我的燒瓶應用程序突然變爲非常非常慢過去一個月,我不知道什麼變化提高了從1s以下的響應時間到30秒。分析和查找燒瓶應用程序的瓶頸---當前響應時間爲30秒
我一直在使用Flask和MongoEngine,Redis也用於緩存。 MongoDB與Flask應用程序放在同一臺服務器上。
我試圖剖析燒瓶中,這裏是報告:
127.0.0.1 - - [17/Feb/2014 19:51:47] "GET/HTTP/1.0" 200 -
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PATH: '/items'
637497 function calls (618866 primitive calls) in 30.961 seconds
Ordered by: internal time, call count
List reduced from 702 to 30 due to restriction <30>
ncalls tottime percall cumtime percall filename:lineno(function)
153 30.127 0.197 30.127 0.197 {method 'recv' of '_socket.socket' objects}
319965 0.150 0.000 0.150 0.000 {isinstance}
1322/740 0.079 0.000 0.178 0.000 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/dereference.py:147(_attach_objects)
77 0.079 0.001 0.079 0.001 {method 'sendall' of '_socket.socket' objects}
1322/740 0.077 0.000 0.159 0.000 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/dereference.py:68(_find_references)
54670 0.046 0.000 0.046 0.000 {hasattr}
774/80 0.032 0.000 0.207 0.003 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/base/document.py:539(_from_son)
774 0.031 0.000 0.119 0.000 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/base/document.py:35(__init__)
12932/12792 0.028 0.000 0.057 0.000 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/base/document.py:113(__setattr__)
15557 0.016 0.000 0.020 0.000 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/common.py:4(_import_class)
46648 0.016 0.000 0.016 0.000 {method 'get' of 'dict' objects}
8228 0.015 0.000 0.029 0.000 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/base/fields.py:94(__set__)
1532/287 0.012 0.000 0.161 0.001 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/base/fields.py:233(to_python)
11901 0.012 0.000 0.061 0.000 {setattr}
8960 0.010 0.000 0.010 0.000 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/base/document.py:547(<genexpr>)
15629/5700 0.010 0.000 0.022 0.000 /usr/lib/python2.7/json/encoder.py:335(_iterencode_dict)
3328/3207 0.009 0.000 0.019 0.000 /usr/lib/python2.7/copy.py:145(deepcopy)
685/61 0.008 0.000 0.032 0.001 /home/deploy/shopping/env/local/lib/python2.7/site-packages/pymongo/cursor.py:843(__deepcopy)
3660 0.008 0.000 0.024 0.000 /usr/lib/python2.7/copy.py:66(copy)
10295/5668 0.008 0.000 0.019 0.000 /usr/lib/python2.7/json/encoder.py:282(_iterencode_list)
424 0.007 0.000 0.361 0.001 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/base/fields.py:189(__get__)
740 0.007 0.000 0.348 0.000 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/dereference.py:12(__call__)
660 0.006 0.000 0.008 0.000 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/base/datastructures.py:15(__init__)
72 0.005 0.000 0.007 0.000 {bson._cbson.decode_all}
183 0.005 0.000 0.034 0.000 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/queryset/base.py:533(clone_into)
241 0.005 0.000 0.023 0.000 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/queryset/transform.py:31(query)
694 0.005 0.000 0.114 0.000 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/document.py:64(__init__)
900 0.004 0.000 0.004 0.000 {sorted}
5388/5387 0.004 0.000 0.007 0.000 {getattr}
5940 0.004 0.000 0.004 0.000 /home/deploy/shopping/env/lib/python2.7/site-packages/mongoengine/fields.py:241(to_python)
任何人都可以點我的方向尋找瓶頸,或更有幫助的分析方法是什麼?
http://docs.mongodb.org/manual/tutorial/manage-the-database-profiler/用於mongodb查詢分析。 – Ross
你也可以採取[*一個stackshot *](http://stackoverflow.com/a/4299378/23771),它會告訴你一切要知道什麼是花時間(29/30 = 97 %概率)。 –