> randomly slows down

That's probably the garbage collector in python running, if you want more 
predictable slowdowns, you can call the collector manually...

On Tuesday, September 24, 2013 1:23:52 PM UTC-7, Saurabh Kumar wrote:
>
> My website some times randomly slows down and recovers on its own. I used 
> a profiler to profile one of the controllers  and found out that 
> /usr/lib/python2.7/socket.py:336(read) is being called 12704 times taking 
> 14.5 seconds. What could be the possible problem to cause this?
>
> root@dev:/profile_dumps# python check_Stats.py chat-20130924T201149.prof
>          660623 function calls (648153 primitive calls) in 22.573 seconds
>
>    Ordered by: internal time, call count
>    List reduced from 184 to 20 due to restriction <20>
>
>    ncalls  tottime  percall  cumtime  percall filename:lineno(function)
>     12704   14.564    0.001   14.564    0.001 
> /usr/lib/python2.7/socket.py:336(read)
>      6352    1.579    0.000   16.289    0.003 
> /home/www-data/web2py/gluon/contrib/pymysql/connections.py:215(__recv_packet)
>       313    1.000    0.003    1.000    0.003 
> /usr/lib/python2.7/socket.py:292(flush)
>     94803    0.797    0.000    1.668    0.000 
> /home/www-data/web2py/gluon/contrib/pymysql/connections.py:238(read)
>       301    0.593    0.002    1.079    0.004 
> /home/www-data/web2py/gluon/dal.py:2005(parse)
>    104734    0.525    0.000    0.525    0.000 
> /home/www-data/web2py/gluon/contrib/pymysql/connections.py:253(advance)
>     94803    0.427    0.000    0.427    0.000 
> /home/www-data/web2py/gluon/contrib/pymysql/connections.py:267(peek)
>     59543    0.413    0.000    0.413    0.000 
> /home/www-data/web2py/gluon/contrib/pymysql/util.py:3(byte2int)
>      4965    0.311    0.000    2.412    0.000 
> /home/www-data/web2py/gluon/contrib/pymysql/connections.py:358(__parse_field_descriptor)
>     34897    0.219    0.000    1.157    0.000 
> /home/www-data/web2py/gluon/contrib/pymysql/connections.py:291(read_length_coded_binary)
>     34895    0.195    0.000    1.923    0.000 
> /home/www-data/web2py/gluon/contrib/pymysql/connections.py:310(read_length_coded_string)
>       301    0.154    0.001    0.350    0.001 
> /home/www-data/web2py/gluon/dal.py:1500(_select)
>      8696    0.120    0.000    0.120    0.000 
> /home/www-data/web2py/gluon/dal.py:9896(__init__)
>     14229    0.100    0.000    0.100    0.000 
> /home/www-data/web2py/gluon/dal.py:6756(__setitem__)
> 11101/572    0.099    0.000   19.258    0.034 
> /home/www-data/web2py/gluon/dal.py:8247(__getitem__)
> 10889/10233    0.090    0.000    0.101    0.000 
> /home/www-data/web2py/gluon/dal.py:1347(expand)
>       301    0.079    0.000   22.242    0.074 
> /home/www-data/web2py/gluon/dal.py:9763(select)
>      5094    0.075    0.000    0.091    0.000 
> /home/www-data/web2py/gluon/dal.py:1862(parse_value)
>      6352    0.073    0.000   16.362    0.003 
> /home/www-data/web2py/gluon/contrib/pymysql/connections.py:210(__init__)
>      4965    0.070    0.000   14.483    0.003 
> /home/www-data/web2py/gluon/contrib/pymysql/connections.py:354(__init__)
>

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