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 ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ kvm-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/kvm-devel
