CODEWITHSUNDEEP
javamemoryjvmheap-memory32bit-64bit
cdub
cdub

Reputation: 25711

Maximum heap size for JVM on a 32-bit and 64-bit windows server

I have a third party application that was installed on my Windows Server 2008 and came with a JRE.

The server is a 64-bit machine, but when I try to adjust the heap size past about 1.5 GB, the JVM errors out.

I have found this article: Understanding max JVM heap size - 32bit vs 64bit

So if it's 32-bit windows, the max size is about 1.5gb to 2gb since windows takes some in the middle and needs to be continuous. So shouldn't the 64-bit be a lot more?

Upvotes: 1

Views: 4132

Answers (1)

AndreiV
AndreiV

Reputation: 99

Have you tried running the jvm with -d64 option ? I think I have read somewhere at a point that some VMs run in 32 bit mode by default

Upvotes: 1

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