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The case for 32-bit Java on 64-bit Ubuntu is no longer endorsed. |
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not that popular, however, on Cloud where memory is a premium 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. |
If you try and install 32-bit Java on 64-bit Ubuntu you will get an error,
This is because the 32-bit library support is not installed,
For Ubuntu 13 and higher, For Ubuntu 16
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sudo dpkg --add-architecture i386
sudo apt-get update
sudo apt-get install libc6:i386 libstdc++6:i386 |
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Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
gcc-5-base:i386 gcc-6-base:i386 libgcc1:i386
Suggested packages:
glibc-doc:i386 locales:i386
The following NEW packages will be installed:
gcc-5-base:i386 gcc-6-base:i386 libc6:i386 libgcc1:i386 libstdc++6:i386
0 upgraded, 5 newly installed, 0 to remove and 13 not upgraded.
Need to get 2,763 kB of archives.
After this operation, 12.1 MB of additional disk space will be used. |
For Ubuntu 13 and above multiarch has also been removed for direct dependencies,
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sudo apt-get install libc6:i386 libgcc1:i386 gcc-4.6-base:i386 libstdc++5:i386 libstdc++6:i386 |
For Ubuntu 12 to 12.04, ia32-lib has been removed in favour of multiarch,
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