RFR: 8218746: SA: Implement discontiguous bitmap for ZGC
jini.george at oracle.com
Thu Feb 14 16:04:13 UTC 2019
Looks good to me. Nit: Could you please modify the copyright year? And
don't we have to add the copyright message to the new file
On 2/11/2019 7:25 PM, Stefan Karlsson wrote:
> Hi all,
> Please review this patch to implement a discontiuous bitmap for ZGC in
> the SA.
> ZGC uses a 16TB virtual memory address range, so the normal scheme to
> map a bitmap over the entire address range uses too much memory. This
> patch lazily creates smaller bitmaps per ZPage, when at() or atPut() is
> This patch builds upon JDK-8218743.
> Tested with serviceability/sa and manually running Reverse Object
> Analysis in the SA.
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