Re: Reg: IBMi Webservice HTTP Server Performance Suggesstions

Hi Alan,

I tried using the named activation group as well. But there is no
improvement in the performance.

Regards,
Surender K

On Tue, Dec 17, 2019 at 12:24 PM Alan Campin <alan0307d@xxxxxxxxx> wrote:

Assuming you are running in main program and not wasting time running the
cycle. Are you using a named activation group?


On Tue, Dec 17, 2019 at 9:11 AM Suren K <suren7437@xxxxxxxxx> wrote:

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

to specify a "From" and/or "Reply To" email address!

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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