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8073705: more performance issues in class redefinition

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Optimize the method pointer adjustments for prev klass versions and MNT

Reviewed-by: dcubed, coleenp
This commit is contained in:
Serguei Spitsyn 2015-04-27 19:51:00 -07:00
parent 8cb760c280
commit f7c143cbb2
7 changed files with 36 additions and 94 deletions
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10
hotspot/src/share/vm/prims/jvmtiRedefineClasses.cpp
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@ -3433,10 +3433,7 @@ void VM_RedefineClasses::AdjustCpoolCacheAndVtable::do_klass(Klass* k) {
pv_node = pv_node->previous_versions()) {
cp_cache = pv_node->constants()->cache();
if (cp_cache != NULL) {
cp_cache->adjust_method_entries(_matching_old_methods,
_matching_new_methods,
_matching_methods_length,
&trace_name_printed);
cp_cache->adjust_method_entries(pv_node, &trace_name_printed);
}
}
}
@ -4085,10 +4082,7 @@ void VM_RedefineClasses::redefine_single_class(jclass the_jclass,
MemberNameTable* mnt = the_class->member_names();
if (mnt != NULL) {
bool trace_name_printed = false;
mnt->adjust_method_entries(_matching_old_methods,
_matching_new_methods,
_matching_methods_length,
&trace_name_printed);
mnt->adjust_method_entries(the_class(), &trace_name_printed);
}
// Fix Resolution Error table also to remove old constant pools