[rescue] fastest Ultra 5 marketed by Sun?
md.benson at gmail.com
Sat Jul 21 17:57:11 CDT 2007
On 21 Jul 2007, at 21:55, Patrick Finnegan wrote:
> Oh and the PCI bus...
Because most hardware has to be Sun Authorized and supported
(graphics cards, disk controllers etc.), and Solaris is picky about
the generic stuff it supports on SPARCs, then having PCI isn't that
big an advantage unless you run Linux, which on a IDE based
UltraSPARC is not something I recommend (I tried and failed and the
consequences were not very pleasing).
> Dual CPUs don't always get you much of an advantage, especially
> on single-user workstations.
In Solaris Dual CPUs give you an advantage for multi-tasking and
multi-threading. If you do more than one thing at once, or you have
some process that's eating CPU time the U10 just stops dead, whereas
the Dual CPU machines will simply shove that off onto one CPU and let
you use the other as required. I'd think even a pair of 250MHZ
UltraSPARCs would be more usable than a single 440MHz most of the time.
The difference in speed between a U10 440MHz and a Dual 400MHz U60
both running 10k SCSI drives is astounding, even for menial desktop
stuff like web browsing etc. 1GB of RAM, 2 hard drives and 2 CPUs/
Cores is really a minimum in my mind to usable decent performance out
of Solaris 10. A U5 or U10 with 512MB RAM is probably better suited
to running Solaris 8 or 9. Even in Solaris 7 o an an SS20 the impact
of adding a second 55MHz CPU is massive.
> And, for most people, the benefit of cheap IDE drives outweighs the
> vs SCSI performance difference.
That's on of the nicest things about the U10 - finding a DVD drive in
order to install from Sun media is distinctly easier!
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