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From "Dave Brondsema" <brond...@users.sf.net>
Subject [allura:tickets] #6388 Deep trace of single pageload
Date Mon, 09 Dec 2013 18:08:04 GMT
Based on New Relic "xray sessions", potential candidates to investigate more are:

* controllers/root.py `Neighborhood.query.get`: 11% of avg _nav.json request.  Time spent
is all in mongo.  Cache it for a while?
* model/project.py `install_anchored_tools`: 15% of avg _nav.json request.  Most of tim spent
is in mongo.  Seems to be the `self.app_configs` property load?
* lib/security.py `obj.neighborhood_project`: 7.3% of avg _nav.json request.  Cache it for
a while?
* post_thread/post_widget.html has repeated sequential calls to `Artifact.refs` taking 13%
of avg ticket view, backrefs (5.2%), user icon_url which is already memozied (8.4%)


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

**Status:** open
**Labels:** performance 
**Created:** Mon Jun 24, 2013 04:38 PM UTC by Dave Brondsema
**Last Updated:** Tue Dec 03, 2013 06:05 PM UTC
**Owner:** nobody

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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