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{block-size, nused, nfree} |
where block-size is the size in bytes of a particular class of memory fragments, nused is the number of such fragments currently in use in the server, and nfree is the number of such fragments that have been reserved for use but are currently free.
On servers for which such statistics are not available, memory_usage()
returns {}
. The compilation option USE_GNU_MALLOC
controls
whether or not statistics are available; if the option is not provided,
statistics are not available.
E_QUOTA
if, for some reason,
no such on-disk representation is currently available.
verb_cache_stats
the return value will be a list of the form
{hits, negative_hits, misses, table_clears, histogram}, |
though this may change in future server releases. The cache is invalided
by any builtin function call that may have an effect on verb lookups
(e.g., delete_verb()
).