Hi Grant,
On Wed, Feb 08, 2006 at 03:51:24PM +1100, Grant Coady wrote:
> On Wed, 8 Feb 2006 14:00:59 +1100, Con Kolivas <[email protected]> wrote:
>
> >This is the terminal's fault. xterm et al use an algorithm to determine how
> >fast your machine is and decide whether to jump scroll or smooth scroll. This
> >algorithm is basically broken with the 2.6 scheduler and it decides to mostly
> >smooth scroll.
>
> Strange it does that over localnet to a PuTTY terminal on windoze.
>
> Seems a strange thing to do in the kernel though, presentation
> buffering / management surely can be done in userspace?
I suspect the sshd on the firewall gets woken up for each line and it
behaves exactly like an xterm. After having done a lot of "ls -l|cat"
on 2.6, I'm not surprized at all :-/
A good test would be to strace sshd under 2.4 and 2.6. You could even
use strace -tt. Probably that you will see something like 1 ms between
two reads on 2.6 and nearly nothing between them in 2.4.
> Grant.
Cheers,
Willy
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