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8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop

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Stop allocating compiler profiling metadata when metaspace is full.

Reviewed-by: kvn, anoll
This commit is contained in:
Coleen Phillimore 2014-10-30 18:38:42 -04:00
parent b301b207b3
commit 4c036f5730
5 changed files with 62 additions and 4 deletions
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8
hotspot/src/share/vm/classfile/classLoaderData.cpp
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@ -553,6 +553,7 @@ ClassLoaderData* ClassLoaderDataGraph::_saved_unloading = NULL;
ClassLoaderData* ClassLoaderDataGraph::_saved_head = NULL;
bool ClassLoaderDataGraph::_should_purge = false;
bool ClassLoaderDataGraph::_metaspace_oom = false;
// Add a new class loader data node to the list. Assign the newly created
// ClassLoaderData into the java/lang/ClassLoader object as a hidden field
@ -804,12 +805,17 @@ void ClassLoaderDataGraph::purge() {
ClassLoaderData* list = _unloading;
_unloading = NULL;
ClassLoaderData* next = list;
bool classes_unloaded = false;
while (next != NULL) {
ClassLoaderData* purge_me = next;
next = purge_me->next();
delete purge_me;
classes_unloaded = true;
}
if (classes_unloaded) {
Metaspace::purge();
set_metaspace_oom(false);
}
Metaspace::purge();
}
void ClassLoaderDataGraph::post_class_unload_events(void) {