Messages in this thread | | | Date | Mon, 23 Nov 2009 13:04:09 +0100 | From | Ingo Molnar <> | Subject | Re: [bisected] pty performance problem |
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* Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> > > 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 ?
I'd not delay the worklet by default - i.e. i'd do Mike's patch.
Havent tested all effects of it though - do you have any estimation about negative effects from such a change? We do have hard numbers (latencies in the millisecs range) from the opposite direction and those numbers arent pretty.
Ingo
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