>>> On 11/12/2008 at  4:33 PM, Hal Merritt <[EMAIL PROTECTED]> wrote: 
> Wouldn't a specialty engine be excluded from the normal load sharing? By
> dispatching only its designated work and excluding other stuff (such as
> I/O interrupts) it ought to accomplish more of the targeted work than a
> general purpose engine. Is that reasonable? 

In the case of IFLs, all those things are run on the IFL.  For zIIPs and zAAPs, 
that's a different story.  Ed's right.  There is one and only one instruction 
that is disabled on an IFL.  Everything else is identical to a standard engine.


Mark Post

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