MATLAB allocates memory for every command

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Mikhail Zubkov
Mikhail Zubkov on 28 Nov 2025 at 12:53
Commented: Walter Roberson on 28 Nov 2025 at 20:56
I think this happened after a recent java update.
For some reason MATLAB allocates a few Gb of memory every time I issue any command (even if the command produces an error and doesn't run) in the command window.
Commands that have been observed to allocate a few Gb of memory:
Unique(1)
(yes with the cap letter, producing an error, but still allocating a few Gb of RAM)
unique(1)
clc
Each of those results in a few Gb step of memory allocation in the windows system monitor.

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