Seems like a lot of effort and risk to essentially only optimize in kernel interrupt handlers.
AFAIK the most interesting cases (like user page faults) are not affected at all. Usually most workloads don't spend all that much time in the kernel, so it won't help most interrupts. I suspect the only case that's really interesting here is interrupting idle. Maybe it would be possible to do some fast path in this case only. However idle currently has so much overhead that I suspect that there are lower hanging fruit elsewhere. -Andi -- a...@linux.intel.com -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
