Re: system usage stats (Was: Re: Why Not MySQL? )

Well well. Mitch gets  his dual PIII board/processors -- I guess I sold the
idea to the boss-man :-)


- Mitch

----- Original Message -----
From: Don Baccus <dhogaza@pacifier.com>
To: The Hermit Hacker <scrappy@hub.org>; Mitch Vincent
<mitch@huntsvilleal.com>
Cc: <pgsql-hackers@postgresql.org>
Sent: Thursday, May 04, 2000 9:55 AM
Subject: Re: system usage stats (Was: Re: [HACKERS] Why Not MySQL? )


> At 10:33 AM 5/4/00 -0300, The Hermit Hacker wrote:
>
> >Wait, correct me if I'm wrong, but the more powerful CPU is in your
> >development server?
> >
> >My understanding is that a Celeron is a chop'd up PII ... my first
> >recommendation here is that if you are running a *server*, get rid of
that
> >Celeron ... from what I've been told about the difference, Celeron is a
> >great, cheap chip for using in a desktop environment (its what I use at
> >home), but shy away from it in a server environment, as the speed
> >reduction of the reduced cache alone will hurt things ...
>
> Celerons have a smaller L2 cache (128K) than PIIs (512K), but it runs
> full-speed rather than 1/2 speed like the PII cache.  Current models
> aren't "chopped up" in any sense, they're the same core with a smaller
> but faster cache.
>
> So, applications that have a high cache hit rate can actually run faster
> on the Celeron.
>
> New Coppermine PIII's (those that end in E or are > 600 MHz) have
> 256K full-speed cache, the Coppermine-based Celeron II's 128K
> full-speed.  Yes, they cut the cache size in half compared to
> PII's and non-E PIII's (Katmai cores) but it's full-speed, which
> turns out to be a win for nearly all applications.  Other than
> cache size and FSB/memory bus speed the new Celerons and PIII's
> are identical.
>
> All Celerons run with 66 MHz FSB and RAM, current Coppermines with
> 100 MHz RAM (even those with a 133MHz front-side bus) or spendy
> RDRAM which almost no one is buying.
>
> So, what's the bottom line?  The numbers don't tell us much,
> though I still think Tom's right that the PG7.0 one is really
> slower.  You just can't say if how MUCH slower.
>
>
>
> - Don Baccus, Portland OR <dhogaza@pacifier.com>
>   Nature photos, on-line guides, Pacific Northwest
>   Rare Bird Alert Service and other goodies at
>   http://donb.photo.net.
>