linux-kernel - Re: [bisected] pty performance problem

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Message-ID: <20091122122312.71a343d9@lxorguk.ukuu.org.uk>
Date:	Sun, 22 Nov 2009 12:23:12 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Robert Swan <swan.r.l@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [bisected] pty performance problem

On Sun, 22 Nov 2009 07:39:26 +0100
Ingo Molnar <mingo@...e.hu> wrote:

> 
> (Cc:-ed Alan and Linus - mail repeated below. eot.)

I saw it and replied already. The kernel now queues the work for the pty
as it does normal tty devices. If the CPU load is that low and nothing
else is happening it makes me wonder what the scheduler thinks it is
doing ?

Alan
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