I've been running VM more off than on since PLC 5 and I'm certain that the behavior that I referenced WAS in VM... at some point. But if you & Lynn Wheeler say it isn't there now, I'll believe you (unless/until I can prove you wrong, of course). But I know back in the VM/HPO or (maybe) early VM/XA days it was true that VM put itself into a tiny loop while it waited for work. The loop was in a unique-to-VM PSW key so that the hardware monitor (the "speedometer") could tell the difference between work and wait. Or am I the only person who "remembers" that? -- Tom Schmidt
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