I was wondering what would happen to WordPress when I had a day where I pulled in a lot of folks, and yesterday was that day; Whatever pulled in 72K folks, which made it the second busiest day on the site (The Bacon Cat incident still holds top honors, with 76k in one day). And what happened to WordPress, when presented with an outsized bolus of traffic? Nothing at all, which I find encouraging; never once did the site hiccup, all day long. Since one of my main concerns switching over to WordPress was that dynamically generating pages would present a problem, it’s nice to see that I was wrong. I’m sure it helps that I have wp-cache running on the site, so that the database isn’t hit every single time.
So: I’m officially sold on WordPress. I’m sure that makes someone happy somewhere.
That said, a question for you WordPress geeks: Would turning on wp-cache cause underreporting on unique visitors in any way? I have a suspicion, given the size of my raw log file relative to its size on an average day around here, that 72k unique visitors on the day is actually low (my log file was about 10 times normal size, whereas unique visitors was only about twice recent traffic). Any thoughts on this?