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-Today I assisted to two tech. talks. One of them was our "Reading Group"
-session at lunch and the second one was the Python meetup tonight.
-
-** Say's tech talk
-
-I'm trying to organize at [[http://saymedia.com][work]], every two weeks
-during lunch time, a session where engineers can discuss about an
-article, tool, or paper they find interesting. Today we were a very
-small group (only 4 peoples), and we talked about two tools that
-[[http://sekimura.typepad.com/blog/][Masa]] wanted to explore:
-[[https://github.com/cookpad/kage][Kage]] and
-[[http://www.igvita.com/2012/08/28/web-performance-power-tool-http-archive-har/][HTTP
-Archive]].
-
-*** Kage
-
-We talked about Kage first (kah-geh means "shadow" in Japanese). Masa
-started to explain what was the goal of the tool and how it works.
-Basically, it's a proxy that will send your HTTP request to your
-production and stage environment. The basic
-[[https://github.com/cookpad/kage/blob/master/examples/proxy.rb][example]]
-show how easy it is to write a simple proxy with a few rules to dispatch
-only your GET request to your two environments, and then compare the
-payload returned.
-
-It's using [[https://github.com/igrigorik/em-proxy/][em-proxy]] which is
-a DSL to write proxy for EventMachine. We then discussed where we could
-use it in our architecture and what benefit we could get from it, but
-for now we don't have any plan to use it.
-
-*** HAR
-
-Then the second thing we talked about what HAR. You can find more
-detailed information on
-[[http://www.igvita.com/2012/08/28/web-performance-power-tool-http-archive-har/][Ilya's
-blog]] and on this [[https://gist.github.com/3500508][gist]]. To
-summarize, HAR is an HTTP archive
-[[http://www.softwareishard.com/blog/har-12-spec/][format]]. When you
-use the developers tools in Chrome, you can see the request and their
-response time, but you can also save this information in the HAR format.
-
-There's a few tools then to analyse this data, like YSlow, or browse
-them with the HARviewer. Another interesting thing is that you don't
-have to use a browser to get them, you can use
-[[http://phantomjs.org][Phantomjs]]. Masa and Kyle talked about it and
-if they could use that with Nagios, or with Jenkins to measure the
-response time.
-
-** SF Python Meetup
-
-The last talk of the day was the [[http://www.meetup.com/sfpython/][SF
-Python Meetup]] after a 4 or 5 months break, at the Yelp headquarter. We
-were supposed to have some lightning talks to start, but we only had
-one, from someone who think that "lightning talk" means "publicity for
-Google and ho by the way, we're hiring" (yeah like no one in the room
-knew that ...).
-
-Then David Schachter presented
-[[http://www.rtortell.com/SF_Python_Meetup_slides_public.pdf][How to
-Speed Up A Python Program 114,000 times]]. He showed us how he improved
-the performance of a script by 114,000 times. I will start by saying the
-talk was interesting and that David was an entertaining speaker. He went
-through some optimization he used, like using multiprocessing modules,
-[[http://cython.org][cython]], and some more difficult optimization he
-was not able to get from cython (like the permuted vector code).
-
-He had a very strong opinion about cluster and I really disagree with
-him. One of his complains was that cluster are hard, are young, and we
-don't have any tools, so we should not use them. But we've been using
-cluster in universities and laboratories for years now. Even if the
-tools are still not very great, they exist, and they work. And more
-importantly to me, the fact that he spend 12 weeks on optimizing his
-program, and doing stuff that I would not be able to do, he proved that
-optimizing is /also/ very hard, and that doesn't seem easier to me that
-using a cluster.
-
-All in all, that was a good day, and I learned new things. Now I need to
-find a subject for our next reading group session.