Jeff Atwood has a post about making WordPress faster. This is a big concern for my blog, which several degrades at times, but for which I can get no performance data for the machine. He is hosting a new blog locally and measuring the CPU under Win2K8.
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For a bare-bones blog which is doing approximately nothing, this is a completely unacceptable result. It’s appalling.
As evidence of what a systemic problem this is, there’s an entire cottage industry built around shoehorning better caching behavior into WordPress. Take your pick: WP-Cache, WP-Super-Cache, or Bad Behavior. The caching add-ins don’t work very well under IIS because they assume they’re running on a *NIX platform, but they can be coerced into working.
Does it work? Does it ever. Here’s what CPU usage looks like with basic WP-Cache type functionality enabled:
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