That's why I put a cache in front of my blog. The cache is only invalidated when the content of the article changes, or a comment is added. Works really great

That's why I put a cache in front of my blog. The cache is only invalidated when the content of the article changes, or a comment is added. Works really great, page requests take about 10 msec cached, 200 msec uncached (on a shared hosting platform).