I noticed today on my google sitemap page that there is a new feature. Google now has a crawl rate page. Pretty interesting as it shows you how much work they do on your site in their eyes.
I see there is also a future feature that is not turned on yet. You will be able to tell google to crawl your site less, more or the same. I can't wait for that one. I am sure every one will turn it to fast on day one and shut down their servers. I presume they will turn it on in for some customers before others as they test it. Another eternal beta for google.
Visit your Google sitemap page.