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The case for 32-bit Java on 64-bit Ubuntu is not that popular, however, on Cloud where memory is a premium it is pretty damn useful 32-bit can result in significant savings. For example, originally Confluence on 32-bit required less than 1GB of memory while 64-bit was 2x. Some readings cite Java 64-bit have improved memory performance using compression type scans., but as of Java 64-bit 1.8u92, this is still not the case. |
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