Florian Kiersch posted on Google+ an interesting screen shot of debugging the Google search results page.
The debug log seems to be about timing how long it takes some information to show up in the search results. It shows information about the "knowledge panel," "rich snippets," "hosted mobile search," "social," "shopping," "local," "universal" and so much more. Everything seems to be documented in milliseconds and even show ads and more.
Here is a screen shot, click on it to enlarge:
#Google #Search Hit it with a stick and you'll get something nice in return. Apparently I hit it a bit too hard, so that the layout looks slightly #@$$# up.
Anyway, looks like I found something new to play around with ;)
Pedro, a former Googler, said on Google+:
That's not a Search Debug, it looks like some performance measurement on the page and stuff that loads with it... I worked with Search Debug at Google and I tell you, it looks way more interesting than that...
The screenshot shows go/gws-vm-resource-monitor, so I would assume, this "debug information plugin" is only a small part of a full toolset.
Alex also covered Florian's post.
Forum discussion at Google+.