Deconstruct Object Space manipulation and tracking tools inside CRuby.
Updated May 17, 2026
Short answer
The ObjectSpace module interacts directly with CRuby's internal heap allocator, allowing developers to inspect every active object in memory for advanced debugging.
Deep explanation
ObjectSpace provides a look into the internal state of the running virtual machine. It can traverse every live object currently allocated on the heap, group allocations by class type, calculate memory footprints, and track down objects that are preventing garbage collection. Because walking the entire heap is an expensive operation, using it in production should be done with care.
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