Quick question: I see the following formula used for determining the initial JVM Max Heap Size documented in the VE InfoCenter and Redbooks.
+Initial heap calculation = 90MB + 0.05 MB/req * peak req./sec * Desired time between garbage collections (GC)+
This is compared to the suggested calculation from the IMPACT 2012 VE Best Practices presentation:
+JVM heap size (in MB) = 90 + MR (max requests per second ODR is to handle)+
Is the best practice from the IMPACT 2012 session the new accepted practice?
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5 replies Latest Post - 2012-05-30T17:20:30Z by SystemAdmin
Pinned topic ODR Initial JVM Heap Size setting
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Updated on 2012-05-30T17:20:30Z at 2012-05-30T17:20:30Z by SystemAdmin
Re: ODR Initial JVM Heap Size setting2012-05-30T14:13:02Z in response to KeithSKeith,
Thanks for clarifying. Two follow up questions then:
- This calculation is for max heap size, correct?
- For the new calculation, if I expected my ODRs to handle 1000 requests per second then my initial max heap size would be 1090MB, correct?