--- a/hotspot/src/share/vm/code/nmethod.cpp Tue Sep 16 14:39:11 2014 +0200
+++ b/hotspot/src/share/vm/code/nmethod.cpp Wed Sep 17 08:00:07 2014 +0200
@@ -500,7 +500,7 @@
CodeOffsets offsets;
offsets.set_value(CodeOffsets::Verified_Entry, vep_offset);
offsets.set_value(CodeOffsets::Frame_Complete, frame_complete);
- nm = new (native_nmethod_size) nmethod(method(), native_nmethod_size,
+ nm = new (native_nmethod_size, CompLevel_none) nmethod(method(), native_nmethod_size,
compile_id, &offsets,
code_buffer, frame_size,
basic_lock_owner_sp_offset,
@@ -538,7 +538,7 @@
offsets.set_value(CodeOffsets::Dtrace_trap, trap_offset);
offsets.set_value(CodeOffsets::Frame_Complete, frame_complete);
- nm = new (nmethod_size) nmethod(method(), nmethod_size,
+ nm = new (nmethod_size, CompLevel_none) nmethod(method(), nmethod_size,
&offsets, code_buffer, frame_size);
NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_nmethod(nm));
@@ -586,7 +586,7 @@
+ round_to(nul_chk_table->size_in_bytes(), oopSize)
+ round_to(debug_info->data_size() , oopSize);
- nm = new (nmethod_size)
+ nm = new (nmethod_size, comp_level)
nmethod(method(), nmethod_size, compile_id, entry_bci, offsets,
orig_pc_offset, debug_info, dependencies, code_buffer, frame_size,
oop_maps,
@@ -803,9 +803,11 @@
}
#endif // def HAVE_DTRACE_H
-void* nmethod::operator new(size_t size, int nmethod_size) throw() {
- // Not critical, may return null if there is too little continuous memory
- return CodeCache::allocate(nmethod_size);
+void* nmethod::operator new(size_t size, int nmethod_size, int comp_level) throw () {
+ // With a SegmentedCodeCache, nmethods are allocated on separate heaps and therefore do not share memory
+ // with critical CodeBlobs. We define the allocation as critical to make sure all code heap memory is used.
+ bool is_critical = SegmentedCodeCache;
+ return CodeCache::allocate(nmethod_size, CodeCache::get_code_blob_type(comp_level), is_critical);
}
nmethod::nmethod(
@@ -1530,7 +1532,7 @@
Events::log(JavaThread::current(), "flushing nmethod " INTPTR_FORMAT, this);
if (PrintMethodFlushing) {
tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb",
- _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024);
+ _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity(CodeCache::get_code_blob_type(_comp_level))/1024);
}
// We need to deallocate any ExceptionCache data.
@@ -1557,7 +1559,6 @@
CodeCache::free(this);
}
-
//
// Notify all classes this nmethod is dependent on that it is no
// longer dependent. This should only be called in two situations.
@@ -2418,15 +2419,18 @@
// Turn off dependency tracing while actually testing dependencies.
NOT_PRODUCT( FlagSetting fs(TraceDependencies, false) );
- typedef ResourceHashtable<DependencySignature, int, &DependencySignature::hash,
- &DependencySignature::equals, 11027> DepTable;
-
- DepTable* table = new DepTable();
+ typedef ResourceHashtable<DependencySignature, int, &DependencySignature::hash,
+ &DependencySignature::equals, 11027> DepTable;
+
+ DepTable* table = new DepTable();
// Iterate over live nmethods and check dependencies of all nmethods that are not
// marked for deoptimization. A particular dependency is only checked once.
- for(nmethod* nm = CodeCache::alive_nmethod(CodeCache::first()); nm != NULL; nm = CodeCache::alive_nmethod(CodeCache::next(nm))) {
- if (!nm->is_marked_for_deoptimization()) {
+ NMethodIterator iter;
+ while(iter.next()) {
+ nmethod* nm = iter.method();
+ // Only notify for live nmethods
+ if (nm->is_alive() && !nm->is_marked_for_deoptimization()) {
for (Dependencies::DepStream deps(nm); deps.next(); ) {
// Construct abstraction of a dependency.
DependencySignature* current_sig = new DependencySignature(deps);