From: William Lee Irwin III <wli@holomorphy.com>
To: Russell King <rmk@arm.linux.org.uk>, linux-kernel@vger.kernel.org
Subject: Re: Serial: updated serial drivers
Date: Mon, 15 Jul 2002 04:01:35 -0700 [thread overview]
Message-ID: <20020715110135.GI21551@holomorphy.com> (raw)
In-Reply-To: <20020715100310.GF23693@holomorphy.com>
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.
Cheers,
Bill
next prev parent reply other threads:[~2002-07-15 10:59 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-07 0:00 Serial: updated serial drivers Russell King
2002-07-07 10:01 ` Miquel van Smoorenburg
2002-07-15 10:03 ` William Lee Irwin III
2002-07-15 11:01 ` William Lee Irwin III [this message]
2002-07-15 11:24 ` Russell King
2002-07-15 18:17 ` William Lee Irwin III
2002-07-15 14:25 ` Dave Hansen
-- strict thread matches above, loose matches on Subject: below --
2002-07-07 14:15 Marko Kohtala
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