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8186770: NMT: Report metadata information in NMT summary

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Added metadata statistics in NMT summary report

Reviewed-by: adinn, coleenp
This commit is contained in:
Zhengyu Gu 2017-09-28 09:56:54 -04:00
parent 394e6a8318
commit c4ba1b52b3
8 changed files with 191 additions and 12 deletions
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28
src/hotspot/share/services/virtualMemoryTracker.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -28,6 +28,7 @@
#if INCLUDE_NMT
#include "memory/allocation.hpp"
#include "memory/metaspace.hpp"
#include "services/allocationSite.hpp"
#include "services/nmtCommon.hpp"
#include "utilities/linkedlist.hpp"
@ -419,6 +420,31 @@ class VirtualMemoryTracker : AllStatic {
};
class MetaspaceSnapshot : public ResourceObj {
private:
size_t _reserved_in_bytes[Metaspace::MetadataTypeCount];
size_t _committed_in_bytes[Metaspace::MetadataTypeCount];
size_t _used_in_bytes[Metaspace::MetadataTypeCount];
size_t _free_in_bytes[Metaspace::MetadataTypeCount];
public:
MetaspaceSnapshot();
size_t reserved_in_bytes(Metaspace::MetadataType type) const { assert_valid_metadata_type(type); return _reserved_in_bytes[type]; }
size_t committed_in_bytes(Metaspace::MetadataType type) const { assert_valid_metadata_type(type); return _committed_in_bytes[type]; }
size_t used_in_bytes(Metaspace::MetadataType type) const { assert_valid_metadata_type(type); return _used_in_bytes[type]; }
size_t free_in_bytes(Metaspace::MetadataType type) const { assert_valid_metadata_type(type); return _free_in_bytes[type]; }
static void snapshot(MetaspaceSnapshot& s);
private:
static void snapshot(Metaspace::MetadataType type, MetaspaceSnapshot& s);
static void assert_valid_metadata_type(Metaspace::MetadataType type) {
assert(type == Metaspace::ClassType || type == Metaspace::NonClassType,
"Invalid metadata type");
}
};
#endif // INCLUDE_NMT
#endif // SHARE_VM_SERVICES_VIRTUAL_MEMORY_TRACKER_HPP