RFR: 8317692: jcmd GC.heap_dump performance regression after JDK-8292818

Wed Oct 11 01:17:01 UTC 2023

On Fri, 6 Oct 2023 20:56:13 GMT, Hannes Greule <hgreule at openjdk.org> wrote:

> See the bug description for more information.
> 
> This implementation brings down the time to take a heap dump on the example application in the bug report to <2 seconds on my machine.

The fix itself looks good to me.
How did you tested the change?
Looks like we don't have test coverage for the correctness of the dumped fields. Would be nice to add it.

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PR Comment: https://git.openjdk.org/jdk/pull/16083#issuecomment-1756579065