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6962589: remove breadth first scanning code from parallel gc

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Remove the breadth-first copying order from ParallelScavenge and use depth-first by default.

Reviewed-by: jcoomes, ysr, johnc
This commit is contained in:
Antonios Printezis 2010-07-22 10:27:41 -04:00
parent 3a2b2b4fd8
commit 38ab95c64b
30 changed files with 63 additions and 541 deletions
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36
hotspot/src/share/vm/oops/instanceKlassKlass.cpp
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@ -292,41 +292,7 @@ int instanceKlassKlass::oop_adjust_pointers(oop obj) {
}
#ifndef SERIALGC
void instanceKlassKlass::oop_copy_contents(PSPromotionManager* pm, oop obj) {
assert(!pm->depth_first(), "invariant");
instanceKlass* ik = instanceKlass::cast(klassOop(obj));
ik->copy_static_fields(pm);
oop* loader_addr = ik->adr_class_loader();
if (PSScavenge::should_scavenge(loader_addr)) {
pm->claim_or_forward_breadth(loader_addr);
}
oop* pd_addr = ik->adr_protection_domain();
if (PSScavenge::should_scavenge(pd_addr)) {
pm->claim_or_forward_breadth(pd_addr);
}
oop* hk_addr = ik->adr_host_klass();
if (PSScavenge::should_scavenge(hk_addr)) {
pm->claim_or_forward_breadth(hk_addr);
}
oop* sg_addr = ik->adr_signers();
if (PSScavenge::should_scavenge(sg_addr)) {
pm->claim_or_forward_breadth(sg_addr);
}
oop* bsm_addr = ik->adr_bootstrap_method();
if (PSScavenge::should_scavenge(bsm_addr)) {
pm->claim_or_forward_breadth(bsm_addr);
}
klassKlass::oop_copy_contents(pm, obj);
}
void instanceKlassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
assert(pm->depth_first(), "invariant");
instanceKlass* ik = instanceKlass::cast(klassOop(obj));
ik->push_static_fields(pm);
@ -355,7 +321,7 @@ void instanceKlassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
pm->claim_or_forward_depth(bsm_addr);
}
klassKlass::oop_copy_contents(pm, obj);
klassKlass::oop_push_contents(pm, obj);
}
int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {