Re: [SLE] Has The performance been forgotten?

On Friday 01 October 2004 04:00 pm, Randall R Schulz wrote:
> Hi,
>
> On Friday 01 October 2004 15:29, Pieter Hulshoff wrote:
> > On Saturday 02 October 2004 00:20, Bahram Alinezhad wrote:
> > > If we continue to defend disadvantages with prejudice
> > > or dogma, we'll have never improvements.
> >
> > I agree. :)
> >

> As I understand this option, it increases the rate of some periodic kernel
> actions such as process scheduling to produce a more responsive feel for
> interactive operation. I'm not sure I remember this correctly, but I
> think it produces a ten-fold reduction in the CPU scheduling quantum (or,
> viewed the other way around, ten times more potential reschedulings per
> second). For a processor such as Bahram's "Ultra high speed CPU" (an AMD
> K6 at 550 MHz) that could account for a good bit of overhead when viewed
> as a percentage of available CPU cycles.
>
>
> Bahram, you can easily experiment with this by rebooting and during the
> splash-screen countdown, use the keyboard to navigate to the options text
> field and erase the "desktop" option shown there. (Note, too, that doing
> this will interrupt the countdown and you'll have to hit return to allow
> the boot process to continue.)
>
> > Regards,

My machine is not much faster than what Bahram reported and
I was wondering why it was so slow lately.  Your post reminded me
to check, and sure enough DESKTOP was missing from the boot
line in /boot/grub/menu.lst  
I added it back in and the machine is way more responsive.  Thanks.

From my long ago reading of Linus's emailings on this subject he did
not see any advantage to this option on his "ridiculous hardware" 
(quad processor) but saw much improvement on slower boxes.

But my results show everything you do on the desktop to be
much snappier with desktop on than with it off.

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John Andersen