RFR: 8344263: GenShen: Reduce extraneous log messages at INFO level

[Y. Srinivas Ramakrishna]

On Fri, 15 Nov 2024 01:26:43 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Genshen logs a lot of fine level detail at `gc=info`. This category should be reserved for major phase changes in the gc cycle.

Can you share an example snippet (in the ticket or in the PR) of what we would see with a young and an old cycle with the reduced info-level logging?

The changes to convert from info to debug all look good to me.

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Marked as reviewed by ysr (Committer).

PR Review: https://git.openjdk.org/shenandoah/pull/540#pullrequestreview-2437601109