Mark wrote:
>I updated MPE/ix from 5.0 to 5.5 pp4 over the weekend. The process went
>fairly well and took about 6 hours. I was a bit displeased, however,
>to see my batch jobs taking up to 42% longer to complete, with the
>average being about 30%. YIKES! I expected to take a performance hit,
>but is this normal? We are running a 937LX with 128Meg of memory.

Several people have commented on performance issues in 4.0->5.x updates,
and the general consensus seems to be "sorry, you're just out of luck".

I note however, that this was an upgrade from 5.0 to 5.5, which should
not be a radical change from a performance point of view.  I don't
know what radical difference in 5.5 could account for what Mark describes.
A 937LX with 128Mb should be fully capable of handling even a 4.0 to
5.5 update without a radical impact.

Also, if these are relatively stand alone batch jobs that he is seeing
the problem with, I think it is not likely that he is hitting a
"knee in the curve" type of problem.

In short, I think it is entirely too soon to say that this is normal
behavior, and there is a good chance that something simple is causing the
performance problems that can easily be fixed.

If this is the case, then just about any performance tool (have you used
up your free Glance trial in PUB.SYS yet?) should have a good chance of
pointing out either something that is consuming the CPU, or some problem
that is preventing the jobs from making forward progress.

Is the CPU utilization 100% while the jobs are running?  Are there any
unrelated processes eating up the CPU?

G.