G1gc compaction algorithm

[Tao Mao]

Ideally, G1 should have heap-wise deframentation but it doesn't as far as I
know.

Thanks.
Tao


On Tue, Jul 15, 2014 at 8:45 PM, Martin Makundi <
martin.makundi at koodaripalvelut.com> wrote:

> Hi!
>
> Humongous allocation fails when there is not enough contiguous free space
> in memory.
>
> How does g1gc compaction algorithm work, does it compact only within a
> region or does it attempt to compact in a whole-heap-defragmentation way?
> The latter would reduce the probability of "humongous allocation failure".
> And if this is possible, is there a parameter/s that can be changed to tune
> this?
>
> **
> Martin
>
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