Re: xterm scrolling speed - scheduling weirdness in 2.6 ?!

[venom]

On Sun, 4 Jan 2004, Soeren Sonnenburg wrote:

> > out of interest, have you tried to see how 2.4.xx compares when compiled
> > with HZ set to 1000?
> > (or conversely, 2.6 compiled with HZ set to 100)
>
> assuming you mean changing the HZ value in include/param.h to 1000/100
> yes 2.4 with HZ=1000 is fine and 2.6 with HZ=100 still #%$@$^&!!
>
mmhhh! depends...

On a DB that has to write often big, long data streams HZ=100 on a 2.6.0 kernel
allows a better performance instead of HZ=1000 (no kernel preemption).

on a DB that has to read often small, short data streams HZ=1000 is better than
HZ=100 with a 2.6.0 kernel.

Luigi



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