Re: Performance Bottleneck?

[Aaron Bartell <aaronbartell@xxxxxxxxx>]

One thing you could do is turn on verbose mode in Apache and see if
there is anything in there.  I believe it has timestamps which would
allow you to determine if it was Apache or the network or the client
rendering the HTML.

Here is how I do it:
STRTCPSVR SERVER(*HTTP) HTTPSVR(MYRXS '-vv')

Run a few transactions and make sure the lag occurs.  Then end the same
named HTTP server instance and do a WRKSPLF QTMHHTTP and you should see
a handful of spool files that were created.  Note you need to end the
instance for the spool files to be created.

If you don't want to stop the HTTP server instance you can do a
TRCTCPAPP command and then use PRTTRC (I believe) to view the results.
This is what IBM usually asks me to do when I am on 2nd and/or 3rd level
support trying to figure out an issue.

HTH,
Aaron Bartell
http://mowyourlawn.com



On Wed, 2008-05-21 at 10:38 -0500, Joe Wells wrote:
> I have an RPG-CGI web application that would appear to be periodically
> hitting a bottleneck somewhere along the line. I have tracked the time it
> enters and exits the RPG and that always results in subsecond response. 
> Unfortunately, the web page itself does not display that quickly.  Sometimes
> it is subsecond, but frequently it is much more (as much as 10-15 seconds!).
>  We have given QHTTPSVR lots of memory, but that had no effect.  So.......I
> am looking for suggestions of where to look next.  I specifically want to
> rule out the "i" as the culprit before I contact the network folks to have
> them sniff around.
>
> Thanks,
>
> joe