:
|
||
|
return Ident1
|
||
|
else:
|
||
|
return Ident2
|
||
|
|
||
|
def Func2(StrParI1, StrParI2):
|
||
|
IntLoc = 1
|
||
|
while IntLoc <= 1:
|
||
|
if Func1(StrParI1[IntLoc], StrParI2[IntLoc+1]) == Ident1:
|
||
|
CharLoc = 'A'
|
||
|
IntLoc = IntLoc + 1
|
||
|
if CharLoc >= 'W' and CharLoc <= 'Z':
|
||
|
IntLoc = 7
|
||
|
if CharLoc == 'X':
|
||
|
return TRUE
|
||
|
else:
|
||
|
if StrParI1 > StrParI2:
|
||
|
IntLoc = IntLoc + 7
|
||
|
return TRUE
|
||
|
else:
|
||
|
return FALSE
|
||
|
|
||
|
def Func3(EnumParIn):
|
||
|
EnumLoc = EnumParIn
|
||
|
if EnumLoc == Ident3: return TRUE
|
||
|
return FALSE
|
||
|
|
||
|
if __name__ == '__main__':
|
||
|
import sys
|
||
|
def error(msg):
|
||
|
print >>sys.stderr, msg,
|
||
|
print >>sys.stderr, "usage: %s [number_of_loops]" % sys.argv[0]
|
||
|
sys.exit(100)
|
||
|
nargs = len(sys.argv) - 1
|
||
|
if nargs > 1:
|
||
|
error("%d arguments are too many;" % nargs)
|
||
|
elif nargs == 1:
|
||
|
try: loops = int(sys.argv[1])
|
||
|
except ValueError:
|
||
|
error("Invalid argument %r;" % sys.argv[1])
|
||
|
else:
|
||
|
loops = LOOPS
|
||
|
main(loops)
|