when do you really need a 64bit cpu?
Jonathan Hutchins
hutchins at tarcanfel.org
Sat Apr 2 17:52:36 CST 2005
On Saturday 02 April 2005 05:12 pm, hanasaki wrote:
> So... I pose this question. When do you really need a 64bit CPU <other
> than the obvious potential need of a megasever needing the address
> space>?
By which you mean that you have so many Gigabytes of RAM that you are not even
in the same state as the person writing the checks.
Most of the servers I know of run at less than 20% CPU usage 99% of the time,
especially web servers. An application or LTSP server might be different, or
somethign that had to to a lot of database whacking.
Generally, the problem with a server is that to get the IO performance you
need you have to MASSIVELY overbuy on other hardware like the CPU. I would
imagine that this is true of the 64bit architecture as well - it's not the
CPU you're buying so much as the data bus.
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