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# of objects traced / moved #1006

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# of objects traced / moved #1006

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udesou
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@udesou udesou commented Oct 31, 2023 •
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This PR adds the option to count the number of objects traced and moved in Immix GCs. In combination with STRESS_DEFRAG and DEFRAG_EVERY_BLOCK it can give an indication of how many objects are being transitively pinned (and pinned using the pin bit) and therefore cannot be copied.

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wks commented Oct 31, 2023

... In combination with STRESS_DEFRAG and DEFRAG_EVERY_BLOCK ...

You also need to set Defrag::DEFRAG_HEADROOM_PERCENT = 50 so that there is enough room for defragmentation. Otherwise it will copy 2% of the heap size and then stop copying.

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