Ruby 1.9.2 リファレンスマニュアル > ライブラリ一覧 > objspaceライブラリ > ObjectSpaceモジュール > memsize_of

module function ObjectSpace.#memsize_of

memsize_of(obj) -> Integer [added by objspace]

Return consuming memory size of obj.

Note that this information is incomplete. You need to deal with this information as only a *HINT*. Especaially, the size of T_DATA may not right size.

This method is not expected to work except C Ruby.