Remark time not added to G1 GarbageCollectorMXBeans

[Thomas Schatzl]

Hi,

On 16.11.22 11:31, Yude Lin wrote:
> Hi GC team,
> 
> 
> I noticed the GarbageCollectorMXBeans for G1 do not count the Remark time,
> whereas jstat does include the Remark time in the 'CGCT' field.
> 
> And for CMS, the Remark time seems to count towards the 
> 'ConcurrentMarkSweep' bean.
> 
> This is a little inconsistent IMHO. In particular,
> for applications transitioning from CMS to G1, we will see a sharp decline
> in GC time (through stats monitoring&streaming service that uses GC beans).
> This could be misleading for users, who don't always understand the
> details behind the stats collection.
> 
> Should we add the remark as well as cleanup time to a G1 bean?
> 

   no objections from me. The specification for the beans is unspecific 
enough to allow that.

Thomas