On Monday, October 10, 2016, Thomas Schatzl <thomas.scha...@oracle.com> wrote:
> Hi, > > On Mon, 2016-10-10 at 06:45 -0400, Vitaly Davidovich wrote: > > > > > > On Monday, October 10, 2016, Thomas Schatzl <thomas.scha...@oracle.co > <javascript:;> > > m> wrote: > > > > > > On Mon, 2016-10-10 at 10:12 +0200, Thomas Schatzl wrote: > > > > Hi all, > > > > > > > [...] > > > > > > > > (I am probably forgetting one or the other edge case here, but > > > that's > > > > the general idea; also please consider that for G1, except for > > > > humongous allocations, the heap does not need to ) > > > > > > ... the actually occupied heap area does not need to be contiguous. > > > It's just easier to draw as such :) > > Are the reserved regions contiguous or no? > > no. You can't guarantee that. Consider long-living allocations into > this area. At the moment G1 never moves humongous objects. Yeah, I didn't expect them to be but wanted to clarify/confirm that. This makes them less useful for covering humongous allocations, but I understand the constraints. Also, by considering the reserve as a watermark value, rather than space you really expect to use, I think that's fine. Thanks > > Thomas > > -- Sent from my phone
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