RE: httpapi speed

[Mike Krebs <mkrebs@xxxxxxxxxxxxxxxxxx>]

Not to distract from the question of speed (HTTPAPI is "slow"), but...

Do you need httpapi to perform faster than it does?

If not,
    the question is rhetorical and we don't have to spend any more time figuring it out.
If it is a requirement,
    we should try to figure it out. 



-----Original Message-----
From: ftpapi-bounces@xxxxxxxxxxxxxxxxxxxxxx [mailto:ftpapi-bounces@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Scott Klement
Sent: Wednesday, May 28, 2014 12:25 PM
To: HTTPAPI and FTPAPI Projects
Subject: Re: httpapi speed

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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