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Harry_Singh_105's avatar
Harry_Singh_105
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Feb 08, 2008

Performance Enhancements for IIS 6.0/ASP.Net Pages

Hi all --

 

 

I've been getting hit with performance issues when users are hitting our 2 iis 6 webservers. The pages are all coded in ASP.net and I can't seem to figure where the lag is coming from. I'm running 9.x on a F5 BIGIP 1500LTM

 

 

I'm relatively new to F5, but have a pretty good understanding of the product architecture. I was given a TCP_fast profile by an engineer that is suppose to mirror the tcp-lan-optimized profile found in 9.4 and later..

 

 

bandwidth delay disable

 

nagle disable

 

recv window 65535

 

send buffer 65536

 

proxy buffer high 131072

 

proxy buffer low 98304

 

slow start disable

 

 

I've attached an image of the settings but i'm not sure if bandwidth delay nagle and slow start are actually disabled or enabled. could someone clarfiy ?

 

 

Also, i don't have a oneconnect profile attached to the http_profile i created? should i ? what is the benefit of a oneconnect profile ?

 

 

My http_profile is also pretty standard, are there any settings that should be adjusted to handle iis/asp traffic/pages ?

 

 

Thanks to all for viewing..

 

 

 

 

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  • Justinian_48178's avatar
    Justinian_48178
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    Jun 03, 2009
    So looking at your screen capture neither nagle or slow start are enabled which mirrors what our personal TCP fast profile shows.

     

     

    As for oneconnect, that would be dramatically affected by your architecture as well as your IIS settings. For my environment, enabling one_connect caused a significant performance hit to the application. It depends on how your sites are built to handle that single session; and it could also greatly affect your reporting depending on how you are doing your metrics.

     

     

    My 2 cents,

     

    Justinian
  • Harry_Singh_105's avatar
    Harry_Singh_105
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    Jun 03, 2009
    Thanks for the reply. What are you using to measure web site performance/responsiveness once you've made any changes to the config in the F5 ? fiddler ?

     

     

    It would be great for me to get this performance data to rule out the F5 as the cause of any lag.

     

     

    Thanks,