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SubjectRe: Serial: updated serial drivers
On Sun, Jul 07, 2002 at 01:00:09AM +0100, Russell King wrote:
>> I've been maintaining a serial driver "off the side" of the ARM port
>> which cleans up the serial driver mess that we currently have, with
>> many duplications of serial.c, each with subtle bugs.

On Mon, Jul 15, 2002 at 03:03:10AM -0700, William Lee Irwin III wrote:
> global_cli() overhead on my testbox is a significant problem.
> Profile info from tbench 1024 with ttyS0 as stdout, taken on a 16 cpu
> i386 box with 16GB of RAM and irqbalance disabled, (needed to boot):

the profiling results were for a kernel without the new serial stuff.
The new serial stuff appears to need some arch compatibility auditing/
fixes for NUMA-Q.

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