RFR: 8336742: Shenandoah: Add more verbose logging/stats for mark termination attempts [v4]

[Aleksey Shipilev]

On Tue, 13 Aug 2024 16:17:53 GMT, William Kemper <wkemper at openjdk.org> wrote:

>> Neethu Prasad has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Address feedback on code style
>
> src/hotspot/share/gc/shenandoah/shenandoahPhaseTimings.hpp line 60:
> 
>> 58:   SHENANDOAH_PAR_PHASE_DO(conc_mark_roots,          "  CMR: ", f)                      \
>> 59:   f(conc_mark,                                      "Concurrent Marking")              \
>> 60:   f(conc_mark_satb_flush_rendezvous,                "  SATB Flush Rendezvous")         \
> 
> Could this be "Flush SATB" or "Flush SATB Handshakes" for consistency with https://github.com/openjdk/jdk/pull/20549?

`Flush SATB` would be good, I think.

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PR Review Comment: https://git.openjdk.org/jdk/pull/20318#discussion_r1715581820