src/share/vm/gc_implementation/shared/gcTraceTime.cpp
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rev 5685 : 8028128: Add a type safe alternative for working with counter based data
Reviewed-by:
*** 29,44 ****
#include "runtime/os.hpp"
#include "runtime/safepoint.hpp"
#include "runtime/thread.inline.hpp"
#include "runtime/timer.hpp"
#include "utilities/ostream.hpp"
GCTraceTime::GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer) :
! _title(title), _doit(doit), _print_cr(print_cr), _timer(timer) {
if (_doit || _timer != NULL) {
! _start_counter = os::elapsed_counter();
}
if (_timer != NULL) {
assert(SafepointSynchronize::is_at_safepoint(), "Tracing currently only supported at safepoints");
assert(Thread::current()->is_VM_thread(), "Tracing currently only supported from the VM thread");
--- 29,45 ----
#include "runtime/os.hpp"
#include "runtime/safepoint.hpp"
#include "runtime/thread.inline.hpp"
#include "runtime/timer.hpp"
#include "utilities/ostream.hpp"
+ #include "utilities/ticks.inline.hpp"
GCTraceTime::GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer) :
! _title(title), _doit(doit), _print_cr(print_cr), _timer(timer), _start_counter() {
if (_doit || _timer != NULL) {
! _start_counter.stamp();
}
if (_timer != NULL) {
assert(SafepointSynchronize::is_at_safepoint(), "Tracing currently only supported at safepoints");
assert(Thread::current()->is_VM_thread(), "Tracing currently only supported from the VM thread");
*** 55,79 ****
gclog_or_tty->flush();
}
}
GCTraceTime::~GCTraceTime() {
! jlong stop_counter = 0;
if (_doit || _timer != NULL) {
! stop_counter = os::elapsed_counter();
}
if (_timer != NULL) {
_timer->register_gc_phase_end(stop_counter);
}
if (_doit) {
! double seconds = TimeHelper::counter_to_seconds(stop_counter - _start_counter);
if (_print_cr) {
! gclog_or_tty->print_cr(", %3.7f secs]", seconds);
} else {
! gclog_or_tty->print(", %3.7f secs]", seconds);
}
gclog_or_tty->flush();
}
}
--- 56,81 ----
gclog_or_tty->flush();
}
}
GCTraceTime::~GCTraceTime() {
! Ticks stop_counter;
if (_doit || _timer != NULL) {
! stop_counter.stamp();
}
if (_timer != NULL) {
_timer->register_gc_phase_end(stop_counter);
}
if (_doit) {
! const Tickspan duration = stop_counter - _start_counter;
! double duration_in_seconds = TicksToTimeHelper::seconds(duration);
if (_print_cr) {
! gclog_or_tty->print_cr(", %3.7f secs]", duration_in_seconds);
} else {
! gclog_or_tty->print(", %3.7f secs]", duration_in_seconds);
}
gclog_or_tty->flush();
}
}