Re: IceBreak as an alternative to Apache?

I am in over my head with talking about the network TCP/IP layer, but
essentially, yes, that is what I was alluding to. I am more repeating what
IBM told me than understanding all of the implications of what they said.

I dont' have access to a 7.1 machine on my LAN, though I could spin up an
IBM Virtual Loaner Instance.

Aaron Bartell
www.MowYourLawn.com/blog
www.OpenRPGUI.com
www.SoftwareSavesLives.com



On Sat, Jan 1, 2011 at 3:01 AM, Thorbjoern Ravn Andersen <ravn@xxxxxxxxxx>wrote:

Den 31/12/10 21.38, Aaron Bartell skrev:

I am not sure what the max clients is, but I do know that when I have

done

testing with JMeter I hit the TCP layer bottleneck before I hit the OS

job

limitation. Actually, that was a test for stateless transactions. I
basically spun up a couple hundred Apache jobs and hit it hard with

JMeter.

That's when things started falling apart and I had to call IBM. They

of

course told me it was my software, so I had to put together a bare bones

CGI

app and prove it wasn't. Then they got one of the higher level devs on

and

they pretty much determined it was at the TCP layer. You can adjust the

TCP

layer settings, but they recommended against it.

Am I right in understanding the above to be that there is a limitation
in the TCP/IP implementation for the i? Is this still a case for V7R1?
(in other words could you redo the test :) )

When I read the above the first time, I thought you were overflowing the
buffer in the networking layer for incoming, but not yet accepted socket
connections (which I believe is around 20), but now I am not so sure any
more. Could you elaborate on what you were seeing?

--
Thorbjørn Ravn Andersen "...plus... Tubular Bells!"

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