Conrad Meyer d37872da34 ioatcontrol(8): Add support for interrupt coalescing
The new flag, -c <period>, sets the interrupt coalescing period in
microseconds through the new ioat(4) API ioat_set_interrupt_coalesce().

Also add a -z flag to zero ioat statistics before tests, to make it easy
to measure results.

Sponsored by:	EMC / Isilon Storage Division
2015-12-14 22:02:01 +00:00
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