Avi Kivity wrote:
I estimate that that take_cpu_down will run for about a millisecond if there are a few hundred vcpus which have last run on the dying cpu (and that's an extreme case, which is not expected in normal operation).
I measured vmclear time on an uncached vmcs (which would be all except for a handful which are cached on the cpu core) at 144 cycles. Assuming a couple of cache misses for walking the list and accessing the vmcs, we're at about 500 cycles per vcpu, or 250us @ 2GHz. So worst case is significantly less than 1 ms.
Is this acceptable for take_cpu_down()? -- error compiling committee.c: too many arguments to function - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
