On Tue, 19 Oct 2021 13:01:10 GMT, Leo Korinth <lkori...@openjdk.org> wrote:
>> src/hotspot/share/memory/allocation.hpp line 398:
>>
>>> 396: class ResourceObj ALLOCATION_SUPER_CLASS_SPEC {
>>> 397: public:
>>> 398: enum allocation_type : uint8_t { STACK_OR_EMBEDDED, RESOURCE_AREA,
>>> C_HEAP, ARENA };
>>
>> Consider adding an "empty" allocation-type, that indicates an entry in the
>> RecentAllocations is unused.
>
> After thinking a bit, I will not add an "empty" value. It will make it harder
> to make functions "total" that matches on the enum, and the "empty" value
> does not really need to be reset in RecentAllocations.
STACK_OR_EMBEDDED is kind of a nice neutral element "mempty" in my opinion.
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PR: https://git.openjdk.java.net/jdk/pull/5387
