スケジューラ

先日の2007-01-06 - t-arakiの日記で書いた予想はうそだったみたい。http://eaglet.rain.com/rick/linux/staircase/scase-vs-noscase.htmlによると、暇なCPUが居るときは、常時load_balanceが呼ばれるそう。

When the processor is idle, load_balance() can be called every clock tick, or up to a thousand times per second, per processor. (If the processor is idle, why not go looking for jobs?) On a 8-processor system that was completely idle, then, you'd expect to see nearly 8000 calls per second.

というわけで、問題にはならなさそう。