OpenJDK / jdk / hs
changeset 47389:5c8607bb3d2d
8187685: NMT: Tracking compiler memory usage of thread's resource area
Summary: Bias compiler thread's resource area to mtCompiler
Reviewed-by: kvn, coleenp
| author | zgu |
|---|---|
| date | Fri, 06 Oct 2017 22:40:31 -0400 |
| parents | 0fb1d501c408 |
| children | f5f98c9f1884 a5abbaac6165 |
| files | src/hotspot/share/memory/resourceArea.cpp src/hotspot/share/memory/resourceArea.hpp src/hotspot/share/runtime/thread.cpp |
| diffstat | 3 files changed, 18 insertions(+), 2 deletions(-) [+] |
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--- a/src/hotspot/share/memory/resourceArea.cpp Fri Oct 06 19:33:27 2017 -0400 +++ b/src/hotspot/share/memory/resourceArea.cpp Fri Oct 06 22:40:31 2017 -0400 @@ -1,5 +1,5 @@ /* - * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 1997, 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 @@ -27,6 +27,15 @@ #include "memory/resourceArea.hpp" #include "runtime/mutexLocker.hpp" #include "runtime/thread.inline.hpp" +#include "services/memTracker.hpp" + +void ResourceArea::bias_to(MEMFLAGS new_flags) { + if (new_flags != _flags) { + MemTracker::record_arena_free(_flags); + MemTracker::record_new_arena(new_flags); + _flags = new_flags; + } +} //------------------------------ResourceMark----------------------------------- debug_only(int ResourceArea::_warned;) // to suppress multiple warnings
--- a/src/hotspot/share/memory/resourceArea.hpp Fri Oct 06 19:33:27 2017 -0400 +++ b/src/hotspot/share/memory/resourceArea.hpp Fri Oct 06 22:40:31 2017 -0400 @@ -70,7 +70,11 @@ return (char*)Amalloc(size, alloc_failmode); } - debug_only(int nesting() const { return _nesting; }); + // Bias this resource area to specific memory type + // (by default, ResourceArea is tagged as mtThread, per-thread general purpose storage) + void bias_to(MEMFLAGS flags); + + debug_only(int nesting() const { return _nesting; }) };
--- a/src/hotspot/share/runtime/thread.cpp Fri Oct 06 19:33:27 2017 -0400 +++ b/src/hotspot/share/runtime/thread.cpp Fri Oct 06 22:40:31 2017 -0400 @@ -3263,6 +3263,9 @@ _buffer_blob = NULL; _compiler = NULL; + // Compiler uses resource area for compilation, let's bias it to mtCompiler + resource_area()->bias_to(mtCompiler); + #ifndef PRODUCT _ideal_graph_printer = NULL; #endif