RFR: 8320924: Improve heap dump performance by optimizing archived object checks

[Ioi Lam]

On Wed, 29 Nov 2023 08:27:11 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> > I feel "debug" log level is kind of high since we may encounter a lot of these; for such unbound micro-prints I usually use "trace". Up to you.
> 
> I agree "trace" would fit better here. Let's see if @iklam has an opinion.

I think `trace` is good. BTW, I rarely use `-Xlog:cds+heap` as it usually too verbose :-)

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PR Comment: https://git.openjdk.org/jdk/pull/16863#issuecomment-1832356872