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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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35
hotspot/src/share/vm/memory/universe.cpp
View file

@ -819,12 +819,14 @@ jint Universe::initialize_heap() {
// keep the Universe::narrow_oop_base() set in Universe::reserve_heap()
Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes);
if (verbose) {
tty->print(", Compressed Oops with base: "PTR_FORMAT, Universe::narrow_oop_base());
tty->print(", %s: "PTR_FORMAT,
narrow_oop_mode_to_string(HeapBasedNarrowOop),
Universe::narrow_oop_base());
}
} else {
Universe::set_narrow_oop_base(0);
if (verbose) {
tty->print(", zero based Compressed Oops");
tty->print(", %s", narrow_oop_mode_to_string(ZeroBasedNarrowOop));
}
#ifdef _WIN64
if (!Universe::narrow_oop_use_implicit_null_checks()) {
@ -839,7 +841,7 @@ jint Universe::initialize_heap() {
} else {
Universe::set_narrow_oop_shift(0);
if (verbose) {
tty->print(", 32-bits Oops");
tty->print(", %s", narrow_oop_mode_to_string(UnscaledNarrowOop));
}
}
}
@ -946,6 +948,33 @@ void Universe::update_heap_info_at_gc() {
}
const char* Universe::narrow_oop_mode_to_string(Universe::NARROW_OOP_MODE mode) {
switch (mode) {
case UnscaledNarrowOop:
return "32-bits Oops";
case ZeroBasedNarrowOop:
return "zero based Compressed Oops";
case HeapBasedNarrowOop:
return "Compressed Oops with base";
}
ShouldNotReachHere();
return "";
}
Universe::NARROW_OOP_MODE Universe::narrow_oop_mode() {
if (narrow_oop_base() != 0) {
return HeapBasedNarrowOop;
}
if (narrow_oop_shift() != 0) {
return ZeroBasedNarrowOop;
}
return UnscaledNarrowOop;
}
void universe2_init() {
EXCEPTION_MARK;