| .. | |||||
| support | |||||
| __init__.py | |||||
| __init__.pyc | |||||
| pystone.py | |||||
| pystone.pyc | |||||
| regrtest.py | |||||
| regrtest.pyc | |||||
| test_support.py | |||||
| test_support.pyc |
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#! /usr/bin/python2.7
"""
"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
if benchtime == 0.0:
loopsPerBenchtime = 0.0
else:
loopsPerBenchtime = (loops / benchtime)
return benchtime, loopsPerBenchtime
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)
| .. | |||||
| support | |||||
| __init__.py | |||||
| __init__.pyc | |||||
| pystone.py | |||||
| pystone.pyc | |||||
| regrtest.py | |||||
| regrtest.pyc | |||||
| test_support.py | |||||
| test_support.pyc |