Total Memory Usage Calculation on a Linux Virtual Box Host In An Oracle Virtual Desktop Infrastructure (VDI) Environment is Not Accurate (Doc ID 2107569.1)

Last updated on AUGUST 01, 2017

Applies to:

Oracle Virtual Desktop Infrastructure - Version 3.5.2 and later
Information in this document applies to any platform.

Symptoms

The Oracle Virtual Desktop Infrastructure (VDI) command, vda provider-list-hosts, when run against a Linux VirtualBox Desktop provider host, displays a column for memory usage as a percentage of total memory available. The metric displayed by VDI does not account for buffer and memory caches utilized on the Linux VirtualBox host accurately.

As a result, the Administrator can not use a figure of, say, 21% memory used from the vda command to correctly infer that 79% is still available. Some of that is already in use by buffers and cache.  Realistically, less than 79% of system memory actually available for use.

Cause

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