--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/compiler/compileBroker.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,386 @@
+/*
+ * Copyright (c) 1999, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_COMPILER_COMPILEBROKER_HPP
+#define SHARE_VM_COMPILER_COMPILEBROKER_HPP
+
+#include "ci/compilerInterface.hpp"
+#include "compiler/abstractCompiler.hpp"
+#include "compiler/compileTask.hpp"
+#include "compiler/compilerDirectives.hpp"
+#include "runtime/perfData.hpp"
+#include "trace/tracing.hpp"
+#include "utilities/stack.hpp"
+#if INCLUDE_JVMCI
+#include "jvmci/jvmciCompiler.hpp"
+#endif
+
+class nmethod;
+class nmethodLocker;
+
+// CompilerCounters
+//
+// Per Compiler Performance Counters.
+//
+class CompilerCounters : public CHeapObj<mtCompiler> {
+
+ public:
+ enum {
+ cmname_buffer_length = 160
+ };
+
+ private:
+
+ char _current_method[cmname_buffer_length];
+ int _compile_type;
+
+ public:
+ CompilerCounters();
+
+ // these methods should be called in a thread safe context
+
+ void set_current_method(const char* method) {
+ strncpy(_current_method, method, (size_t)cmname_buffer_length-1);
+ _current_method[cmname_buffer_length-1] = '\0';
+ }
+
+ char* current_method() { return _current_method; }
+
+ void set_compile_type(int compile_type) {
+ _compile_type = compile_type;
+ }
+
+ int compile_type() { return _compile_type; }
+
+};
+
+// CompileQueue
+//
+// A list of CompileTasks.
+class CompileQueue : public CHeapObj<mtCompiler> {
+ private:
+ const char* _name;
+
+ CompileTask* _first;
+ CompileTask* _last;
+
+ CompileTask* _first_stale;
+
+ int _size;
+
+ void purge_stale_tasks();
+ public:
+ CompileQueue(const char* name) {
+ _name = name;
+ _first = NULL;
+ _last = NULL;
+ _size = 0;
+ _first_stale = NULL;
+ }
+
+ const char* name() const { return _name; }
+
+ void add(CompileTask* task);
+ void remove(CompileTask* task);
+ void remove_and_mark_stale(CompileTask* task);
+ CompileTask* first() { return _first; }
+ CompileTask* last() { return _last; }
+
+ CompileTask* get();
+
+ bool is_empty() const { return _first == NULL; }
+ int size() const { return _size; }
+
+
+ // Redefine Classes support
+ void mark_on_stack();
+ void free_all();
+ void print_tty();
+ void print(outputStream* st = tty);
+
+ ~CompileQueue() {
+ assert (is_empty(), " Compile Queue must be empty");
+ }
+};
+
+// CompileTaskWrapper
+//
+// Assign this task to the current thread. Deallocate the task
+// when the compilation is complete.
+class CompileTaskWrapper : StackObj {
+public:
+ CompileTaskWrapper(CompileTask* task);
+ ~CompileTaskWrapper();
+};
+
+// Compilation
+//
+// The broker for all compilation requests.
+class CompileBroker: AllStatic {
+ friend class Threads;
+ friend class CompileTaskWrapper;
+
+ public:
+ enum {
+ name_buffer_length = 100
+ };
+
+ // Compile type Information for print_last_compile() and CompilerCounters
+ enum { no_compile, normal_compile, osr_compile, native_compile };
+ static int assign_compile_id (const methodHandle& method, int osr_bci);
+
+
+ private:
+ static bool _initialized;
+ static volatile bool _should_block;
+
+ // This flag can be used to stop compilation or turn it back on
+ static volatile jint _should_compile_new_jobs;
+
+ // The installed compiler(s)
+ static AbstractCompiler* _compilers[2];
+
+ // These counters are used for assigning id's to each compilation
+ static volatile jint _compilation_id;
+ static volatile jint _osr_compilation_id;
+
+ static int _last_compile_type;
+ static int _last_compile_level;
+ static char _last_method_compiled[name_buffer_length];
+
+ static CompileQueue* _c2_compile_queue;
+ static CompileQueue* _c1_compile_queue;
+
+ // performance counters
+ static PerfCounter* _perf_total_compilation;
+ static PerfCounter* _perf_native_compilation;
+ static PerfCounter* _perf_osr_compilation;
+ static PerfCounter* _perf_standard_compilation;
+
+ static PerfCounter* _perf_total_bailout_count;
+ static PerfCounter* _perf_total_invalidated_count;
+ static PerfCounter* _perf_total_compile_count;
+ static PerfCounter* _perf_total_native_compile_count;
+ static PerfCounter* _perf_total_osr_compile_count;
+ static PerfCounter* _perf_total_standard_compile_count;
+
+ static PerfCounter* _perf_sum_osr_bytes_compiled;
+ static PerfCounter* _perf_sum_standard_bytes_compiled;
+ static PerfCounter* _perf_sum_nmethod_size;
+ static PerfCounter* _perf_sum_nmethod_code_size;
+
+ static PerfStringVariable* _perf_last_method;
+ static PerfStringVariable* _perf_last_failed_method;
+ static PerfStringVariable* _perf_last_invalidated_method;
+ static PerfVariable* _perf_last_compile_type;
+ static PerfVariable* _perf_last_compile_size;
+ static PerfVariable* _perf_last_failed_type;
+ static PerfVariable* _perf_last_invalidated_type;
+
+ // Timers and counters for generating statistics
+ static elapsedTimer _t_total_compilation;
+ static elapsedTimer _t_osr_compilation;
+ static elapsedTimer _t_standard_compilation;
+ static elapsedTimer _t_invalidated_compilation;
+ static elapsedTimer _t_bailedout_compilation;
+
+ static int _total_compile_count;
+ static int _total_bailout_count;
+ static int _total_invalidated_count;
+ static int _total_native_compile_count;
+ static int _total_osr_compile_count;
+ static int _total_standard_compile_count;
+ static int _sum_osr_bytes_compiled;
+ static int _sum_standard_bytes_compiled;
+ static int _sum_nmethod_size;
+ static int _sum_nmethod_code_size;
+ static long _peak_compilation_time;
+
+ static volatile jint _print_compilation_warning;
+
+ static JavaThread* make_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, AbstractCompiler* comp, bool compiler_thread, TRAPS);
+ static void init_compiler_sweeper_threads(int c1_compiler_count, int c2_compiler_count);
+ static bool compilation_is_complete (const methodHandle& method, int osr_bci, int comp_level);
+ static bool compilation_is_prohibited(const methodHandle& method, int osr_bci, int comp_level, bool excluded);
+ static void preload_classes (const methodHandle& method, TRAPS);
+
+ static CompileTask* create_compile_task(CompileQueue* queue,
+ int compile_id,
+ const methodHandle& method,
+ int osr_bci,
+ int comp_level,
+ const methodHandle& hot_method,
+ int hot_count,
+ CompileTask::CompileReason compile_reason,
+ bool blocking);
+ static void wait_for_completion(CompileTask* task);
+#if INCLUDE_JVMCI
+ static bool wait_for_jvmci_completion(JVMCICompiler* comp, CompileTask* task, JavaThread* thread);
+#endif
+
+ static void invoke_compiler_on_method(CompileTask* task);
+ static void post_compile(CompilerThread* thread, CompileTask* task, EventCompilation& event, bool success, ciEnv* ci_env);
+ static void set_last_compile(CompilerThread *thread, const methodHandle& method, bool is_osr, int comp_level);
+ static void push_jni_handle_block();
+ static void pop_jni_handle_block();
+ static void collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task);
+
+ static void compile_method_base(const methodHandle& method,
+ int osr_bci,
+ int comp_level,
+ const methodHandle& hot_method,
+ int hot_count,
+ CompileTask::CompileReason compile_reason,
+ bool blocking,
+ Thread* thread);
+
+ static CompileQueue* compile_queue(int comp_level);
+ static bool init_compiler_runtime();
+ static void shutdown_compiler_runtime(AbstractCompiler* comp, CompilerThread* thread);
+
+public:
+
+ static DirectivesStack* dirstack();
+ static void set_dirstack(DirectivesStack* stack);
+
+ enum {
+ // The entry bci used for non-OSR compilations.
+ standard_entry_bci = InvocationEntryBci
+ };
+
+ static AbstractCompiler* compiler(int comp_level) {
+ if (is_c2_compile(comp_level)) return _compilers[1]; // C2
+ if (is_c1_compile(comp_level)) return _compilers[0]; // C1
+ return NULL;
+ }
+
+ static bool compilation_is_in_queue(const methodHandle& method);
+ static void print_compile_queues(outputStream* st);
+ static void print_directives(outputStream* st);
+ static int queue_size(int comp_level) {
+ CompileQueue *q = compile_queue(comp_level);
+ return q != NULL ? q->size() : 0;
+ }
+ static void compilation_init(TRAPS);
+ static void init_compiler_thread_log();
+ static nmethod* compile_method(const methodHandle& method,
+ int osr_bci,
+ int comp_level,
+ const methodHandle& hot_method,
+ int hot_count,
+ CompileTask::CompileReason compile_reason,
+ Thread* thread);
+
+ static nmethod* compile_method(const methodHandle& method,
+ int osr_bci,
+ int comp_level,
+ const methodHandle& hot_method,
+ int hot_count,
+ CompileTask::CompileReason compile_reason,
+ DirectiveSet* directive,
+ Thread* thread);
+
+ // Acquire any needed locks and assign a compile id
+ static uint assign_compile_id_unlocked(Thread* thread, const methodHandle& method, int osr_bci);
+
+ static void compiler_thread_loop();
+ static uint get_compilation_id() { return _compilation_id; }
+
+ // Set _should_block.
+ // Call this from the VM, with Threads_lock held and a safepoint requested.
+ static void set_should_block();
+
+ // Call this from the compiler at convenient points, to poll for _should_block.
+ static void maybe_block();
+
+ enum CompilerActivity {
+ // Flags for toggling compiler activity
+ stop_compilation = 0,
+ run_compilation = 1,
+ shutdown_compilation = 2
+ };
+
+ static jint get_compilation_activity_mode() { return _should_compile_new_jobs; }
+ static bool should_compile_new_jobs() { return UseCompiler && (_should_compile_new_jobs == run_compilation); }
+ static bool set_should_compile_new_jobs(jint new_state) {
+ // Return success if the current caller set it
+ jint old = Atomic::cmpxchg(new_state, &_should_compile_new_jobs, 1-new_state);
+ return (old == (1-new_state));
+ }
+
+ static void disable_compilation_forever() {
+ UseCompiler = false;
+ AlwaysCompileLoopMethods = false;
+ Atomic::xchg(shutdown_compilation, &_should_compile_new_jobs);
+ }
+
+ static bool is_compilation_disabled_forever() {
+ return _should_compile_new_jobs == shutdown_compilation;
+ }
+ static void handle_full_code_cache(int code_blob_type);
+ // Ensures that warning is only printed once.
+ static bool should_print_compiler_warning() {
+ jint old = Atomic::cmpxchg(1, &_print_compilation_warning, 0);
+ return old == 0;
+ }
+ // Return total compilation ticks
+ static jlong total_compilation_ticks() {
+ return _perf_total_compilation != NULL ? _perf_total_compilation->get_value() : 0;
+ }
+
+ // Redefine Classes support
+ static void mark_on_stack();
+
+#if INCLUDE_JVMCI
+ // Print curent compilation time stats for a given compiler
+ static void print_times(AbstractCompiler* comp);
+#endif
+
+ // Print a detailed accounting of compilation time
+ static void print_times(bool per_compiler = true, bool aggregate = true);
+
+ // Debugging output for failure
+ static void print_last_compile();
+
+ // compiler name for debugging
+ static const char* compiler_name(int comp_level);
+
+ static int get_total_compile_count() { return _total_compile_count; }
+ static int get_total_bailout_count() { return _total_bailout_count; }
+ static int get_total_invalidated_count() { return _total_invalidated_count; }
+ static int get_total_native_compile_count() { return _total_native_compile_count; }
+ static int get_total_osr_compile_count() { return _total_osr_compile_count; }
+ static int get_total_standard_compile_count() { return _total_standard_compile_count; }
+ static int get_sum_osr_bytes_compiled() { return _sum_osr_bytes_compiled; }
+ static int get_sum_standard_bytes_compiled() { return _sum_standard_bytes_compiled; }
+ static int get_sum_nmethod_size() { return _sum_nmethod_size;}
+ static int get_sum_nmethod_code_size() { return _sum_nmethod_code_size; }
+ static long get_peak_compilation_time() { return _peak_compilation_time; }
+ static long get_total_compilation_time() { return _t_total_compilation.milliseconds(); }
+
+ // Log that compilation profiling is skipped because metaspace is full.
+ static void log_metaspace_failure();
+};
+
+#endif // SHARE_VM_COMPILER_COMPILEBROKER_HPP