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W2K3 IIS 6.0 ASP.NET Requests Per Second Limits?

Hi Guys,

How are you? I have recently begun some testing on IIS 6.0 in regards
to an asp.net application. After lots of testing I decided to create a
simple 1k page size webpage to find out whats the max rps I can
achieve. So I installed Microsoft Application Stress Tool (WAS) and
started testing. I setup basic 2 tests page does no processing
whatsoever:

TEST 1
======
Page : Page1.aspx - 1k in size
WAS : 50 threads | 1 socket per thread | Test run 1 minute
Server: 2 processors | W2k3 - IIS 6.0
TEST 2
======
Page : Page2.aspx - 1k in size | 1 sec delay on webpage
WAS : 50 threads | 1 socket per thread | Test run 1 minute
Server: 2 processors | W2k3 - IIS 6.0
In TEST1 I managed to get around 800 - 1000 requests per second but in
TEST2 I can only get 32 requests per second. The test was run on the
same network using Private ip address 192.16.1.x So I decided to run
TEST2 on another machine but this time on had 1 processor and I could
only manage 12 requests per second.

The above results were verified by performance counters and leads me to
believe that there must be a limit imposed somewhere to restrict the
number of requests per second based on processor.
e.g
1 processor = 12
2 processors = 32
4 processors = xx

My question is are any such limits imposed on w2k3? Am I doing the
wrong test or misinterepting the results? Can someone suggest if I had
a 1k asp.net page that does no processing except sleep for 1 second
what type of results I should expect? Basically if I use no caching, no
tricks what can I expect? Does changing machine.config settings help in
this case?

Regards DotNetShadow

Nov 22 '05 #1
0 2099

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