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From "Dave Brondsema" <brond...@users.sf.net>
Subject [allura:tickets] Re: #6388 Deep trace of single pageload
Date Thu, 19 Dec 2013 18:19:28 GMT
`Neighborhood.query.get` is all over the place.  For example in a discussion thread, each post
calls `User.icon_url` which calls `private_project` which uses `self.neighborhood` but even
though that is a `LazyProperty` it is instance-level so doesn't get re-used much.  There are
many other places too.

We could have a general purpose Neighborhood cache system and use it in lots of places.  Some
tests might not want it to be cached though.  Another even generalized possibility is to extend
Ming's identity map.  It currently indexes objects by `_id` only, but we could make it do
lookups by any unique key(s) for a given model (e.g. `url_prefix` for `Neighborhood`).


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** [tickets:#6388] Deep trace of single pageload**

**Status:** in-progress
**Labels:** performance 
**Created:** Mon Jun 24, 2013 04:38 PM UTC by Dave Brondsema
**Last Updated:** Mon Dec 16, 2013 11:07 PM UTC
**Owner:** Dave Brondsema

Let's do a trace (e.g. start with TimerMiddleware verbose mode to get every pymongo call;
maybe try `line_profiler` later) of common functionality to every page.  Focus on just the
core parts of allura, not looking into the specifics of whatever page you're on.  Might be
helpful to test hitting an external link URL, so there's not much tool-specific going on,
just core route handling, project/tool lookup, permission checks, etc.  Identify opportunities
for improvement.


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