RFR: 8262386: resourcehogs/serviceability/sa/TestHeapDumpForLargeArray.java timed out

[Lin Zang]

On Wed, 3 Mar 2021 20:12:55 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

>> 8262386: resourcehogs/serviceability/sa/TestHeapDumpForLargeArray.java timed out
>
> The fix is fairly big and could use some explaining. Can you provide a bit more detail on what the bug is? In the CR you mention it is due to the combination of a very large array and the segmented heap dump support, but don't really explain what the actual bug is. You can add this detail to the CR rather than here.  Also can explain your solution, especially this new `writeThrough` mode? Thanks.

Hi Chris,

Thanks for your review, I found there is a potential risk for huge object dumping with this PR, I would work out an update and then add the explaination in the CR.
Thanks!

BRs,
Lin

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PR: https://git.openjdk.java.net/jdk/pull/2803