Skip to content

Commit 0398a9a

Browse files
ChrisBarker-NOAAChrisBarker-NOAA
committed
added a small pstats demo
1 parent a3f7323 commit 0398a9a

2 files changed

Lines changed: 137 additions & 2 deletions

File tree

‎week-08/code/pstats_demo.ipynb‎

Lines changed: 135 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,135 @@
1+
{
2+
"metadata": {
3+
"name": "pstats_demo"
4+
},
5+
"nbformat": 3,
6+
"nbformat_minor": 0,
7+
"worksheets": [
8+
{
9+
"cells": [
10+
{
11+
"cell_type": "markdown",
12+
"metadata": {},
13+
"source": [
14+
"# Pstats example:\n",
15+
"\n",
16+
"first build the profile data with:\n",
17+
"\n",
18+
"$ python -m cProfile -o profile_dump profile_example.py\n"
19+
]
20+
},
21+
{
22+
"cell_type": "code",
23+
"collapsed": false,
24+
"input": [
25+
"import pstats\n"
26+
],
27+
"language": "python",
28+
"metadata": {},
29+
"outputs": [],
30+
"prompt_number": 1
31+
},
32+
{
33+
"cell_type": "code",
34+
"collapsed": false,
35+
"input": [
36+
"p = pstats.Stats(\"profile_dump\")\n"
37+
],
38+
"language": "python",
39+
"metadata": {},
40+
"outputs": [],
41+
"prompt_number": 2
42+
},
43+
{
44+
"cell_type": "code",
45+
"collapsed": false,
46+
"input": [
47+
"p.print_stats()"
48+
],
49+
"language": "python",
50+
"metadata": {},
51+
"outputs": [
52+
{
53+
"output_type": "stream",
54+
"stream": "stdout",
55+
"text": [
56+
"Tue May 14 17:42:50 2013 profile_dump\n",
57+
"\n",
58+
" 51403 function calls in 0.028 seconds\n",
59+
"\n",
60+
" Random listing order was used\n",
61+
"\n",
62+
" ncalls tottime percall cumtime percall filename:lineno(function)\n",
63+
" 51200 0.005 0.000 0.005 0.000 {method 'append' of 'list' objects}\n",
64+
" 1 0.000 0.000 0.028 0.028 profile_example.py:9(<module>)\n",
65+
" 1 0.001 0.001 0.028 0.028 profile_example.py:28(main)\n",
66+
" 100 0.020 0.000 0.024 0.000 profile_example.py:11(odd_numbers)\n",
67+
" 100 0.003 0.000 0.028 0.000 profile_example.py:19(sum_odd_numbers)\n",
68+
" 1 0.000 0.000 0.000 0.000 {method 'disable' of '_lsprof.Profiler' objects}\n",
69+
"\n",
70+
"\n"
71+
]
72+
},
73+
{
74+
"output_type": "pyout",
75+
"prompt_number": 4,
76+
"text": [
77+
"<pstats.Stats instance at 0x1c50300>"
78+
]
79+
}
80+
],
81+
"prompt_number": 4
82+
},
83+
{
84+
"cell_type": "code",
85+
"collapsed": false,
86+
"input": [
87+
"p.sort_stats('time').print_stats()"
88+
],
89+
"language": "python",
90+
"metadata": {},
91+
"outputs": [
92+
{
93+
"output_type": "stream",
94+
"stream": "stdout",
95+
"text": [
96+
"Tue May 14 17:42:50 2013 profile_dump\n",
97+
"\n",
98+
" 51403 function calls in 0.028 seconds\n",
99+
"\n",
100+
" Ordered by: internal time\n",
101+
"\n",
102+
" ncalls tottime percall cumtime percall filename:lineno(function)\n",
103+
" 100 0.020 0.000 0.024 0.000 profile_example.py:11(odd_numbers)\n",
104+
" 51200 0.005 0.000 0.005 0.000 {method 'append' of 'list' objects}\n",
105+
" 100 0.003 0.000 0.028 0.000 profile_example.py:19(sum_odd_numbers)\n",
106+
" 1 0.001 0.001 0.028 0.028 profile_example.py:28(main)\n",
107+
" 1 0.000 0.000 0.028 0.028 profile_example.py:9(<module>)\n",
108+
" 1 0.000 0.000 0.000 0.000 {method 'disable' of '_lsprof.Profiler' objects}\n",
109+
"\n",
110+
"\n"
111+
]
112+
},
113+
{
114+
"output_type": "pyout",
115+
"prompt_number": 6,
116+
"text": [
117+
"<pstats.Stats instance at 0x1c50300>"
118+
]
119+
}
120+
],
121+
"prompt_number": 6
122+
},
123+
{
124+
"cell_type": "code",
125+
"collapsed": false,
126+
"input": [],
127+
"language": "python",
128+
"metadata": {},
129+
"outputs": []
130+
}
131+
],
132+
"metadata": {}
133+
}
134+
]
135+
}

‎week-08/presentation-week08.tex‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -209,7 +209,7 @@ \section{Profiling}
209209
{\Large The python profiler}
210210

211211
\begin{verbatim}
212-
python -m cProfile profile_example.py
212+
python -m cProfile -o profile_dump profile_example.py
213213
\end{verbatim}
214214
{\Large spews some stats}
215215

@@ -465,7 +465,7 @@ \section{Performance Tuning}
465465
{\small \url{http://pysnippet.blogspot.com/2009/12/profiling-your-python-code.html} }
466466

467467
\item run cprofile on your code:\\
468-
any surprizes?
468+
any surprises?
469469
\end{itemize}
470470

471471
\end{frame}

0 commit comments

Comments
 (0)