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src/share/vm/gc/shared/gcTraceTime.hpp
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@@ -23,33 +23,122 @@
*/
#ifndef SHARE_VM_GC_SHARED_GCTRACETIME_HPP
#define SHARE_VM_GC_SHARED_GCTRACETIME_HPP
+#include "gc/shared/collectedHeap.hpp"
+#include "gc/shared/gcTimer.hpp"
#include "gc/shared/gcTrace.hpp"
+#include "logging/log.hpp"
#include "memory/allocation.hpp"
+#include "memory/resourceArea.hpp"
+#include "memory/universe.hpp"
#include "prims/jni_md.h"
#include "utilities/ticks.hpp"
+#include "runtime/timer.hpp"
+#include "utilities/ticks.hpp"
-class GCTimer;
+class GCTraceCPUTime : public StackObj {
+ bool _active; // true if times will be measured and printed
+ double _starting_user_time; // user time at start of measurement
+ double _starting_system_time; // system time at start of measurement
+ double _starting_real_time; // real time at start of measurement
+ public:
+ GCTraceCPUTime();
+ ~GCTraceCPUTime();
+};
-class GCTraceTimeImpl VALUE_OBJ_CLASS_SPEC {
+template <LogLevelType Level, LogTagType T0, LogTagType T1 = LogTag::__NO_TAG, LogTagType T2 = LogTag::__NO_TAG, LogTagType T3 = LogTag::__NO_TAG,
+ LogTagType T4 = LogTag::__NO_TAG, LogTagType GuardTag = LogTag::__NO_TAG>
+class GCTraceTimeImpl : public StackObj {
+ private:
+ bool _enabled;
+ Ticks _start_ticks;
const char* _title;
- bool _doit;
- bool _print_cr;
+ GCCause::Cause _gc_cause;
GCTimer* _timer;
- Ticks _start_counter;
+ size_t _heap_usage_before;
- public:
- GCTraceTimeImpl(const char* title, bool doit, bool print_cr, GCTimer* timer);
- ~GCTraceTimeImpl();
-};
-
-class GCTraceTime : public StackObj {
- GCTraceTimeImpl _gc_trace_time_impl;
+ void log_start(jlong start_counter) {
+ if (Log<LogTag::start, T0, T1, T2, T3>::is_level(Level)) {
+ FormatBuffer<> start_msg("%s", _title);
+ if (_gc_cause != GCCause::_no_gc) {
+ start_msg.append(" (%s)", GCCause::to_string(_gc_cause));
+ }
+ start_msg.append(" (%.3fs)", TimeHelper::counter_to_seconds(start_counter));
+ // Make sure to put the "start" tag last in the tag set
+ STATIC_ASSERT(T0 != LogTag::__NO_TAG); // Need some tag to log on.
+ STATIC_ASSERT(T4 == LogTag::__NO_TAG); // Need to leave at least the last tag for the "start" tag in log_start()
+ if (T1 == LogTag::__NO_TAG) {
+ Log<T0, LogTag::start>::template write<Level>("%s", start_msg.buffer());
+ } else if (T2 == LogTag::__NO_TAG) {
+ Log<T0, T1, LogTag::start>::template write<Level>("%s", start_msg.buffer());
+ } else if (T3 == LogTag::__NO_TAG) {
+ Log<T0, T1, T2, LogTag::start>::template write<Level>("%s", start_msg.buffer());
+ } else {
+ Log<T0, T1, T2, T3, LogTag::start>::template write<Level>("%s", start_msg.buffer());
+ }
+ }
+ }
+
+#define LOG_STOP_TIME_FORMAT "(%.3fs, %.3fs) %.3fms"
+#define LOG_STOP_HEAP_FORMAT SIZE_FORMAT "M->" SIZE_FORMAT "M(" SIZE_FORMAT "M)"
+
+ void log_stop(jlong start_counter, jlong stop_counter) {
+ double duration_in_ms = TimeHelper::counter_to_millis(stop_counter - start_counter);
+ double start_time_in_secs = TimeHelper::counter_to_seconds(start_counter);
+ double stop_time_in_secs = TimeHelper::counter_to_seconds(stop_counter);
+ FormatBuffer<> stop_msg("%s", _title);
+ if (_gc_cause != GCCause::_no_gc) {
+ stop_msg.append(" (%s)", GCCause::to_string(_gc_cause));
+ }
+ if (_heap_usage_before == SIZE_MAX) {
+ Log<T0, T1, T2, T3, T4>::template write<Level>("%s " LOG_STOP_TIME_FORMAT,
+ stop_msg.buffer(), start_time_in_secs, stop_time_in_secs, duration_in_ms);
+ } else {
+ CollectedHeap* heap = Universe::heap();
+ size_t used_before_m = _heap_usage_before / M;
+ size_t used_m = heap->used() / M;
+ size_t capacity_m = heap->capacity() / M;
+ Log<T0, T1, T2, T3, T4>::template write<Level>("%s " LOG_STOP_HEAP_FORMAT " " LOG_STOP_TIME_FORMAT,
+ stop_msg.buffer(), used_before_m, used_m, capacity_m, start_time_in_secs, stop_time_in_secs, duration_in_ms);
+ }
+ }
public:
- GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer) :
- _gc_trace_time_impl(title, doit, print_cr, timer) {};
+ GCTraceTimeImpl(const char* title, GCTimer* timer = NULL, GCCause::Cause gc_cause = GCCause::_no_gc, bool log_heap_usage = false)
+ : _enabled(Log<T0, T1, T2, T3, T4, GuardTag>::is_level(Level)), _start_ticks(), _title(title), _gc_cause(gc_cause), _timer(timer) {
+ if (_enabled) {
+ _start_ticks.stamp();
+ if (log_heap_usage) {
+ _heap_usage_before = Universe::heap()->used();
+ } else {
+ _heap_usage_before = SIZE_MAX;
+ }
+ log_start(_start_ticks.value());
+ }
+ if (_timer != NULL) {
+ if (!_enabled) {
+ _start_ticks.stamp();
+ }
+ _timer->register_gc_phase_start(_title, _start_ticks);
+ }
+ }
+
+ ~GCTraceTimeImpl() {
+ Ticks stop_ticks;
+ if (_enabled) {
+ stop_ticks.stamp();
+ log_stop(_start_ticks.value(), stop_ticks.value());
+ }
+ if (_timer != NULL) {
+ if (!_enabled) {
+ stop_ticks.stamp();
+ }
+ _timer->register_gc_phase_end(stop_ticks);
+ }
+ }
};
+#define GCTraceTime(Level, ...) GCTraceTimeImpl<LogLevel::Level, LOG_TAGS(__VA_ARGS__)>
+
#endif // SHARE_VM_GC_SHARED_GCTRACETIME_HPP
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