/usr/bin/purge
Just type in 'purge' at the command line (Terminal.app) from the main page:
PURGE BSD System Manager's Manual PURGE NAME
purge -- force disk cache to be purged (flushed and emptied)
SYNOPSIS purge
DESCRIPTION
Purge can be used to approximate initial boot conditions with a cold disk buffer cache for performance analysis.
It does not affect anonymous memory that has been allocated through malloc, vm_allocate,
Purge can be used to approximate initial boot conditions with a cold disk buffer cache for performance analysis.
It does not affect anonymous memory that has been allocated through malloc, vm_allocate,
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