Matthew Dillon wrote:
In all three cases the emulated hardware -- disk and network basically, devolves down into calling read() or write() or the real-kernel equivalent. A hypervisor has the most work to do since it is trying to emulate a hardware interface (adding another layer). XEN has less work to do as it is really not trying to emulate hardware. A vkernel has even less work to do because it is running as a userland program and can simply make the appropriate system call to implement the back-end.
And jails and similar have the absolute minimum.. at the cost of making a single accessible point of failure (the one kernel). _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"