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Posted by TC on March 30, 2005, 2:52 pm
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I have a website hosted by Crystaltech. I just moved the site from a
shared server to a dedicated server, and the site has slowed down. Can
anyone can give me advice on how to configure the server and improve
the speed?
I do not know how to confirm this, but my impression is that there is a
delay before the server starts serving each page. Once it starts
serving a page, it feeds it out very quickly (just as fast as the
shared server did -- faster if I turn on compression.) The delay can be
anywhere from 0 to 15 seconds, and it seems to correlate loosely with
the length of time since the page was last served.
I should mention that the site is written in ASP with a moderate amount
of database processing. It is a development site, so there is no
traffic. The server is running Windows 2003 with a 1.8GHz Celeron
Processor. (This is CrystalTech's bottom-of-the-line server. I'm
willing to upgrade to a faster server if that will help, but at this
point I'm not sure the server speed has anything to do with the
problem.)
All advice is appreciated.
-TC
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Posted by William Tasso on March 31, 2005, 12:22 am
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> I have a website hosted by Crystaltech. I just moved the site from a
> shared server to a dedicated server, and the site has slowed down. Can
> anyone can give me advice on how to configure the server and improve
> the speed?
>
> I do not know how to confirm this, but my impression is that there is a
> delay before the server starts serving each page. Once it starts
> serving a page, it feeds it out very quickly (just as fast as the
> shared server did -- faster if I turn on compression.) The delay can be
> anywhere from 0 to 15 seconds, and it seems to correlate loosely with
> the length of time since the page was last served.
>
> I should mention that the site is written in ASP with a moderate amount
> of database processing. It is a development site, so there is no
> traffic. The server is running Windows 2003 with a 1.8GHz Celeron
> Processor. (This is CrystalTech's bottom-of-the-line server. I'm
> willing to upgrade to a faster server if that will help, but at this
> point I'm not sure the server speed has anything to do with the
> problem.)
>
> All advice is appreciated.
Crikey! - could be a gazillion things.
The loose correlation you mentioned indicates a caching issue of some
sort. What RDBMS engine? As well as remote caching servers the web
server will try to cache regularly used content and the db may (some
do/some don't) have a query cache. Did the shared box have a front-end
cache bolted on?
Celeron isn't the ideal platform for a server, but you know that. How
much RAM in this box compared to the shared facility?
If you're using an Access db on a box that's tight for RAM already you
will notice a performance hit especially if you code isn't too particular
about destrying objects no longer needed.
Are you carting recordsets around in the session object? That could kill
it.
Have you recently installed SSL certificate?
Finally, what's the TTL on your domain file? set it too small and well
behaved dns servers will not hang on to the info - meaning a lookup on the
domain name servers is required.
Some tests ....
create a vanilla html 'Hello world' document
create a trivial ASP 'Hello World' document
create a db driven 'Hello World' document
Check how they perform under similar circumstances. The results may guide
you to where to look next.
--
make cents - news:alt.www.webmaster.ads
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