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I really don't understand the question. But I attended an IBM briefing last year
where the relative performance of RAM, traditional DASD, and Solid State Drives
were discussed. Now I wish I had kept the handout. I seem to recall that moving
data around in RAM was something like 100 times faster than moving data from
traditional DASD to RAM. But I really don't remember. So please don't quote me.
I'll just ask, would of your jobs, and all of your data fit in existing RAM all
of the time? And is your CPU busy 100% of the time? If not, then I think that
adding more RAM will increase the efficiency of your system.
-Nathan
----- Original Message ----
From: Tomasz Skorża <t.skorza@xxxxxxxxxxx>
To: midrange-l@xxxxxxxxxxxx
Sent: Sun, January 16, 2011 2:30:47 PM
Subject: How much memory I can add - additional question?
Thabks for answer about memories ... I have one more question.
Is it possible to estimate (even approximately) how much the system efficiency
will grow together
with memory grow?
4 GB to 8GB? 10%? 20% more efficiency?
4 to 16?
4 to 32?
I'm interested in time of get result of SQL queries.
Regards
Tomek
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