Date: Mon, 23 Nov 2009 11:59:49 +0000
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>, Robert Swan <swan.r.l@gmail.com>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       linux-kernel@vger.kernel.org
Subject: Re: [bisected] pty performance problem
Message-ID: <20091123115949.29bcf89d@lxorguk.ukuu.org.uk>
In-Reply-To: <20091123114845.GC25575@elte.hu>
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	<20091122122312.71a343d9@lxorguk.ukuu.org.uk>
	<1258952431.6261.38.camel@marge.simson.net>
	<20091123113110.15063a0a@lxorguk.ukuu.org.uk>
	<20091123114845.GC25575@elte.hu>
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> > Another possibility is to do
> > 
> > 	if (tty->low_latency)
> > 		schedule_delayed_work(&tty->buf.work, 0);
> > 	else
> > 		schedule_delayed_work(&tty->buf.work, 1);
> 
> Flaggery for low latency is kind of lame though - especially if it 
> defaults to off in most drivers as you say.

So you'd prefer to detect devices that are byte based or message based by
what method ?

Alan
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