P4
Some closures are set up in G1ParTask::work before g1_process_strong_roots is called, for example the KlassScanClosure, CLDClosure and CodeBlobClosures.
These closures will then bypass the accounting done using the BufferingOopClosure in g1_process_strong_roots to differentiate ext root scan time versus object copy times.
ILW=LHH => P4
I=L, mostly impacts logging, sligtly impacts object copy time predictions
L=H, happens every time
W=H, no known workaround
These closures will then bypass the accounting done using the BufferingOopClosure in g1_process_strong_roots to differentiate ext root scan time versus object copy times.
ILW=LHH => P4
I=L, mostly impacts logging, sligtly impacts object copy time predictions
L=H, happens every time
W=H, no known workaround