WITH_OBJECT_HEADERS enabled GC from Dalvik?

Posted by Wonil on Stack Overflow See other posts from Stack Overflow or by Wonil
Published on 2010-04-29T01:49:32Z Indexed on 2010/05/13 14:54 UTC
Read the original article Hit count: 300

Filed under:

android

|

dalvik

|

garbage-collection

|

virtual-machine

Hello, As I know Dalvik VM does not support generational GC as default.

But, I found "WITH_OBJECT_HEADERS" compilation flag which could be related with generational GC from HeapInternal.h file.

typedef struct DvmHeapChunk {
#if WITH_OBJECT_HEADERS
    u4 header;
    const Object *parent;
    const Object *parentOld;
    const Object *markFinger;
    const Object *markFingerOld;
    u2 birthGeneration;
    u2 markCount;
    u2 scanCount;
    u2 oldMarkGeneration;
    u2 markGeneration;
    u2 oldScanGeneration;
    u2 scanGeneration;
#endif

Does anyone try to build Dalvik with this option enabled? Do you know anything about generational GC support from Dalvik?

Regards, Wonil.

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