How to release all freelists back to system?

[infn-ke]

Invoking ReleaseFreeMemory seems to only release the "page heap freelist". How can I release the other freelists?

------------------------------------------------
MALLOC:         784216 (    0.7 MiB) Bytes in use by application
MALLOC: +        49152 (    0.0 MiB) Bytes in page heap freelist
MALLOC: +       465456 (    0.4 MiB) Bytes in central cache freelist
MALLOC: +       144640 (    0.1 MiB) Bytes in transfer cache freelist
MALLOC: +      1169784 (    1.1 MiB) Bytes in thread cache freelists
MALLOC: +       409600 (    0.4 MiB) Bytes in malloc metadata
MALLOC:   ------------
MALLOC: =      3022848 (    2.9 MiB) Actual memory used (physical + swap)
MALLOC: +       532480 (    0.5 MiB) Bytes released to OS (aka unmapped)
MALLOC:   ------------
MALLOC: =      3555328 (    3.4 MiB) Virtual address space used
MALLOC:
MALLOC:            391              Spans in use
MALLOC:              6              Thread heaps in use
MALLOC:           4096              Tcmalloc page size