The MemoryInUse command returns the number of bytes currently being used to store all data in the current Maple session.

$\mathrm{with}\left(\mathrm{MmaTranslator}\left[\mathrm{Mma}\right]\right)\:$

$\mathrm{MemoryInUse}\left(\right)$

$2111208$

$\mathrm{with}\left(\mathrm{MmaTranslator}\right)\:$

$\mathrm{FromMma}\left(\mathrm{`MemoryInUse[]`}\,\mathrm{evaluate}\right)$

$12349144$