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src/share/vm/runtime/fprofiler.hpp@f34d701e952e (annotated)

src/share/vm/runtime/fprofiler.hpp

Tue, 27 Nov 2012 14:20:21 +0100

author

stefank

date

Tue, 27 Nov 2012 14:20:21 +0100

changeset 4299

f34d701e952e

parent 4165

fb19af007ffc

child 4542

db9981fd3124

permissions

-rw-r--r--

8003935: Simplify the needed includes for using Thread::current()
Reviewed-by: dholmes, rbackman, coleenp

duke@435	1	/*
coleenp@4037	2	* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_RUNTIME_FPROFILER_HPP
stefank@2314	26	#define SHARE_VM_RUNTIME_FPROFILER_HPP
stefank@2314	27
stefank@2314	28	#include "runtime/timer.hpp"
stefank@2314	29
duke@435	30	// a simple flat profiler for Java
duke@435	31
duke@435	32
duke@435	33	// Forward declaration of classes defined in this header file
duke@435	34	class ThreadProfiler;
duke@435	35	class ThreadProfilerMark;
duke@435	36	class FlatProfiler;
duke@435	37	class IntervalData;
duke@435	38
duke@435	39	// Declarations of classes defined only in the implementation.
duke@435	40	class ProfilerNode;
duke@435	41	class FlatProfilerTask;
duke@435	42
duke@435	43	enum TickPosition {
duke@435	44	tp_code,
duke@435	45	tp_native
duke@435	46	};
duke@435	47
duke@435	48	// One of these guys is constructed as we enter interesting regions
duke@435	49	// and destructed as we exit the region. While we are in the region
duke@435	50	// ticks are allotted to the region.
duke@435	51	class ThreadProfilerMark: public StackObj {
duke@435	52	public:
duke@435	53	// For now, the only thread-specific region is the class loader.
duke@435	54	enum Region { noRegion, classLoaderRegion, extraRegion, maxRegion };
duke@435	55
jprovino@4165	56	ThreadProfilerMark(Region) NOT_FPROF_RETURN;
jprovino@4165	57	~ThreadProfilerMark() NOT_FPROF_RETURN;
duke@435	58
duke@435	59	private:
duke@435	60	ThreadProfiler* _pp;
duke@435	61	Region _r;
duke@435	62	};
duke@435	63
jprovino@4165	64	#if INCLUDE_FPROF
duke@435	65
duke@435	66	class IntervalData VALUE_OBJ_CLASS_SPEC {
duke@435	67	// Just to keep these things all together
duke@435	68	private:
duke@435	69	int _interpreted;
duke@435	70	int _compiled;
duke@435	71	int _native;
duke@435	72	int _compiling;
duke@435	73	public:
duke@435	74	int interpreted() {
duke@435	75	return _interpreted;
duke@435	76	}
duke@435	77	int compiled() {
duke@435	78	return _compiled;
duke@435	79	}
duke@435	80	int native() {
duke@435	81	return _native;
duke@435	82	}
duke@435	83	int compiling() {
duke@435	84	return _compiling;
duke@435	85	}
duke@435	86	int total() {
duke@435	87	return (interpreted() + compiled() + native() + compiling());
duke@435	88	}
duke@435	89	void inc_interpreted() {
duke@435	90	_interpreted += 1;
duke@435	91	}
duke@435	92	void inc_compiled() {
duke@435	93	_compiled += 1;
duke@435	94	}
duke@435	95	void inc_native() {
duke@435	96	_native += 1;
duke@435	97	}
duke@435	98	void inc_compiling() {
duke@435	99	_compiling += 1;
duke@435	100	}
duke@435	101	void reset() {
duke@435	102	_interpreted = 0;
duke@435	103	_compiled = 0;
duke@435	104	_native = 0;
duke@435	105	_compiling = 0;
duke@435	106	}
duke@435	107	static void print_header(outputStream* st);
duke@435	108	void print_data(outputStream* st);
duke@435	109	};
jprovino@4165	110	#endif // INCLUDE_FPROF
duke@435	111
zgu@3900	112	class ThreadProfiler: public CHeapObj<mtInternal> {
duke@435	113	public:
jprovino@4165	114	ThreadProfiler() NOT_FPROF_RETURN;
jprovino@4165	115	~ThreadProfiler() NOT_FPROF_RETURN;
duke@435	116
duke@435	117	// Resets the profiler
jprovino@4165	118	void reset() NOT_FPROF_RETURN;
duke@435	119
duke@435	120	// Activates the profiler for a certain thread
jprovino@4165	121	void engage() NOT_FPROF_RETURN;
duke@435	122
duke@435	123	// Deactivates the profiler
jprovino@4165	124	void disengage() NOT_FPROF_RETURN;
duke@435	125
duke@435	126	// Prints the collected profiling information
jprovino@4165	127	void print(const char* thread_name) NOT_FPROF_RETURN;
duke@435	128
duke@435	129	// Garbage Collection Support
jprovino@4165	130	void oops_do(OopClosure* f) NOT_FPROF_RETURN;
duke@435	131
jprovino@4165	132	#if INCLUDE_FPROF
duke@435	133	private:
duke@435	134	// for recording ticks.
duke@435	135	friend class ProfilerNode;
duke@435	136	char* area_bottom; // preallocated area for pnodes
duke@435	137	char* area_top;
duke@435	138	char* area_limit;
duke@435	139	static int table_size;
duke@435	140	ProfilerNode** table;
duke@435	141
duke@435	142	private:
sgoldman@542	143	void record_interpreted_tick(JavaThread* thread, frame fr, TickPosition where, int* ticks);
duke@435	144	void record_compiled_tick (JavaThread* thread, frame fr, TickPosition where);
coleenp@4037	145	void interpreted_update(Method* method, TickPosition where);
coleenp@4037	146	void compiled_update (Method* method, TickPosition where);
coleenp@4037	147	void stub_update (Method* method, const char* name, TickPosition where);
duke@435	148	void adapter_update (TickPosition where);
duke@435	149
duke@435	150	void runtime_stub_update(const CodeBlob* stub, const char* name, TickPosition where);
duke@435	151	void unknown_compiled_update (const CodeBlob* cb, TickPosition where);
duke@435	152
duke@435	153	void vm_update (TickPosition where);
duke@435	154	void vm_update (const char* name, TickPosition where);
duke@435	155
duke@435	156	void record_tick_for_running_frame(JavaThread* thread, frame fr);
duke@435	157	void record_tick_for_calling_frame(JavaThread* thread, frame fr);
duke@435	158
duke@435	159	void initialize();
duke@435	160
duke@435	161	static int entry(int value);
duke@435	162
duke@435	163
duke@435	164	private:
duke@435	165	friend class FlatProfiler;
duke@435	166	void record_tick(JavaThread* thread);
duke@435	167	bool engaged;
duke@435	168	// so we can do percentages for this thread, and quick checks for activity
duke@435	169	int thread_ticks;
duke@435	170	int compiler_ticks;
duke@435	171	int interpreter_ticks;
duke@435	172
duke@435	173	public:
duke@435	174	void inc_thread_ticks() { thread_ticks += 1; }
duke@435	175
duke@435	176	private:
duke@435	177	friend class ThreadProfilerMark;
duke@435	178	// counters for thread-specific regions
duke@435	179	bool region_flag[ThreadProfilerMark::maxRegion];
duke@435	180	int class_loader_ticks;
duke@435	181	int extra_ticks;
duke@435	182
duke@435	183	private:
duke@435	184	// other thread-specific regions
duke@435	185	int blocked_ticks;
duke@435	186	enum UnknownTickSites {
duke@435	187	ut_null_method,
duke@435	188	ut_vtable_stubs,
duke@435	189	ut_running_frame,
duke@435	190	ut_calling_frame,
duke@435	191	ut_no_pc,
duke@435	192	ut_no_last_Java_frame,
duke@435	193	ut_unknown_thread_state,
duke@435	194	ut_end
duke@435	195	};
duke@435	196	int unknown_ticks_array[ut_end];
duke@435	197	int unknown_ticks() {
duke@435	198	int result = 0;
duke@435	199	for (int ut = 0; ut < ut_end; ut += 1) {
duke@435	200	result += unknown_ticks_array[ut];
duke@435	201	}
duke@435	202	return result;
duke@435	203	}
duke@435	204
duke@435	205	elapsedTimer timer;
duke@435	206
duke@435	207	// For interval timing
duke@435	208	private:
duke@435	209	IntervalData _interval_data;
duke@435	210	IntervalData interval_data() {
duke@435	211	return _interval_data;
duke@435	212	}
duke@435	213	IntervalData* interval_data_ref() {
duke@435	214	return &_interval_data;
duke@435	215	}
jprovino@4165	216	#endif // INCLUDE_FPROF
duke@435	217	};
duke@435	218
duke@435	219	class FlatProfiler: AllStatic {
duke@435	220	public:
jprovino@4165	221	static void reset() NOT_FPROF_RETURN ;
jprovino@4165	222	static void engage(JavaThread* mainThread, bool fullProfile) NOT_FPROF_RETURN ;
jprovino@4165	223	static void disengage() NOT_FPROF_RETURN ;
jprovino@4165	224	static void print(int unused) NOT_FPROF_RETURN ;
jprovino@4165	225	static bool is_active() NOT_FPROF_RETURN_(false) ;
duke@435	226
duke@435	227	// This is NULL if each thread has its own thread profiler,
duke@435	228	// else this is the single thread profiler used by all threads.
duke@435	229	// In particular it makes a difference during garbage collection,
duke@435	230	// where you only want to traverse each thread profiler once.
jprovino@4165	231	static ThreadProfiler* get_thread_profiler() NOT_FPROF_RETURN_(NULL);
duke@435	232
duke@435	233	// Garbage Collection Support
jprovino@4165	234	static void oops_do(OopClosure* f) NOT_FPROF_RETURN ;
duke@435	235
duke@435	236	// Support for disassembler to inspect the PCRecorder
duke@435	237
duke@435	238	// Returns the start address for a given pc
duke@435	239	// NULL is returned if the PCRecorder is inactive
jprovino@4165	240	static address bucket_start_for(address pc) NOT_FPROF_RETURN_(NULL);
duke@435	241
duke@435	242	enum { MillisecsPerTick = 10 }; // ms per profiling ticks
duke@435	243
duke@435	244	// Returns the number of ticks recorded for the bucket
duke@435	245	// pc belongs to.
jprovino@4165	246	static int bucket_count_for(address pc) NOT_FPROF_RETURN_(0);
duke@435	247
jprovino@4165	248	#if INCLUDE_FPROF
duke@435	249
duke@435	250	private:
duke@435	251	static bool full_profile() {
duke@435	252	return full_profile_flag;
duke@435	253	}
duke@435	254
duke@435	255	friend class ThreadProfiler;
duke@435	256	// the following group of ticks cover everything that's not attributed to individual Java methods
duke@435	257	static int received_gc_ticks; // ticks during which gc was active
duke@435	258	static int vm_operation_ticks; // total ticks in vm_operations other than GC
duke@435	259	static int threads_lock_ticks; // the number of times we couldn't get the Threads_lock without blocking
duke@435	260	static int blocked_ticks; // ticks when the thread was blocked.
duke@435	261	static int class_loader_ticks; // total ticks in class loader
duke@435	262	static int extra_ticks; // total ticks an extra temporary measuring
duke@435	263	static int compiler_ticks; // total ticks in compilation
duke@435	264	static int interpreter_ticks; // ticks in unknown interpreted method
duke@435	265	static int deopt_ticks; // ticks in deoptimization
duke@435	266	static int unknown_ticks; // ticks that cannot be categorized
duke@435	267	static int received_ticks; // ticks that were received by task
duke@435	268	static int delivered_ticks; // ticks that were delivered by task
duke@435	269	static int non_method_ticks() {
duke@435	270	return
duke@435	271	( received_gc_ticks
duke@435	272	+ vm_operation_ticks
duke@435	273	+ deopt_ticks
duke@435	274	+ threads_lock_ticks
duke@435	275	+ blocked_ticks
duke@435	276	+ compiler_ticks
duke@435	277	+ interpreter_ticks
duke@435	278	+ unknown_ticks );
duke@435	279	}
duke@435	280	static elapsedTimer timer;
duke@435	281
duke@435	282	// Counts of each of the byte codes
duke@435	283	static int* bytecode_ticks;
duke@435	284	static int* bytecode_ticks_stub;
duke@435	285	static void print_byte_code_statistics();
duke@435	286
duke@435	287	// the ticks below are for continuous profiling (to adjust recompilation, etc.)
duke@435	288	static int all_ticks; // total count of ticks received so far
duke@435	289	static int all_int_ticks; // ticks in interpreter
duke@435	290	static int all_comp_ticks; // ticks in compiled code (+ native)
duke@435	291	static bool full_profile_flag; // collecting full profile?
duke@435	292
duke@435	293	// to accumulate thread-specific data
duke@435	294	// if we aren't profiling individual threads.
duke@435	295	static ThreadProfiler* thread_profiler;
duke@435	296	static ThreadProfiler* vm_thread_profiler;
duke@435	297
duke@435	298	static void allocate_table();
duke@435	299
duke@435	300	// The task that periodically interrupts things.
duke@435	301	friend class FlatProfilerTask;
duke@435	302	static FlatProfilerTask* task;
duke@435	303	static void record_vm_operation();
duke@435	304	static void record_vm_tick();
duke@435	305	static void record_thread_ticks();
duke@435	306
duke@435	307	// For interval analysis
duke@435	308	private:
duke@435	309	static int interval_ticks_previous; // delivered_ticks from the last interval
duke@435	310	static void interval_record_thread(ThreadProfiler* tp); // extract ticks from ThreadProfiler.
duke@435	311	static void interval_print(); // print interval data.
duke@435	312	static void interval_reset(); // reset interval data.
duke@435	313	enum {interval_print_size = 10};
duke@435	314	static IntervalData* interval_data;
jprovino@4165	315	#endif // INCLUDE_FPROF
duke@435	316	};
stefank@2314	317
stefank@2314	318	#endif // SHARE_VM_RUNTIME_FPROFILER_HPP