"When people contract out for police services, are they paying more for the extra overhead than if they just added money to the public police budget?"

There would have been taxes, of course, and some extra overhead we hadn't figured in, but he was getting there.

Even so, any extra overhead is hardly noticeable.

Why do we need the extra overhead of virtualization to do this?

Nested virtualization has extra overhead, so running z/VM as a guest is primarily used only for testing purposes.

Rolling out hedge funds lets fund companies employ their core strengths without much extra overhead.

This allows the space to be used for temporary data without the extra overhead of modifying the stack pointer.

However, if the function is relatively simple, then the extra overhead of the Schwartzian transform may be unwarranted.

Bicubic, tricubic, etc., interpolation is used as well, but is probably not worth the extra computational overhead.

The extra overhead that can be associated with using multiple processors can eat into the potential speedup of parallelized code.