🚀 go-pugleaf

Floyd Davidson <floyd@ptialaska.net> wrote in message news:<87of6w7ump.fld@barrow.com>...

> 
> A single cpu system might be faster *if* there is only one
> process running most of the time.  On the other hand, if there
> are 2 or more processes running a dual cpu system is going to be
> faster.  On my box the X server is always running, plus whatever
> else I'm doing.  Hence there is *never* a time when a single cpu
> would be as fast as a dual cpu system for my typical usage.
> 
> I'll grant that if you are not running X and work only on one
> virtual console at a time, one cpu will be just as fast as two.
> 
> >and nowadays, CPU is speeding up very fast. buying dual cpu isn't
> >really goood choice if you run it as a  home user.
> >when you upgrade, u have to fork out twice of the money of a single
> >upgrade. and dual motherboard is very rare and expensive. if you need
> >to change the motherboard to suit fast cpu, u need to fork out more.
> 
> The same is true of faster cpu's.  But there is probably a point
> where buying faster cpu's is less cost effective than buying a
> dual cpu motherboard.  That point is roughly where the speed of
> a dual board is about 1.5 times the fastest single cpu
> available.  Hence right now it is more cost effective to buy a
> dual cpu system running 1.8-2.5GHz than to, for example,
> purchase a 4Ghz single cpu system!  (Assuming of course that the
> cpu load is generally not just one process.)

1.5 times faster? i doubt that. maybe 10% of time it is 1.5 times
faster.

think it economically, your dollars spent on 2 CPUs and a dual
motherboard + those registered ram surely can buy a single cpu system
that is faster than your dual cpu system.
about the response time, today's fast cpu's isn't hte bottle neck.
actually it is usally the ram speed and IO speed that limit the
response.

and latest ram technology always comes to the single cpu mobo first.
but for dual cpu board, they are still in slow standard.

when upgrading, you will know how much more you have to spend on a
dual cpu system.