SLOW .NET client for custom HTTP server

[ali]

Hi,

I am using my own HTTP/SOAP server to handle requests. If calling it from
tomcat axis leads to 300 msg/s, calling it from a .NET (C++ Managed) client
leads to 2 msg/s with a CPU 99% idle !

This same .NET client works fine (250 msg/s) with a .NET server. Has anybody
encountered the same pb ?

Are .NET clients requiring a certain type of advanced HTTP exchange to perform
a good job ? Are they "Sleep(500)" instructions in the .NET client code just
to be sure that only .NET server are used ???

Best Regards,
ALi

"ali" <vc.@127.0.0.1> wrote:
It appears that the .NET client closes the connexion and reopens it after
each call.

How do I control this ?

>
>Hi,
>
>I am using my own HTTP/SOAP server to handle requests. If calling it from
>a custom HTTP/SOAP client leads to 300 msg/s, calling it from a .NET (C++
Managed) client
>leads to 2 msg/s with a CPU 99% idle !
>
>This same .NET client works fine (250 msg/s) with a .NET server. Has anybody
>encountered the same pb ?
>
>Are .NET clients requiring a certain type of advanced HTTP exchange to perform
>a good job ? Are they "Sleep(500)" instructions in the .NET client code
just
>to be sure that only .NET server are used ???
>
>Best Regards,
>ALi
>

[ali]

For info, it is slow because you HAVE to respond HTTP 1.1/Continue after receiving
the header.

<vb.@127.0.0.1> wrote:
>
>"ali" <vc.@127.0.0.1> wrote:
>It appears that the .NET client closes the connexion and reopens it after
>each call.
>
>How do I control this ?
>
>>
>>Hi,
>>
>>I am using my own HTTP/SOAP server to handle requests. If calling it from
>>a custom HTTP/SOAP client leads to 300 msg/s, calling it from a .NET (C++
>Managed) client
>>leads to 2 msg/s with a CPU 99% idle !
>>
>>This same .NET client works fine (250 msg/s) with a .NET server. Has anybody
>>encountered the same pb ?
>>
>>Are .NET clients requiring a certain type of advanced HTTP exchange to
perform
>>a good job ? Are they "Sleep(500)" instructions in the .NET client code
>just
>>to be sure that only .NET server are used ???
>>
>>Best Regards,
>>ALi
>>
>

[Bobby]

What is actually causing the client not to scale? Is there a solution?

"ali" <none@none.com> wrote:
>
>For info, it is slow because you HAVE to respond HTTP 1.1/Continue after
receiving
>the header.
>
><vb.@127.0.0.1> wrote:
>>
>>"ali" <vc.@127.0.0.1> wrote:
>>It appears that the .NET client closes the connexion and reopens it after
>>each call.
>>
>>How do I control this ?
>>
>>>
>>>Hi,
>>>
>>>I am using my own HTTP/SOAP server to handle requests. If calling it from
>>>a custom HTTP/SOAP client leads to 300 msg/s, calling it from a .NET (C++
>>Managed) client
>>>leads to 2 msg/s with a CPU 99% idle !
>>>
>>>This same .NET client works fine (250 msg/s) with a .NET server. Has anybody
>>>encountered the same pb ?
>>>
>>>Are .NET clients requiring a certain type of advanced HTTP exchange to
>perform
>>>a good job ? Are they "Sleep(500)" instructions in the .NET client code
>>just
>>>to be sure that only .NET server are used ???
>>>
>>>Best Regards,
>>>ALi
>>>
>>
>

[bobby]

Apparently MS .NET only allows a maximum of 2 HTTP connections on a client
by default. If you edit this setting you should get a much higher throughput.
Another thing to try is to disable the use of Nagle's algorithm on the client.

"Bobby" <none@none.com> wrote:
>
>What is actually causing the client not to scale? Is there a solution?
>
>"ali" <none@none.com> wrote:
>>
>>For info, it is slow because you HAVE to respond HTTP 1.1/Continue after
>receiving
>>the header.
>>
>><vb.@127.0.0.1> wrote:
>>>
>>>"ali" <vc.@127.0.0.1> wrote:
>>>It appears that the .NET client closes the connexion and reopens it after
>>>each call.
>>>
>>>How do I control this ?
>>>
>>>>
>>>>Hi,
>>>>
>>>>I am using my own HTTP/SOAP server to handle requests. If calling it
from
>>>>a custom HTTP/SOAP client leads to 300 msg/s, calling it from a .NET
(C++
>>>Managed) client
>>>>leads to 2 msg/s with a CPU 99% idle !
>>>>
>>>>This same .NET client works fine (250 msg/s) with a .NET server. Has
anybody
>>>>encountered the same pb ?
>>>>
>>>>Are .NET clients requiring a certain type of advanced HTTP exchange to
>>perform
>>>>a good job ? Are they "Sleep(500)" instructions in the .NET client code
>>>just
>>>>to be sure that only .NET server are used ???
>>>>
>>>>Best Regards,
>>>>ALi
>>>>
>>>
>>
>