archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-18 18:14:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8165443: Free Collection Set serial phase takes very long on large heaps

Browse source 
Reviewed-by: tschatzl, kbarrett
This commit is contained in:
Stefan Johansson 2019-12-09 10:26:41 +01:00
parent 4c4d6cdc92
commit 9cabfa82ff
16 changed files with 511 additions and 262 deletions
Download patch file Download diff file Expand all files Collapse all files

56
src/hotspot/share/gc/g1/heapRegionSet.cpp
View file

@ -90,6 +90,12 @@ void FreeRegionList::set_unrealistically_long_length(uint len) {
_unrealistically_long_length = len;
}
void FreeRegionList::abandon() {
check_mt_safety();
clear();
verify_optional();
}
void FreeRegionList::remove_all() {
check_mt_safety();
verify_optional();
@ -112,10 +118,9 @@ void FreeRegionList::remove_all() {
verify_optional();
}
void FreeRegionList::add_ordered(FreeRegionList* from_list) {
void FreeRegionList::add_list_common_start(FreeRegionList* from_list) {
check_mt_safety();
from_list->check_mt_safety();
verify_optional();
from_list->verify_optional();
@ -138,6 +143,47 @@ void FreeRegionList::add_ordered(FreeRegionList* from_list) {
hr->set_containing_set(this);
}
#endif // ASSERT
}
void FreeRegionList::add_list_common_end(FreeRegionList* from_list) {
_length += from_list->length();
from_list->clear();
verify_optional();
from_list->verify_optional();
}
void FreeRegionList::append_ordered(FreeRegionList* from_list) {
add_list_common_start(from_list);
if (from_list->is_empty()) {
return;
}
if (is_empty()) {
// Make from_list the current list.
assert_free_region_list(length() == 0 && _tail == NULL, "invariant");
_head = from_list->_head;
_tail = from_list->_tail;
} else {
// Add the from_list to the end of the current list.
assert(_tail->hrm_index() < from_list->_head->hrm_index(), "Should be sorted %u < %u",
_tail->hrm_index(), from_list->_head->hrm_index());
_tail->set_next(from_list->_head);
from_list->_head->set_prev(_tail);
_tail = from_list->_tail;
}
add_list_common_end(from_list);
}
void FreeRegionList::add_ordered(FreeRegionList* from_list) {
add_list_common_start(from_list);
if (from_list->is_empty()) {
return;
}
if (is_empty()) {
assert_free_region_list(length() == 0 && _tail == NULL, "invariant");
@ -178,11 +224,7 @@ void FreeRegionList::add_ordered(FreeRegionList* from_list) {
}
}
_length += from_list->length();
from_list->clear();
verify_optional();
from_list->verify_optional();
add_list_common_end(from_list);
}
void FreeRegionList::remove_starting_at(HeapRegion* first, uint num_regions) {