Bounded pause time garbage collection system and method which includes a write barrier on partially the source and target instances relocated object

摘要

By object identifier store was relocated partially including a storage identifier "copy to" and identifier "copy from" accessible to the [summary] write barrier logic, (57) overhead of software trap handler (software trap handler overhead) Without retention of consistency between FromSpace and ToSpace instances of objects are rearranged in part by the write barrier is facilitated. A write barrier logic, storage instructions "How far" the optional facilitates the distinction between a portion that is not copied and the copied portion of the memory objects are rearranged in part. By the write barrier logic, "mode (mode)" by the desired instruction storage, to facilitate the distinction between stage and copy pointer update phase of the (relocation) relocation operation by the implementation of the garbage collector. In some embodiments, there is a copy phase and a pointer update phase overlap. "Copy to" identifier storage makes it easy to broadcast to both of the new space ToSpace instance and (FromSpace) old space (store-oriented) memory access store-oriented FromSpace for instance. Similarly, during the pointer update, storage identifier "Copy from" and "Copy to", which makes it easy to broadcast to both of ToSpace instance and FromSpace store-oriented memory access to or ToSpace instance either or FromSpace .