Isolating Performance Issues
Over on the mtos-dev mailing list, David Jacobs notes a post from one of the Tumblr developers about a bug in MySQL’s InnoDB engine severely impacting peformance and goes on to say:
It just goes to show how difficult to isolate performance issues are. In addition to the web server, templates, third party plugins, etc. Sometimes you hit an unforeseen bug in something completely external.
True.
We’ve been discussing performance on the list a lot on mtos-dev since it’s the primary focus of MT 4.2. Web applications of any complexity are exponentially more complex than the desktop software I started writing at the start of my career. Web applications like MT are made of dozens of individual pieces of software with different developers, milestones and objectives. The number of combinations and configurations are virtually infinite and in constant change that testing and debugging issues is quite a challenge. It’s the price we pay for the distributed nature of the Internet where so many small pieces are loosely joined.
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