Re: how to compare X Ghz processor to Y Ghz processor?
- From: The Natural Philosopher <a@xxx>
- Date: Wed, 29 Oct 2008 05:48:59 +0000
ray wrote:
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 ofThe "faster one" is likely to be the one running on a chipset which
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
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.
Its all so easy. Just run top and see.
whether all the processes are waiting for disk IO, or whether the CPU factor is high, or whether the thing is swapping like Trixie.
.
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