14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "gc_implementation/shared/gcTimer.hpp"
27 #include "gc_implementation/shared/gcTraceTime.hpp"
28 #include "runtime/globals.hpp"
29 #include "runtime/os.hpp"
30 #include "runtime/safepoint.hpp"
31 #include "runtime/thread.inline.hpp"
32 #include "runtime/timer.hpp"
33 #include "utilities/ostream.hpp"
34
35
36 GCTraceTime::GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer) :
37 _title(title), _doit(doit), _print_cr(print_cr), _timer(timer) {
38 if (_doit || _timer != NULL) {
39 _start_counter = os::elapsed_counter();
40 }
41
42 if (_timer != NULL) {
43 assert(SafepointSynchronize::is_at_safepoint(), "Tracing currently only supported at safepoints");
44 assert(Thread::current()->is_VM_thread(), "Tracing currently only supported from the VM thread");
45
46 _timer->register_gc_phase_start(title, _start_counter);
47 }
48
49 if (_doit) {
50 if (PrintGCTimeStamps) {
51 gclog_or_tty->stamp();
52 gclog_or_tty->print(": ");
53 }
54 gclog_or_tty->print("[%s", title);
55 gclog_or_tty->flush();
56 }
57 }
58
59 GCTraceTime::~GCTraceTime() {
60 jlong stop_counter = 0;
61
62 if (_doit || _timer != NULL) {
63 stop_counter = os::elapsed_counter();
64 }
65
66 if (_timer != NULL) {
67 _timer->register_gc_phase_end(stop_counter);
68 }
69
70 if (_doit) {
71 double seconds = TimeHelper::counter_to_seconds(stop_counter - _start_counter);
72 if (_print_cr) {
73 gclog_or_tty->print_cr(", %3.7f secs]", seconds);
74 } else {
75 gclog_or_tty->print(", %3.7f secs]", seconds);
76 }
77 gclog_or_tty->flush();
78 }
79 }
|
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "gc_implementation/shared/gcTimer.hpp"
27 #include "gc_implementation/shared/gcTraceTime.hpp"
28 #include "runtime/globals.hpp"
29 #include "runtime/os.hpp"
30 #include "runtime/safepoint.hpp"
31 #include "runtime/thread.inline.hpp"
32 #include "runtime/timer.hpp"
33 #include "utilities/ostream.hpp"
34 #include "utilities/ticks.inline.hpp"
35
36
37 GCTraceTime::GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer) :
38 _title(title), _doit(doit), _print_cr(print_cr), _timer(timer), _start_counter() {
39 if (_doit || _timer != NULL) {
40 _start_counter.stamp();
41 }
42
43 if (_timer != NULL) {
44 assert(SafepointSynchronize::is_at_safepoint(), "Tracing currently only supported at safepoints");
45 assert(Thread::current()->is_VM_thread(), "Tracing currently only supported from the VM thread");
46
47 _timer->register_gc_phase_start(title, _start_counter);
48 }
49
50 if (_doit) {
51 if (PrintGCTimeStamps) {
52 gclog_or_tty->stamp();
53 gclog_or_tty->print(": ");
54 }
55 gclog_or_tty->print("[%s", title);
56 gclog_or_tty->flush();
57 }
58 }
59
60 GCTraceTime::~GCTraceTime() {
61 Ticks stop_counter;
62
63 if (_doit || _timer != NULL) {
64 stop_counter.stamp();
65 }
66
67 if (_timer != NULL) {
68 _timer->register_gc_phase_end(stop_counter);
69 }
70
71 if (_doit) {
72 const Tickspan duration = stop_counter - _start_counter;
73 double duration_in_seconds = TicksToTimeHelper::seconds(duration);
74 if (_print_cr) {
75 gclog_or_tty->print_cr(", %3.7f secs]", duration_in_seconds);
76 } else {
77 gclog_or_tty->print(", %3.7f secs]", duration_in_seconds);
78 }
79 gclog_or_tty->flush();
80 }
81 }
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