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8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty

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Allocate medium chunks for class metaspace when class loader has lots of classes

Reviewed-by: mgerdin, jmasa
This commit is contained in:
Coleen Phillimore 2013-07-02 08:42:37 -04:00
parent e7b16a5e79
commit 1e7c006d39
4 changed files with 61 additions and 46 deletions
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13
hotspot/src/share/vm/memory/universe.hpp
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@ -177,10 +177,12 @@ class Universe: AllStatic {
static LatestMethodOopCache* _finalizer_register_cache; // static method for registering finalizable objects
static LatestMethodOopCache* _loader_addClass_cache; // method for registering loaded classes in class loader vector
static ActiveMethodOopsCache* _reflect_invoke_cache; // method for security checks
static oop _out_of_memory_error_java_heap; // preallocated error object (no backtrace)
static oop _out_of_memory_error_perm_gen; // preallocated error object (no backtrace)
static oop _out_of_memory_error_array_size;// preallocated error object (no backtrace)
static oop _out_of_memory_error_gc_overhead_limit; // preallocated error object (no backtrace)
// preallocated error objects (no backtrace)
static oop _out_of_memory_error_java_heap;
static oop _out_of_memory_error_metaspace;
static oop _out_of_memory_error_class_metaspace;
static oop _out_of_memory_error_array_size;
static oop _out_of_memory_error_gc_overhead_limit;
static Array<int>* _the_empty_int_array; // Canonicalized int array
static Array<u2>* _the_empty_short_array; // Canonicalized short array
@ -348,7 +350,8 @@ class Universe: AllStatic {
// may or may not have a backtrace. If error has a backtrace then the stack trace is already
// filled in.
static oop out_of_memory_error_java_heap() { return gen_out_of_memory_error(_out_of_memory_error_java_heap); }
static oop out_of_memory_error_perm_gen() { return gen_out_of_memory_error(_out_of_memory_error_perm_gen); }
static oop out_of_memory_error_metaspace() { return gen_out_of_memory_error(_out_of_memory_error_metaspace); }
static oop out_of_memory_error_class_metaspace() { return gen_out_of_memory_error(_out_of_memory_error_class_metaspace); }
static oop out_of_memory_error_array_size() { return gen_out_of_memory_error(_out_of_memory_error_array_size); }
static oop out_of_memory_error_gc_overhead_limit() { return gen_out_of_memory_error(_out_of_memory_error_gc_overhead_limit); }