Re: httpapi speed

[Scott Klement <sk@xxxxxxxxxxxxxxxx>]

Peter,

When you're connecting to the same server repeatedly, I would recommend 
using the persistent APIs.  They have the ability to create a single 
connection, and then re-use that connection for multiple requests.  This 
should greatly improve performance.


D comm            s               *


 /free

     comm = http_persist_open( url );

     if comm = *null;
        http_crash();
     endif;

     for x = 1 to 1000;

        rci = http_persist_get( comm: url: 0: %paddr( toString ));

        if rci <> 1;
         // handle error
        endif;

     endfor;

     http_persist_close(comm);


On 5/28/2014 5:24 AM, Sawatzki, Peter wrote:
> I'm unsure whether we are doing something wrong: we are using httpapi successfully in several different projects however I'm wondering why the AS/400 is much slower than for example a simple PC that issues a request.
>
> To nail this down I wrote a simple web service that can be called with a GET and that returns a fixed string. The get is called with this code
>
> Rci = http_url_get_raw( Url : 0 : %PAddr( toString ) );
>
> in a loop 1000 times.
>
> On the PC (client) side I have a simple Delphi app that does
>
>   For i:= 1 to 1000 do Idhttp.get(Url);
>
> Where URL is http://192.168.101.27/dwhsvc/dwhsvc.dll/datasnap/rest/TServermethods/ping
>
> And the service responds with "pong". 192.168.101.27 is located in the same subnet as the AS/400.
>
> The AS/400 takes 210 seconds to issue 1000 calls, the PC takes less than two seconds (or 13 seconds for 10,000 calls).
>
> Any idea what I'm doing wrong on the AS/400 side ?
>
> Peter
>
>
>
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