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From: Christopher Pascoe (pascoeopenbsd.org)
Date: Sun Apr 08 2007 - 04:27:14 CDT
> Changes by: pascoecvs.openbsd.org 2007/04/08 03:05:48
> Modified files:
> sys/dev/pci : ahci.c
> Log message:
> Add compile-time support for coalescing command interrupts to reduce the
> overall interrupt rate.
> #define AHCI_COALESCE to enable.
Enabling this doesn't seem to change the number of interrupts/second that
I see on a single disk. Interested to hear if anyone with more than one
disk notices a reduction under heavy load.