On Tue, Mar 25, 2003 at 10:45:02AM +0100, Benjamin Herrenschmidt wrote:
> I also think we could actually be smarter and only
> soft-disable IRQs with a flag in the descriptor, and hard disable
> them if and only if they actually occur while disabled.
yup. minimizing open_pic I/O could be a big win. the fact that
the PIC shows up _way_ ahead of the network driver and stack is
pretty freakish compared to a profile on x86 using io-apic
(the legacy x86 pic has similar but less severe issues as open_pic).
-Bryan
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Mon Mar 31 2003 - 22:00:22 EST