Arjen’s MySQL Community Journal – HyperThreading? Not on a MySQL server…

I blame the Linux Process Scheduler. At least it’s better than the earlier 2.6 days where things would get shunted a lot from one “cpu” to the other “cpu” for no real reason.

Newer kernel verisons are probably better… but don’t even think of HT and pre-2.6 – that would be funny.