Re: 2.6 vs 2.4, ssh terminal slowdown

[Lee Revell <rlrevell@joe-job.com>]

On Wed, 2006-02-08 at 14:00 +1100, Con Kolivas 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.
> 

Hmm, I've been having a similar problem for ages.  If I just do "ls" in
my home directory 10 or 20 times, approximately 20% of the time it's
"fast":

real    0m0.177s
user    0m0.028s
sys     0m0.027s

And the rest of the times it's "slow":

real    0m1.240s
user    0m0.036s
sys     0m0.040s

I rarely get anything in between - it's either ~1.2s or ~0.2s.

"time ls | cat" is always fast - 0.18 - 0.35s.

real    0m0.188s
user    0m0.014s
sys     0m0.018s

It has been this way as long as I can remember and it never made
sense...

Lee