RFR: 8319204: G1: Change G1CMTask::_termination_time_ms to wallclock time

[Albert Mingkun Yang]

On Wed, 1 Nov 2023 09:27:41 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Simple switching from thread-cpu to wall-clock time for termination duration metric.

Thanks for the review.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/16446#issuecomment-1798652164