Johnny Luo wrote:
Sorry for a newbie to jump in here...
But I have a question: why IBM doesn't increase the clock of mainframe CPU?
There is no need or there are some technical problems?
I'm now working at one customer's site and every day's afternoon is a
terrible time for all developers working on their development system: we
just cannot use TSO/ISPF! You must wait 4 or 5 seconds for a response and
sometimes you just hang there. The cause is that most teams will do their
batch tests at that time thus eating all of CPU cycles. I guess they might
need a more powerful CPU? (This situation has last for three months since I
came here)
For the same reason that Intel and AMD, or any other processors, don't
just increase their clock speeds. Reliability.
What zSeries box do they have? I doubt very much that they have a fully
loaded z9 and are waiting 4-5 seconds for response time from TSO.
Unless your zSeries is maxed out on the number of processors, it could
just need an additional CPU, not necessarily a faster one.
The question is not what response time your developers are getting, but
what response time are your customers getting?
If you company is like most, they really don't care about the response
time that developers get. As long as the customers work get done they
are happy.
Heck, for the distributed applications we have our users would LOVE to
ONLY wait 4-5 seconds. One application we converted from 3270 to Web
went from 2 seconds response time to 15 second response time. We have
customers that refuse to use that application. They have another way to
perform the same function that is still 3270 and they use it.
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