Those slides are incredibly dense and it's a little difficult to tell exactly what they mean. The OP's twitter stream has some good info though:<p>"facebook is carving out entire chunks from InnoDB to scale up concurrency: no deadlock detection, no read-ahead.."
<a href="http://twitter.com/igrigorik/status/12117662626" rel="nofollow">http://twitter.com/igrigorik/status/12117662626</a><p>"myisam has single mutex, will fall down after 3+ cores try to access it concurrently. stick with innnodb"
<a href="http://twitter.com/igrigorik/status/12116958816" rel="nofollow">http://twitter.com/igrigorik/status/12116958816</a>