Next try: is DTrace (particularly FBT) expected to work on NetBSD/xen? I'm struggling to get some grasp on why I/O to SCSI disks uses *25X* more CPU in "interrupt" time on the same system under NetBSD/xen than under NetBSD/amd64. Kernel profiling clearly does not work, so I'm hoping to get somewhere with DTrace even if I have to do much of what gprof would do for me by hand.
This is -- among other things -- crippling the Foundation's pkgsrc build server. So I could use some help, if anyone's got it to give. Thor