Current Operating Systems May Only Make Sense Up To 48 Cores

“The MIT researchers found that the separate cores were spending so much time ratcheting the [memory] counter up and down that they weren’t getting nearly enough work done,” the report states. However, the researchers also found that “slightly rewriting the Linux code so that each core kept a local count, which was only occasionally synchronized with those of the other cores, greatly improved the system’s overall performance.”

http://www.conceivablytech.com/3166/science-research/current-operating-s... [via Slashdot]