Re: how to compare X Ghz processor to Y Ghz processor?
- From: ray <ray@xxxxxxxxxx>
- Date: 29 Oct 2008 04:02:39 GMT
On Tue, 28 Oct 2008 23:31:48 +0000, The Natural Philosopher wrote:
ray wrote:
On Tue, 28 Oct 2008 13:27:23 -0700, Bennett Haselton wrote:not neceessarily. Depends what slows you down.
If I'm comparing dedicated Linux hosting offers, is there a rule of
thumb to tell which of two processors is going to be the faster,
better choice? (Assuming I'm just hosting a busy Web server.)
One hosting company suggested I "upgrade" from a machine with an Intel
Celeron 2.8 Ghz to a machine with an Intel Celeron 430 1.8 Ghz. At
first I wondered why the supposedly better one would have a smaller
Ghz number. But I know that an X Ghz processor is not necessarily
faster than a Y Ghz processor just because X > Y. But in that case,
is there a rule for determining which is better? A published list
that lists all processors in order by their speed (assuming a fixed
task like running a busy Web server)?
Bennett
The "faster one" is likely to be the one running on a chipset which
offers faster disc access.
a 1.8Ghz 64 bit chip with good cache will out compute a faster 32 bit
one with less cache..if you are compute bound.
This machine certainly is..a 450MHz Power PC is very slow...:-)
Sometimes its ram you are short of..if yo regularly rn a zillion
processes on a server, or manipulate very large graphic objects or
movies..
Disk access only really affects program or data loading, unless you are
running a huge database with many users.
A web server is going to need fast disk access or else one hell of a large
cache. CPUs are orders of magnitude faster than disk access.
.
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