Re: Socket Speed Question - RPG vs PC

Hi Brad,

So you changed the TCP attributes (chgtcpa) send and receive buffer sizes
from 65535 to 8192 and you saw the improved performance ?

Is that correct ?

Thanks

Don





From: "Brad Stone" <bvstone@xxxxxxxxx>
To: "RPG programming on IBM i" <rpg400-l@xxxxxxxxxxxxxxxxxx>
Date: 07/10/2020 03:50 AM
Subject: Re: Socket Speed Question - RPG vs PC
Sent by: "RPG400-L" <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx>



Well, that certainly made a difference! went from 8mbp to 23mbps. I
even
went back and forth to keep testing. Very cool! Those were HTTP tests,
so
then I tried HTTPS and got 21mps (remember, my line is only 30mbps... out
of town DSL is all we really have available).

I think it would be better if my kids weren't "distance learning" and
using
zoom all the time too.

Thanks, Patrick!!!

On Tue, Oct 6, 2020 at 11:48 AM Patrik Schindler <poc@xxxxxxxxxx> wrote:

Hello Brad,

Am 06.10.2020 um 14:53 schrieb Brad Stone <bvstone@xxxxxxxxx>:

The main problem is the speed vs my pc. 30mbs speeds on my pc (which

matches my poor internet speed haha!), 8mps on my application and even
slower on FTP client on the IBM i.

It appears to me that your performance problems are related to high
latency connections. This can be partly solved by using large send- and
receive buffers.

I'd recommend to set them to max (8 MB) in IBM i and try again.

If this is not solving your problem, it gets interesting. ;-)

:wq! PoC

PGP-Key: DDD3 4ABF 6413 38DE - https://www.pocnet.net/poc-key.asc


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