David Mansfield <lkml@dm.cobite.com> wrote:
>
>
> Hi list.
>
> After all of the rave reviews about the interactivity fixes (both regular
> and I/O scheduler related), I decided to give the 2.5.latest a try on my
> desktop machine (system described below)
>
> I started X, everything seemed fine, maybe a bit faster. I opened a
> 'gnome-terminal' and typed 'ls -ltr'. Wow, it was 20x slower.
>
> Here are the timings for 'ls -ltr':
>
> 2.5.66-mm1: 'ls -ltr' 31 seconds
> 2.5.66-mm1: 'ls -ltr | cat' 2 seconds
> 2.4.18-rhlatest: 'ls -ltr' 1.14 seconds
How many files were there?
My /usr/bin contains 3168 files. An `ls -ltr' in gnome-terminal takes 9.6
seconds. In rxvt it takes 0.5 seconds. That's an 850MHz P3.
So gnome-terminal appears to be a pretty slow application. My guess would be
that something in the 2.5 kernel has exposed a marginality or an outright
bug in it.
It would be interesting to edit include/asm-i386/param.h and set HZ to 100.
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This archive was generated by hypermail 2b29 : Mon Mar 31 2003 - 22:00:33 EST