我使用的是Python的hotshot分析器:http://docs.python.org/2/library/hotshot.html
它显示了如何打印统计数据:
stats.print_stats(20)
但是我如何将其放入文件中呢?我不确定如何获取信息,所以我可以使用write()将其写入文件。
编辑:
我希望以这种方式打印出来的结果和打印出来的结果一样容易阅读:
stats = hotshot.stats.load("stones.prof")
stats.strip_dirs()
stats.sort_stats('time', 'calls')
stats.print_stats(20)
所以看起来是这样的:
ncalls tottime percall cumtime percall filename:lineno(function)
1 3.295 3.295 10.090 10.090 pystone.py:79(Proc0)
(因此,当我打开stones.prof时,它看起来并不像这样)
发布于 2012-11-24 17:27:03
我最终重写了print_stats()函数,从从pstats.py复制开始。它返回一个字符串,然后可以将该字符串写入文件。我没有测试每个if-else循环,只是在我需要它的示例中测试了它。我把原始行注释掉了。我保留了变量名不变,尽管函数不再使用真正的"self“。
stats = hotshot.stats.load("stones.prof")
stats.strip_dirs()
stats.sort_stats('time', 'calls')
readable_str = xprint_stats(stats, 20)
import pstats
def xprint_stats(self, *amount):
x = ""
for filename in self.files:
x += " " + filename
#if self.files: print >> self.stream
# ?
indent = ' ' * 8
for func in self.top_level:
#print >> self.stream, indent, xfunc_get_function_name(func)
x += indent + pstats.func_get_function_name(func)
#print >> self.stream, indent, self.total_calls, "function calls",
x += indent + str(self.total_calls) + " function calls" + " "
if self.total_calls != self.prim_calls:
#print >> self.stream, "(%d primitive calls)" % self.prim_calls,
x += "(%d primitive calls)" % self.prim_calls + " "
#print >> self.stream, "in %.3f seconds" % self.total_tt
#print >> self.stream
x += "in %.3f seconds" % self.total_tt + "\n"
#width, list = stats.get_print_list(amount)
msg, width, list = xget_print_list(stats, amount)
x += msg
if list:
#self.print_title()
x += "\n" + ' ncalls tottime percall cumtime percall filename:lineno(function)'
x += "\n"
for func in list:
#self.print_line(func)
x += xprint_line(self, func) + "\n"
# print >> self.stream
# print >> self.stream
#return self
return x
def xprint_line(self, func):
x = ""
cc, nc, tt, ct, callers = self.stats[func]
c = str(nc)
if nc != cc:
c = c + '/' + str(cc)
# print >> self.stream, c.rjust(9),
# print >> self.stream, f8(tt),
x += c.rjust(9) + " "
x += pstats.f8(tt) + " "
if nc == 0:
#print >> self.stream, ' '*8,
x += ' '*8
else:
#print >> self.stream, f8(float(tt)/nc),
x += pstats.f8(float(tt)/nc) + " "
#print >> self.stream, f8(ct),
x += pstats.f8(ct) + " "
if cc == 0:
#print >> self.stream, ' '*8,
x += ' '*8
else:
#print >> self.stream, f8(float(ct)/cc),
x += pstats.f8(float(ct)/cc) + " "
#print >> self.stream, func_std_string(func)
x += pstats.func_std_string(func) + " "
return x
def xget_print_list(self, sel_list):
width = self.max_name_len
if self.fcn_list:
stat_list = self.fcn_list[:]
msg = " Ordered by: " + self.sort_type + '\n'
else:
stat_list = self.stats.keys()
msg = " Random listing order was used\n"
for selection in sel_list:
stat_list, msg = self.eval_print_amount(selection, stat_list, msg)
count = len(stat_list)
if not stat_list:
return 0, stat_list
#print >> self.stream, msg
if count < len(self.stats):
width = 0
for func in stat_list:
if len(pstats.func_std_string(func)) > width:
width = len(pstats.func_std_string(func))
#return width+2, stat_list
return msg, width+2, stat_list
发布于 2013-05-09 01:34:25
Stats接受一个可选的'stream‘参数。只需打开一个文件并将打开的文件对象传递给Stats构造函数,如下所示。从那时起,对print_stats()的任何调用都将输出到您传递给构造函数的流。希望这能有所帮助。:)
with open('path/to/output', 'w') as stream:
stats = pstats.Stats('path/to/input', stream=stream)
stats.print_stats()
发布于 2013-04-14 03:25:12
输出重定向怎么样?
import sys
import pstats
sys.stdout = open('readable.profile', 'w')
p = pstats.Stats('input.profile')
p.print_stats()
https://stackoverflow.com/questions/13532531
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