Fri, 07 Jan 2011 10:42:32 -0500
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
Summary: Track allocated bytes in Thread's, update on TLAB retirement and direct allocation in Eden and tenured, add JNI methods for ThreadMXBean.
Reviewed-by: coleenp, kvn, dholmes, ysr
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25 #ifndef OS_SOLARIS_VM_THREAD_SOLARIS_INLINE_HPP
26 #define OS_SOLARIS_VM_THREAD_SOLARIS_INLINE_HPP
28 #include "runtime/atomic.hpp"
29 #include "runtime/prefetch.hpp"
30 #include "runtime/thread.hpp"
31 #include "runtime/threadLocalStorage.hpp"
32 #ifdef TARGET_OS_ARCH_solaris_x86
33 # include "atomic_solaris_x86.inline.hpp"
34 # include "orderAccess_solaris_x86.inline.hpp"
35 # include "prefetch_solaris_x86.inline.hpp"
36 #endif
37 #ifdef TARGET_OS_ARCH_solaris_sparc
38 # include "atomic_solaris_sparc.inline.hpp"
39 # include "orderAccess_solaris_sparc.inline.hpp"
40 # include "prefetch_solaris_sparc.inline.hpp"
41 #endif
43 // Thread::current is "hot" it's called > 128K times in the 1st 500 msecs of
44 // startup.
45 // ThreadLocalStorage::thread is warm -- it's called > 16K times in the same
46 // period. Thread::current() now calls ThreadLocalStorage::thread() directly.
47 // For SPARC, to avoid excessive register window spill-fill faults,
48 // we aggressively inline these routines.
50 inline Thread* ThreadLocalStorage::thread() {
51 // don't use specialized code if +UseMallocOnly -- may confuse Purify et al.
52 debug_only(if (UseMallocOnly) return get_thread_slow(););
54 uintptr_t raw = pd_raw_thread_id();
55 int ix = pd_cache_index(raw);
56 Thread* candidate = ThreadLocalStorage::_get_thread_cache[ix];
57 if (candidate->self_raw_id() == raw) {
58 // hit
59 return candidate;
60 } else {
61 return ThreadLocalStorage::get_thread_via_cache_slowly(raw, ix);
62 }
63 }
65 #endif // OS_SOLARIS_VM_THREAD_SOLARIS_INLINE_HPP