Re: 725CPW vs 1450 IBM i Cloud System

If you use the wrksysact command while the system is choking - is the cpu
utilization close to 100 %?

Best regards

Stefan

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Stefan Tageson
+46 732 369934
stefan@xxxxxxxxxx

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of
Brad Stone
Sent: Monday, April 29, 2024 8:09 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: 725CPW vs 1450 IBM i Cloud System

ya.. I don't know how to do that. :) (well, the move QHTTPSVR subsystem
to it's own pool).

As far as the number of threads, that's part of the issue. When 15
requests come in all at once it just chokes them all.

On Mon, Apr 29, 2024 at 12:31 PM Diego E. KESSELMAN <
diegokesselman@xxxxxxxxx> wrote:

Try to increase the thread count to 999 (Maximum) for the workload,
and move the subsystem to its own shared pool.

--
Saludos/Regards

Diego E. KESSELMAN

On 29/04/24 10:37, Brad Stone wrote:

I have a max of 100. I tried to drop it down to like 10 but for
some reason the SSI requests that were waiting for an available job
would just error out right away (I haven't looked into why yet.. it
shouldn't do

that).

As for the other things.. I'm no hardware guy.. sorry. :)

On Mon, Apr 29, 2024 at 11:08 AM Diego E. KESSELMAN <
diegokesselman@xxxxxxxxx> wrote:

Hi Brad,


* How many threads have you set for that particular Apache server?
* Do you have different storage tier options? Maybe a faster tier
or adding more IOPs (more disks or memory, depending on your
vendor) could help your workloads
* Can you change the amount of vCPUs?

--
Saludos/Regards

Diego E. KESSELMAN


On 29/04/24 09:37, Brad Stone wrote:

Yep, I've already got 14gb of memory.

On Mon, Apr 29, 2024 at 10:28 AM Gavin Inman <

midrangelist@xxxxxxxxxxxxxx>

wrote:

We had a similar situation with a web server on i. We bumped from
1000 to 1500 CPW.. We also increased memory from 4 to 12GB.

Gavin.

On 4/29/2024 10:57 AM, Brad Stone wrote:

I am using a cloud system and I was set up with the lowest CPW

available.

It works in most situations except it is a little slow for
websites

with a

lot of server side includes. This means that when a page is
loaded

there

are 10 or more requests made at the same time to fulfill those
SSI

requests

and it seems to overwhelm the CPU. (Think of it as 10 or more
people requesting a CGI web page at the same time).

Would a bump up from 725 to 1450 make much of a difference? Or
is

there

any tuning one can do to help?

I am thinking about changing the way the pages are developed to
not

use

so

many SSIs.. but they're so nice. :)

Bradley V. Stone
www.bvstools.com
Native IBM i e-Mail solutions for Microsoft Office 365, Gmail, or
any

Cloud

Provider!


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