Web2py should avoid connecting to database when not needed AKA lazy_connection. Sometimes ago, I proposed a patch that worked great with Postgresql, but did not get into trunk. The performance increase is noticeable in use cases such as Michael's. I will eventually try a PR again when I will have time.
@Michael follow Niphlod advice and also look for conditional models in the book. Another technique is putting all the DAL modelling in one function inside a model and execute that conditionally. e.g. db = None def setup_dal(): db = DAL(...) db.define_table(...) db.define_table(...) return db if request.controller!='<the frequent ajax controller> and request.action!='<the frequent ajax action>': db = setup_dal() 2014-02-13 20:49 GMT+01:00 Niphlod <[email protected]>: > migrate=False still instantiate the model....it just doesn't trigger any > migration logic. > the better shot at minimizing times in this case seems to be > lazy_tables=True > > > On Thursday, February 13, 2014 8:38:46 PM UTC+1, Michael Ellis wrote: >> >> >>> >>> On Wednesday, February 12, 2014 5:17:02 PM UTC-5, Michele Comitini wrote: >>>> >>>> run the profiler on the board: >>>> >>>> Thanks Michelle, those are good tools. They show that my ajax function >> accounts for only 2.6% of the time spent. The rest is web2py overhead, >> especially dal.define_table(), despite the fact that I have migrate set to >> False. My ajax function does no db access, so I'm wondering if there's a >> way to tell web2py to skip the db stuff and just run the function and >> render the output. >> >> If not, I suppose I'm going to have to find a way to go around web2py and >> make client-side reads directly from ZeroMQ sockets that are already >> running outside web2py. That sounds fragile and messy, so hope there's >> another answer. >> >> >> >> -- > Resources: > - http://web2py.com > - http://web2py.com/book (Documentation) > - http://github.com/web2py/web2py (Source code) > - https://code.google.com/p/web2py/issues/list (Report Issues) > --- > You received this message because you are subscribed to the Google Groups > "web2py-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
