From: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Date: Mon, 17 Nov 2008 11:48:33 -0800 (PST) > We've asked _you_ to do NMI profiling, it shouldn't be the other way > around. I wasn't able to on these systems, so instead I did cycle level evaluation of the parts that have to run with interrupts disabled. And as a result I found that wake_up() is now 4 times slower than it was in 2.6.22, I even analyzed this for every single kernel release till now. It could be a sparc specific issue, because the call chain is deeper and we eat a lot more register window spills onto the stack. -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
