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8049421: G1 Class Unloading after completing a concurrent mark cycle

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Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
This commit is contained in:
Stefan Karlsson 2014-07-07 10:12:40 +02:00
parent ef1e9b3c80
commit 1b001a2afd
75 changed files with 2169 additions and 874 deletions
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22
hotspot/src/share/vm/memory/defNewGeneration.cpp
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@ -614,6 +614,9 @@ void DefNewGeneration::collect(bool full,
KlassScanClosure klass_scan_closure(&fsc_with_no_gc_barrier,
gch->rem_set()->klass_rem_set());
CLDToKlassAndOopClosure cld_scan_closure(&klass_scan_closure,
&fsc_with_no_gc_barrier,
false);
set_promo_failure_scan_stack_closure(&fsc_with_no_gc_barrier);
FastEvacuateFollowersClosure evacuate_followers(gch, _level, this,
@ -623,16 +626,15 @@ void DefNewGeneration::collect(bool full,
assert(gch->no_allocs_since_save_marks(0),
"save marks have not been newly set.");
int so = SharedHeap::SO_AllClasses | SharedHeap::SO_Strings | SharedHeap::SO_ScavengeCodeCache;
gch->gen_process_strong_roots(_level,
true, // Process younger gens, if any,
// as strong roots.
true, // activate StrongRootsScope
SharedHeap::ScanningOption(so),
&fsc_with_no_gc_barrier,
&fsc_with_gc_barrier,
&klass_scan_closure);
gch->gen_process_roots(_level,
true, // Process younger gens, if any,
// as strong roots.
true, // activate StrongRootsScope
SharedHeap::SO_ScavengeCodeCache,
GenCollectedHeap::StrongAndWeakRoots,
&fsc_with_no_gc_barrier,
&fsc_with_gc_barrier,
&cld_scan_closure);
// "evacuate followers".
evacuate_followers.do_void();