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8139551: Scalability problem with redefinition - multiple code cache walks

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Walk code cache and deoptimize once per redefinition.

Reviewed-by: sspitsyn, dlong
This commit is contained in:
Coleen Phillimore 2019-02-05 10:40:25 -05:00
parent fc31592f6e
commit 8f5e561d19
14 changed files with 244 additions and 74 deletions
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22
src/hotspot/share/aot/aotCodeHeap.cpp
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@ -690,6 +690,28 @@ bool AOTCodeHeap::is_dependent_method(Klass* dependee, AOTCompiledMethod* aot) {
return false;
}
void AOTCodeHeap::mark_evol_dependent_methods(InstanceKlass* dependee) {
AOTKlassData* klass_data = find_klass(dependee);
if (klass_data == NULL) {
return; // no AOT records for this class - no dependencies
}
if (!dependee->has_passed_fingerprint_check()) {
return; // different class
}
int methods_offset = klass_data->_dependent_methods_offset;
if (methods_offset >= 0) {
address methods_cnt_adr = _dependencies + methods_offset;
int methods_cnt = *(int*)methods_cnt_adr;
int* indexes = (int*)(methods_cnt_adr + 4);
for (int i = 0; i < methods_cnt; ++i) {
int code_id = indexes[i];
AOTCompiledMethod* aot = _code_to_aot[code_id]._aot;
aot->mark_for_deoptimization(false);
}
}
}
void AOTCodeHeap::sweep_dependent_methods(int* indexes, int methods_cnt) {
int marked = 0;
for (int i = 0; i < methods_cnt; ++i) {