iis limitations?

  > >
  > >Besides from the hd space limitation, are there any limitations on how
many
  > >websites/domains/applications can be run on this server?
 >
 > None hard coded, all based on acceptable performance.
 >
  > >Also, what kind of traffic can this handle? how many hits max?
 >
 > At least 13. Maybe even 15.
 >
 > Traffic, hits, etc. are pretty meaningless measures of performance.
 > If every hit were a request for a simple HTML page, or a non-existent
 > page, it would be able to handle more than if every hit was a request
 > for your App to do something.
 >
 > Jeff

well, each hit is a request for my app to do something, I don't have simple
html pages. as it is each page view involves executing complex script, which
however caches all the results in app level vars, so if I disable caching
the page takes 2.5 seconds to execute on the server, with caching enabled,
there is no hd activity, and execution takes 0.07 or even 0.01 seconds, so
based on 0.07 seconds if we use it as average, how many simultanious
requests would the server be able to handle?

is there a way to isolate and track memory usage on the server by all app
level variables?

Also, is there a way to isolate and track the combined application threads
and their impact on server?

ark

ark<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: iis limitations? 

"ark" <sorry RemoveThis @nospam.com> wrote in message
news:OTrCHwhaEHA.2520@TK2MSFTNGP12.phx.gbl...
   > > >
   > > >Besides from the hd space limitation, are there any limitations on how
 > many
   > > >websites/domains/applications can be run on this server?
  > >
  > > None hard coded, all based on acceptable performance.
  > >
   > > >Also, what kind of traffic can this handle? how many hits max?
  > >
  > > At least 13. Maybe even 15.
  > >
  > > Traffic, hits, etc. are pretty meaningless measures of performance.
  > > If every hit were a request for a simple HTML page, or a non-existent
  > > page, it would be able to handle more than if every hit was a request
  > > for your App to do something.
  > >
  > > Jeff
 >
 > well, each hit is a request for my app to do something, I don't have
simple
 > html pages. as it is each page view involves executing complex script,
which
 > however caches all the results in app level vars, so if I disable caching
 > the page takes 2.5 seconds to execute on the server, with caching enabled,
 > there is no hd activity, and execution takes 0.07 or even 0.01 seconds, so
 > based on 0.07 seconds if we use it as average, how many simultanious
 > requests would the server be able to handle?

There's no way for us to know as there are too many variables. You'll have
to benchmark in your environment.

 > is there a way to isolate and track memory usage on the server by all app
 > level variables?
 >
 > Also, is there a way to isolate and track the combined application threads
 > and their impact on server?

See the IIS 6 Resource Kit Chapters 13 and 14 on Performance and
Scalability.
<a style='text-decoration: underline;' href="http://www.microsoft.com/MSPress/books/5351.asp" target="_blank">http://www.microsoft.com/MSPress/books/5351.asp</a>

See also:
<a style='text-decoration: underline;' href="http://support.microsoft.com/default.aspx?scid=kb;en-us;814876" target="_blank">http://support.microsoft.com/default.aspx?scid=kb;en-us;814876</a>

--
Tom Kaminski IIS MVP
<a style='text-decoration: underline;' href="http://www.microsoft.com/windowsserver2003/community/centers/iis/" target="_blank">http://www.microsoft.com/windowsserver2003/community/centers/iis/</a>
<a style='text-decoration: underline;' href="http://mvp.support.microsoft.com/" target="_blank">http://mvp.support.microsoft.com/</a>
<a style='text-decoration: underline;' href="http://www.iisfaq.com/" target="_blank">http://www.iisfaq.com/</a>
<a style='text-decoration: underline;' href="http://www.iistoolshed.com/" target="_blank">http://www.iistoolshed.com/</a> - tools, scripts, and utilities for running IIS
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 >> Stay informed about: iis limitations? 

On Wed, 14 Jul 2004 23:30:16 -0400, "ark" <sorry.RemoveThis@nospam.com> wrote:

   >> >
   >> >Besides from the hd space limitation, are there any limitations on how
 >many
   >> >websites/domains/applications can be run on this server?
  >>
  >> None hard coded, all based on acceptable performance.
  >>
   >> >Also, what kind of traffic can this handle? how many hits max?
  >>
  >> At least 13. Maybe even 15.
  >>
  >> Traffic, hits, etc. are pretty meaningless measures of performance.
  >> If every hit were a request for a simple HTML page, or a non-existent
  >> page, it would be able to handle more than if every hit was a request
  >> for your App to do something.
  >>
  >> Jeff
 >
 >well, each hit is a request for my app to do something, I don't have simple
 >html pages. as it is each page view involves executing complex script, which
 >however caches all the results in app level vars, so if I disable caching
 >the page takes 2.5 seconds to execute on the server, with caching enabled,
 >there is no hd activity, and execution takes 0.07 or even 0.01 seconds, so
 >based on 0.07 seconds if we use it as average, how many simultanious
 >requests would the server be able to handle?

Well, I'll still stick with my estimate of at least 13. But the only
way to know if you to measure your performance yourself. Establish a
baseline, then test under a simulated load. That should give you an
idea of the scalability of your app.

 >is there a way to isolate and track memory usage on the server by all app
 >level variables?
 >
 >Also, is there a way to isolate and track the combined application threads
 >and their impact on server?

Pick up the resource kit for some expanded utilities and the chapter
on performance. It's not something easily discussed in a newsgroup
post, and all of this is so variable based upon your specific needs
that any process that works for me likely won't meet your needs. And
vice versa.

Jeff<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: iis limitations? 

On Wed, 14 Jul 2004 16:04:18 -0700, ark wrote:
 >=A0I have a dedicated server, dual processor, 2gb memory 250gb hd.
 >
 >
 >=A0I have a single code base asp website.
 >
 >
 >=A0Currently there are 50 domains/websites running from a single code
 >=A0base, each domain has it's own application pool memory space, each
 >=A0domain has it's own sql server database.
 >
 >=A0I got the asp scripts all cached in memory, and they are extremely
 >=A0optimized and cache everything in app level vars, bringing average
 >=A0time of execution of each page on the server to 0.07 seconds, with
 >=A0cache turned off or reset, the execution is up to 2.5 seconds.
 >
 >=A0Besides from the hd space limitation, are there any limitations on
 >=A0how many websites/domains/applications can be run on this server?
 >
 >=A0Also, what kind of traffic can this handle? how many hits max?


It all depends on the traffic each site generates. One site is too many if=
it receives millions of hits a day on a 100kb image for example. Or, you=
can run thousands of sites that do a few gigs of traffic monthly. I've=
heard of 3,000 sites on an IIS box but I don't know what the traffic is. If=
the sites generate no traffic then you could have 10,000 sites.

There is really no answer to your question as there are so many variables.


John Cesta

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 >> Stay informed about: iis limitations?