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CarlCravens
Carl D Cravens

Sat

Dec 4
1999

21:41



Wikify

[ADMIN] Downtime tomorrow...

Synopsis:  Phoenyx.net gets a hardware upgrade.  About two hours downtime
tomorrow afternoon.  You don't need to understand any of the geekspeak
that follows, but I provide it for those who are interested.

Phoenyx.net currently runs on a 486/133 with 32M of RAM.  Earlier this
week I cashed in our change jar and purchased a AMD K6-2 (P-II class) with
64M of SDRAM and a 100 MHz bus motherboard (just about overkill for this
application).  I hope to swap these out tomorrow afternoon, which will
result in at least an hour of downtime, maybe two.  

Currently we're running about 50M of RAM in use when at our peak usage,
which means we use a *lot* of disk swap when things get heavy and that
slows the system down even further.  The new 64M should keep us from going
to disk which will improve performance.  The much faster processor, more
cache, very fast (6ns) SDRAM, and 100 MHz bus will go far toward improving
performance and allow us to implement some features that we felt wouldn't
do well under the 486.  The place you're going to see this most is in
running web forms... you should see results back from those a lot faster
as it takes less time to spawn and execute the CGI process. 

The two places we're still bottlenecked is our pipe, a 33.6k modem, and
the disk, which is an EIDE.

The new board supports UDMA-66 EIDE drives, and I think the drive in that
box is UDMA-33... if it is, disk performance will increase somewhat.  
I'll have to track down the documentation and check.  If anybody would
like to donate a fast SCSI adapter and/or drives to Phoenyx.net, we'd be
happy to take it off your hands.

The pipe isn't going to change any time soon... it's already $180 a month,
ISDN is $360, and cable or DSL aren't options around here. (We have them,
they don't support servers.)  We're finding the modem's quite adequate for
mail traffic and the web pages aren't bad unless they have a lot of
graphics or large graphics.  (What we're doing on our own pages for
graphics is putting them on our personal sites on the upstream provider
and using a server-side configuration that automatically redirects any
requests on the graphics directory to the faster upstream site, so we
never transfer those graphics over our modem.)

--
Carl D Cravens (raven@phoenyx.net)
Don't bother pressing that key, there is no Esc.

-- --------------------------------------------------------------
Listowner tools are found at http://www.phoenyx.net/listowners

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