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SystemAdmin
SystemAdmin
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Pinned topic AME support and 64K pages

‏2010-04-19T22:45:21Z |
Customers have asked when AME will support 64K medium pages. The answer is that they already are supported, but disabled by default via the vmo vmm_mpsize_support tunable (-1). 64K pages can be re-enabled via this tunable and a bosboot/reboot.

The primary reason they are disabled is that development performed tests with AME & 64K on various benchmarks and determined that the additional overhead of decompressing 64K pages (16 4K pages) outweighed any benefit of medium page use.

As a result, AIX development does not recommend mixing the two technologies, but customers are free to experiment.