On 6/08/2015 12:49 PM, Timothy Sipples wrote:
All that said, I see way too many cases of operators/sysprogs/managers perversely trying to economize on memory, some perhaps remembering the "good old days" when "Hello World!" required only a few bytes. For better or worse, that hasn't been true for at least a couple decades. Suck it up and spend the memory.:-)
I'm not sure if I agree with that. Everybody knows that Java is a massive memory hog, and not just on z/OS. IBM knows it, and thank goodness they're working on things like multi-tenated JVMs to help relieve the pressure. Customers should demand innovation from vendors so their software doesn't hog resources instead of just sucking it up and buying more memory.
One of the reasons that nginx has displaced Apache HTTP server is because it uses significantly less memory. If you look at big data open source projects you will notice the trend of replacing back-ends running on JVMs with new systems built using new languages like Googles golang. The reason is because golang uses significantly less resources (RAM) and you can then use that RAM to provision more VMs.
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