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Why Oracle recommends to have less heap while using IBM Java in OEM 12c

2603287Mar 27 2015

I've recently installed OEM 12c R4 and set the values for OMS_HEAP_MIN (-Xms) and OMS_HEAP_MAX (-Xmx) to 1740M in a 64-bit environment as per Oracle recommendation. This can be found at

But with only 1740M heap size, i am frequently getting java heap size related alerts.

Is there any specific reason for recommending only 1740M?

Can I safely increase the heap size to 4G as the manual suggest for Medium size OEM installations in case of other Java vendors

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Added on Mar 27 2015