> 1. if low_latency flag isn't set we don't care about hardware latency. > 2. if we're in canonical mode, assume theres a human on the other end. > 3. VTIME only applies in non-canonical mode. > 4. Any VTIME value greater than 0 corresponds to at least 100 ms, so we > don't care about low hardware latency.
And your heuristic is wrong for ppp on slower boxes. > tty flip buffer contents are processed after receiving data. In > low-latency mode the contents are processed immediately, but in > normal-latency mode a task was scheduled to process the contents. At The former can cause problems on slower boxes because the processing is done at IRQ level. > high receive rates, this could result in data being thrown away because > the flip buffer hadn't flipped yet. Flip buffers are history in 2.6-mm so that aspect is done and buried ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
