http://fah-web.stanford.edu/cgi-bin/main.py?qtype=cpustats
OS Type Current TFLOPS* Active CPUs Total CPUs
Windows 152 159620 1625732
Mac OS X/PowerPC 7 8742 95382
Mac OS X/Intel 9 2776 7292
Linux 43 25145 215929
GPU 42 716 2204
PLAYSTATIONR3 543 22147 23540
Total 796 219146 1970079