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8005849: JEP 167: Event-Based JVM Tracing

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Co-authored-by: Karen Kinnear <karen.kinnear@oracle.com>
Co-authored-by: Bengt Rutisson <bengt.rutisson@oracle.com>
Co-authored-by: Calvin Cheung <calvin.cheung@oracle.com>
Co-authored-by: Erik Gahlin <erik.gahlin@oracle.com>
Co-authored-by: Erik Helin <erik.helin@oracle.com>
Co-authored-by: Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>
Co-authored-by: Keith McGuigan <keith.mcguigan@oracle.com>
Co-authored-by: Mattias Tobiasson <mattias.tobiasson@oracle.com>
Co-authored-by: Markus Gronlund <markus.gronlund@oracle.com>
Co-authored-by: Mikael Auno <mikael.auno@oracle.com>
Co-authored-by: Nils Eliasson <nils.eliasson@oracle.com>
Co-authored-by: Nils Loodin <nils.loodin@oracle.com>
Co-authored-by: Rickard Backman <rickard.backman@oracle.com>
Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
Reviewed-by: acorn, coleenp, sla
This commit is contained in:
Staffan Larsen 2013-06-10 11:30:51 +02:00
parent 6b2c468c35
commit 718f3252f6
195 changed files with 7628 additions and 1484 deletions
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46
hotspot/src/share/vm/runtime/timer.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2013, 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
@ -39,6 +39,11 @@
# include "os_bsd.inline.hpp"
#endif
double TimeHelper::counter_to_seconds(jlong counter) {
double count = (double) counter;
double freq = (double) os::elapsed_frequency();
return counter/freq;
}
void elapsedTimer::add(elapsedTimer t) {
_counter += t._counter;
@ -59,9 +64,7 @@ void elapsedTimer::stop() {
}
double elapsedTimer::seconds() const {
double count = (double) _counter;
double freq = (double) os::elapsed_frequency();
return count/freq;
return TimeHelper::counter_to_seconds(_counter);
}
jlong elapsedTimer::milliseconds() const {
@ -90,9 +93,7 @@ void TimeStamp::update() {
double TimeStamp::seconds() const {
assert(is_updated(), "must not be clear");
jlong new_count = os::elapsed_counter();
double count = (double) new_count - _counter;
double freq = (double) os::elapsed_frequency();
return count/freq;
return TimeHelper::counter_to_seconds(new_count - _counter);
}
jlong TimeStamp::milliseconds() const {
@ -110,19 +111,15 @@ jlong TimeStamp::ticks_since_update() const {
}
TraceTime::TraceTime(const char* title,
bool doit,
bool print_cr,
outputStream* logfile) {
bool doit) {
_active = doit;
_verbose = true;
_print_cr = print_cr;
_logfile = (logfile != NULL) ? logfile : tty;
if (_active) {
_accum = NULL;
_logfile->stamp(PrintGCTimeStamps);
_logfile->print("[%s", title);
_logfile->flush();
tty->stamp(PrintGCTimeStamps);
tty->print("[%s", title);
tty->flush();
_t.start();
}
}
@ -130,17 +127,14 @@ TraceTime::TraceTime(const char* title,
TraceTime::TraceTime(const char* title,
elapsedTimer* accumulator,
bool doit,
bool verbose,
outputStream* logfile) {
bool verbose) {
_active = doit;
_verbose = verbose;
_print_cr = true;
_logfile = (logfile != NULL) ? logfile : tty;
if (_active) {
if (_verbose) {
_logfile->stamp(PrintGCTimeStamps);
_logfile->print("[%s", title);
_logfile->flush();
tty->stamp(PrintGCTimeStamps);
tty->print("[%s", title);
tty->flush();
}
_accum = accumulator;
_t.start();
@ -152,12 +146,8 @@ TraceTime::~TraceTime() {
_t.stop();
if (_accum!=NULL) _accum->add(_t);
if (_verbose) {
if (_print_cr) {
_logfile->print_cr(", %3.7f secs]", _t.seconds());
} else {
_logfile->print(", %3.7f secs]", _t.seconds());
}
_logfile->flush();
tty->print_cr(", %3.7f secs]", _t.seconds());
tty->flush();
}
}
}