Re: Reg: IBMi Webservice HTTP Server Performance Suggesstions

Hi All,

I got one more clue.

When i remove the QtmhWrStout API from my program, now the transaction time
improved from 500 milliseconds to 270 milliseconds. Now i assume the
QtmhWrStout
API sends some response back to HTTP Server which is doing some process to
send the response back to client, which is where the performance is getting
affected.

Any suggestions what to do to improve the performance now?

Regards,
Surender K

On Tue, Dec 17, 2019 at 10:44 AM Alan Campin <alan0307d@xxxxxxxxx> wrote:

Better yet don't use cycle program. Make the program a Main program

without

a cycle. It will run faster.

On Tue, Dec 17, 2019 at 7:38 AM Raul Jager <raul@xxxxxxxxxx> wrote:

The 2 milliseconds, do not include the time to start (load) the

program,

opening files, closing, etc. Leaving LR off will allow a much faster
reply after the first call.

To find out the total execution time I often open two 5250, in one I
monitor the other one (DSPJOB) in the 3rd line I have CPU time used.

Go

to the other screen, run the program, come back, refresh, there you

have

CPU time used.

El 17/12/19 a las 12:00, Suren K escribió:

Hi Bradley,

I stored the timestamp value in the first and last line of the

program

to

calculate the time taken by Program (Which contains those three

lines).

Its

taking only 1ms or 2ms to complete it. But the tool which i am using

to

execute the transaction is postman, which says the total transaction

took

500ms.

I am not sure where the 498ms delay is happening... Any idea Bradley?

Also, once this performance issue is resolved, I am planning to use

Scott

Klement's JSON Parser (YAJLINTO) and Data Generator (YAJLDTAGEN) to
parse/generate the JSON document.

Regards,
Surender K

On Mon, Dec 16, 2019 at 5:08 PM B Stone <bvstone@xxxxxxxxx> wrote:

Instead of using the APIs, have you tried installing Scott Klement's

YAJL

and used yajl_stdin_load_tree() in your CGI program instead? It

does

use

the same APIs under the covers.



Bradley V. Stone
www.bvstools.com
MAILTOOL Benefit #2 <https://www.bvstools.com/mailtool.html>: The

ability

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On Mon, Dec 16, 2019 at 3:17 PM Suren K <suren7437@xxxxxxxxx>

wrote:

Hi All,

I am getting some performance issue. Your suggestions will be a

great

help

to me and very much appreciated.

Earlier, I was using IWS as web service and trying some POST method
transactions (JSON as Input and JSON as response, used both

DATA-INTO

and

DATA-GEN for JSON Conversions). It was taking 300 milliseconds for
processing a transaction.

Now, i thought of using only HTTP Server and using CGI program

calls

to

interact with RPG. I created a new HTTP Server and updated the
configuration to add the CGI program call. Also, I created a sample

program

which contains only 3 line of code (Line 1 will fetch the input
using QtmhRdStin API, Line 2 hard coded sample response JSON string

of

100

character length, Line 3 send back the hard coded response
using QtmhWrStout API).

But the CGI program call method is taking 500 milliseconds for

processing

the sample program (Program with 3 lines of code).

Any configurations which i need to take care in HTTP Server to

increase

the

performance?

Regards,
Surender K
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