RFR: JDK-8310388: Shenandoah: Auxiliary bitmap is not madvised for THP

Thu Jul 20 16:22:40 UTC 2023

On Thu, 20 Jul 2023 15:40:41 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Looks fine.
> 
> Does it make sense to enable `runtime/os/TestTracePageSizes.java` now?

Maybe. Possibly. I just found another bug in TestTracePageSizes where it does not correctly identify VMAs that are clearly backed by THPs, because it looks for the VM_xxx flags alone. I rather leave that test out for now to stabilize it a bit more; I don't want to start whacking the mole again.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/14953#issuecomment-1644218665