Simpy Chichimichi

Friday, 12 October 2007

Snappy Simpy

As readers of this blog know, Simpy has been around for years (open to public since May 2004, to be more precise). Over the years I've shared information about Simpy's technical ups and downs via this blog. Here are some references:

After running Simpy for over three years without making any major hardware upgrades, I thought I exhausted pretty much all optimization tricks from my (thin) optimizations book. However, the other day I got an idea for such a simple yet effective optimization, I couldn't believe my three braincells. Yesterday afternoon I implemented it and pushed to production after some testing. It run smoothly all night, and this morning I looked at the results, which I'm including below:

As you can see, the 63-line (including empty lines, comments, etc.) piece of code shaved off...how much is that? It looks like 200-300 milliseconds per request, or about 20-30% improvement in response/performance.

Here is another service's look at the performance increase:

The efficiency ideas came bundled with a new other ideas for several nice, yet relatively easy to implement features, so I'll try to get those done in the coming days and weeks.

Posted by otis at 1:04 PM in News & Announcements

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