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src/share/vm/gc/parallel/psYoungGen.cpp
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*** 28,37 ****
--- 28,38 ----
#include "gc/parallel/psMarkSweepDecorator.hpp"
#include "gc/parallel/psScavenge.hpp"
#include "gc/parallel/psYoungGen.hpp"
#include "gc/shared/gcUtil.hpp"
#include "gc/shared/spaceDecorator.hpp"
+ #include "logging/log.hpp"
#include "oops/oop.inline.hpp"
#include "runtime/java.hpp"
PSYoungGen::PSYoungGen(size_t initial_size,
size_t min_size,
*** 266,284 ****
// Then we lay out the spaces inside the generation
resize_spaces(eden_size, survivor_size);
space_invariants();
! if (PrintAdaptiveSizePolicy && Verbose) {
! gclog_or_tty->print_cr("Young generation size: "
"desired eden: " SIZE_FORMAT " survivor: " SIZE_FORMAT
" used: " SIZE_FORMAT " capacity: " SIZE_FORMAT
" gen limits: " SIZE_FORMAT " / " SIZE_FORMAT,
eden_size, survivor_size, used_in_bytes(), capacity_in_bytes(),
_max_gen_size, min_gen_size());
}
- }
}
bool PSYoungGen::resize_generation(size_t eden_size, size_t survivor_size) {
const size_t alignment = virtual_space()->alignment();
--- 267,283 ----
// Then we lay out the spaces inside the generation
resize_spaces(eden_size, survivor_size);
space_invariants();
! log_trace(gc, ergo)("Young generation size: "
"desired eden: " SIZE_FORMAT " survivor: " SIZE_FORMAT
" used: " SIZE_FORMAT " capacity: " SIZE_FORMAT
" gen limits: " SIZE_FORMAT " / " SIZE_FORMAT,
eden_size, survivor_size, used_in_bytes(), capacity_in_bytes(),
_max_gen_size, min_gen_size());
}
}
bool PSYoungGen::resize_generation(size_t eden_size, size_t survivor_size) {
const size_t alignment = virtual_space()->alignment();
*** 328,357 ****
reset_survivors_after_shrink();
size_changed = true;
}
} else {
- if (Verbose && PrintGC) {
if (orig_size == gen_size_limit()) {
! gclog_or_tty->print_cr("PSYoung generation size at maximum: "
! SIZE_FORMAT "K", orig_size/K);
} else if (orig_size == min_gen_size()) {
! gclog_or_tty->print_cr("PSYoung generation size at minium: "
! SIZE_FORMAT "K", orig_size/K);
! }
}
}
if (size_changed) {
post_resize();
!
! if (Verbose && PrintGC) {
! size_t current_size = virtual_space()->committed_size();
! gclog_or_tty->print_cr("PSYoung generation size changed: "
! SIZE_FORMAT "K->" SIZE_FORMAT "K",
! orig_size/K, current_size/K);
! }
}
guarantee(eden_plus_survivors <= virtual_space()->committed_size() ||
virtual_space()->committed_size() == max_size(), "Sanity");
--- 327,347 ----
reset_survivors_after_shrink();
size_changed = true;
}
} else {
if (orig_size == gen_size_limit()) {
! log_trace(gc)("PSYoung generation size at maximum: " SIZE_FORMAT "K", orig_size/K);
} else if (orig_size == min_gen_size()) {
! log_trace(gc)("PSYoung generation size at minium: " SIZE_FORMAT "K", orig_size/K);
}
}
if (size_changed) {
post_resize();
! log_trace(gc)("PSYoung generation size changed: " SIZE_FORMAT "K->" SIZE_FORMAT "K",
! orig_size/K, virtual_space()->committed_size()/K);
}
guarantee(eden_plus_survivors <= virtual_space()->committed_size() ||
virtual_space()->committed_size() == max_size(), "Sanity");
*** 410,441 ****
MemRegion delta2_right;
if (delta_start < s2MR.end()) {
s2->mangle_region(delta2_right);
}
- if (TraceZapUnusedHeapArea) {
// s1
! gclog_or_tty->print_cr("Current region: [" PTR_FORMAT ", " PTR_FORMAT ") "
"New region: [" PTR_FORMAT ", " PTR_FORMAT ")",
p2i(s1->bottom()), p2i(s1->end()),
p2i(s1MR.start()), p2i(s1MR.end()));
! gclog_or_tty->print_cr(" Mangle before: [" PTR_FORMAT ", "
PTR_FORMAT ") Mangle after: [" PTR_FORMAT ", " PTR_FORMAT ")",
p2i(delta1_left.start()), p2i(delta1_left.end()),
p2i(delta1_right.start()), p2i(delta1_right.end()));
// s2
! gclog_or_tty->print_cr("Current region: [" PTR_FORMAT ", " PTR_FORMAT ") "
"New region: [" PTR_FORMAT ", " PTR_FORMAT ")",
p2i(s2->bottom()), p2i(s2->end()),
p2i(s2MR.start()), p2i(s2MR.end()));
! gclog_or_tty->print_cr(" Mangle before: [" PTR_FORMAT ", "
PTR_FORMAT ") Mangle after: [" PTR_FORMAT ", " PTR_FORMAT ")",
p2i(delta2_left.start()), p2i(delta2_left.end()),
p2i(delta2_right.start()), p2i(delta2_right.end()));
- }
-
}
#endif // NOT PRODUCT
void PSYoungGen::resize_spaces(size_t requested_eden_size,
size_t requested_survivor_size) {
--- 400,428 ----
MemRegion delta2_right;
if (delta_start < s2MR.end()) {
s2->mangle_region(delta2_right);
}
// s1
! log_develop(gc)("Current region: [" PTR_FORMAT ", " PTR_FORMAT ") "
"New region: [" PTR_FORMAT ", " PTR_FORMAT ")",
p2i(s1->bottom()), p2i(s1->end()),
p2i(s1MR.start()), p2i(s1MR.end()));
! log_develop(gc)(" Mangle before: [" PTR_FORMAT ", "
PTR_FORMAT ") Mangle after: [" PTR_FORMAT ", " PTR_FORMAT ")",
p2i(delta1_left.start()), p2i(delta1_left.end()),
p2i(delta1_right.start()), p2i(delta1_right.end()));
// s2
! log_develop(gc)("Current region: [" PTR_FORMAT ", " PTR_FORMAT ") "
"New region: [" PTR_FORMAT ", " PTR_FORMAT ")",
p2i(s2->bottom()), p2i(s2->end()),
p2i(s2MR.start()), p2i(s2MR.end()));
! log_develop(gc)(" Mangle before: [" PTR_FORMAT ", "
PTR_FORMAT ") Mangle after: [" PTR_FORMAT ", " PTR_FORMAT ")",
p2i(delta2_left.start()), p2i(delta2_left.end()),
p2i(delta2_right.start()), p2i(delta2_right.end()));
}
#endif // NOT PRODUCT
void PSYoungGen::resize_spaces(size_t requested_eden_size,
size_t requested_survivor_size) {
*** 446,490 ****
// We require eden and to space to be empty
if ((!eden_space()->is_empty()) || (!to_space()->is_empty())) {
return;
}
! if (PrintAdaptiveSizePolicy && Verbose) {
! gclog_or_tty->print_cr("PSYoungGen::resize_spaces(requested_eden_size: "
! SIZE_FORMAT
! ", requested_survivor_size: " SIZE_FORMAT ")",
requested_eden_size, requested_survivor_size);
! gclog_or_tty->print_cr(" eden: [" PTR_FORMAT ".." PTR_FORMAT ") "
! SIZE_FORMAT,
p2i(eden_space()->bottom()),
p2i(eden_space()->end()),
pointer_delta(eden_space()->end(),
eden_space()->bottom(),
sizeof(char)));
! gclog_or_tty->print_cr(" from: [" PTR_FORMAT ".." PTR_FORMAT ") "
! SIZE_FORMAT,
p2i(from_space()->bottom()),
p2i(from_space()->end()),
pointer_delta(from_space()->end(),
from_space()->bottom(),
sizeof(char)));
! gclog_or_tty->print_cr(" to: [" PTR_FORMAT ".." PTR_FORMAT ") "
! SIZE_FORMAT,
p2i(to_space()->bottom()),
p2i(to_space()->end()),
pointer_delta( to_space()->end(),
to_space()->bottom(),
sizeof(char)));
- }
// There's nothing to do if the new sizes are the same as the current
if (requested_survivor_size == to_space()->capacity_in_bytes() &&
requested_survivor_size == from_space()->capacity_in_bytes() &&
requested_eden_size == eden_space()->capacity_in_bytes()) {
! if (PrintAdaptiveSizePolicy && Verbose) {
! gclog_or_tty->print_cr(" capacities are the right sizes, returning");
! }
return;
}
char* eden_start = (char*)eden_space()->bottom();
char* eden_end = (char*)eden_space()->end();
--- 433,468 ----
// We require eden and to space to be empty
if ((!eden_space()->is_empty()) || (!to_space()->is_empty())) {
return;
}
! log_trace(gc, ergo)("PSYoungGen::resize_spaces(requested_eden_size: " SIZE_FORMAT ", requested_survivor_size: " SIZE_FORMAT ")",
requested_eden_size, requested_survivor_size);
! log_trace(gc, ergo)(" eden: [" PTR_FORMAT ".." PTR_FORMAT ") " SIZE_FORMAT,
p2i(eden_space()->bottom()),
p2i(eden_space()->end()),
pointer_delta(eden_space()->end(),
eden_space()->bottom(),
sizeof(char)));
! log_trace(gc, ergo)(" from: [" PTR_FORMAT ".." PTR_FORMAT ") " SIZE_FORMAT,
p2i(from_space()->bottom()),
p2i(from_space()->end()),
pointer_delta(from_space()->end(),
from_space()->bottom(),
sizeof(char)));
! log_trace(gc, ergo)(" to: [" PTR_FORMAT ".." PTR_FORMAT ") " SIZE_FORMAT,
p2i(to_space()->bottom()),
p2i(to_space()->end()),
pointer_delta( to_space()->end(),
to_space()->bottom(),
sizeof(char)));
// There's nothing to do if the new sizes are the same as the current
if (requested_survivor_size == to_space()->capacity_in_bytes() &&
requested_survivor_size == from_space()->capacity_in_bytes() &&
requested_eden_size == eden_space()->capacity_in_bytes()) {
! log_trace(gc, ergo)(" capacities are the right sizes, returning");
return;
}
char* eden_start = (char*)eden_space()->bottom();
char* eden_end = (char*)eden_space()->end();
*** 501,513 ****
bool eden_from_to_order = from_start < to_start;
// Check whether from space is below to space
if (eden_from_to_order) {
// Eden, from, to
eden_from_to_order = true;
! if (PrintAdaptiveSizePolicy && Verbose) {
! gclog_or_tty->print_cr(" Eden, from, to:");
! }
// Set eden
// "requested_eden_size" is a goal for the size of eden
// and may not be attainable. "eden_size" below is
// calculated based on the location of from-space and
--- 479,489 ----
bool eden_from_to_order = from_start < to_start;
// Check whether from space is below to space
if (eden_from_to_order) {
// Eden, from, to
eden_from_to_order = true;
! log_trace(gc, ergo)(" Eden, from, to:");
// Set eden
// "requested_eden_size" is a goal for the size of eden
// and may not be attainable. "eden_size" below is
// calculated based on the location of from-space and
*** 564,595 ****
to_start = MAX2(from_end, to_start);
}
guarantee(to_start != to_end, "to space is zero sized");
! if (PrintAdaptiveSizePolicy && Verbose) {
! gclog_or_tty->print_cr(" [eden_start .. eden_end): "
! "[" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
p2i(eden_start),
p2i(eden_end),
pointer_delta(eden_end, eden_start, sizeof(char)));
! gclog_or_tty->print_cr(" [from_start .. from_end): "
! "[" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
p2i(from_start),
p2i(from_end),
pointer_delta(from_end, from_start, sizeof(char)));
! gclog_or_tty->print_cr(" [ to_start .. to_end): "
! "[" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
p2i(to_start),
p2i(to_end),
pointer_delta( to_end, to_start, sizeof(char)));
- }
} else {
// Eden, to, from
! if (PrintAdaptiveSizePolicy && Verbose) {
! gclog_or_tty->print_cr(" Eden, to, from:");
! }
// To space gets priority over eden resizing. Note that we position
// to space as if we were able to resize from space, even though from
// space is not modified.
// Giving eden priority was tried and gave poorer performance.
--- 540,564 ----
to_start = MAX2(from_end, to_start);
}
guarantee(to_start != to_end, "to space is zero sized");
! log_trace(gc, ergo)(" [eden_start .. eden_end): [" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
p2i(eden_start),
p2i(eden_end),
pointer_delta(eden_end, eden_start, sizeof(char)));
! log_trace(gc, ergo)(" [from_start .. from_end): [" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
p2i(from_start),
p2i(from_end),
pointer_delta(from_end, from_start, sizeof(char)));
! log_trace(gc, ergo)(" [ to_start .. to_end): [" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
p2i(to_start),
p2i(to_end),
pointer_delta( to_end, to_start, sizeof(char)));
} else {
// Eden, to, from
! log_trace(gc, ergo)(" Eden, to, from:");
// To space gets priority over eden resizing. Note that we position
// to space as if we were able to resize from space, even though from
// space is not modified.
// Giving eden priority was tried and gave poorer performance.
*** 621,648 ****
// Don't let eden shrink down to 0 or less.
eden_end = MAX2(eden_end, eden_start + alignment);
to_start = MAX2(to_start, eden_end);
! if (PrintAdaptiveSizePolicy && Verbose) {
! gclog_or_tty->print_cr(" [eden_start .. eden_end): "
! "[" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
p2i(eden_start),
p2i(eden_end),
pointer_delta(eden_end, eden_start, sizeof(char)));
! gclog_or_tty->print_cr(" [ to_start .. to_end): "
! "[" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
p2i(to_start),
p2i(to_end),
pointer_delta( to_end, to_start, sizeof(char)));
! gclog_or_tty->print_cr(" [from_start .. from_end): "
! "[" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
p2i(from_start),
p2i(from_end),
pointer_delta(from_end, from_start, sizeof(char)));
}
- }
guarantee((HeapWord*)from_start <= from_space()->bottom(),
"from start moved to the right");
guarantee((HeapWord*)from_end >= from_space()->top(),
--- 590,612 ----
// Don't let eden shrink down to 0 or less.
eden_end = MAX2(eden_end, eden_start + alignment);
to_start = MAX2(to_start, eden_end);
! log_trace(gc, ergo)(" [eden_start .. eden_end): [" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
p2i(eden_start),
p2i(eden_end),
pointer_delta(eden_end, eden_start, sizeof(char)));
! log_trace(gc, ergo)(" [ to_start .. to_end): [" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
p2i(to_start),
p2i(to_end),
pointer_delta( to_end, to_start, sizeof(char)));
! log_trace(gc, ergo)(" [from_start .. from_end): [" PTR_FORMAT " .. " PTR_FORMAT ") " SIZE_FORMAT,
p2i(from_start),
p2i(from_end),
pointer_delta(from_end, from_start, sizeof(char)));
}
guarantee((HeapWord*)from_start <= from_space()->bottom(),
"from start moved to the right");
guarantee((HeapWord*)from_end >= from_space()->top(),
*** 656,666 ****
MemRegion fromMR((HeapWord*)from_start, (HeapWord*)from_end);
// Let's make sure the call to initialize doesn't reset "top"!
HeapWord* old_from_top = from_space()->top();
! // For PrintAdaptiveSizePolicy block below
size_t old_from = from_space()->capacity_in_bytes();
size_t old_to = to_space()->capacity_in_bytes();
if (ZapUnusedHeapArea) {
// NUMA is a special case because a numa space is not mangled
--- 620,630 ----
MemRegion fromMR((HeapWord*)from_start, (HeapWord*)from_end);
// Let's make sure the call to initialize doesn't reset "top"!
HeapWord* old_from_top = from_space()->top();
! // For logging block below
size_t old_from = from_space()->capacity_in_bytes();
size_t old_to = to_space()->capacity_in_bytes();
if (ZapUnusedHeapArea) {
// NUMA is a special case because a numa space is not mangled
*** 702,723 ****
SpaceDecorator::DontClear,
SpaceDecorator::DontMangle);
assert(from_space()->top() == old_from_top, "from top changed!");
! if (PrintAdaptiveSizePolicy) {
! ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
! gclog_or_tty->print("AdaptiveSizePolicy::survivor space sizes: "
! "collection: %d "
! "(" SIZE_FORMAT ", " SIZE_FORMAT ") -> "
! "(" SIZE_FORMAT ", " SIZE_FORMAT ") ",
! heap->total_collections(),
old_from, old_to,
from_space()->capacity_in_bytes(),
to_space()->capacity_in_bytes());
- gclog_or_tty->cr();
- }
}
void PSYoungGen::swap_spaces() {
MutableSpace* s = from_space();
_from_space = to_space();
--- 666,680 ----
SpaceDecorator::DontClear,
SpaceDecorator::DontMangle);
assert(from_space()->top() == old_from_top, "from top changed!");
! log_trace(gc, ergo)("AdaptiveSizePolicy::survivor space sizes: collection: %d (" SIZE_FORMAT ", " SIZE_FORMAT ") -> (" SIZE_FORMAT ", " SIZE_FORMAT ") ",
! ParallelScavengeHeap::heap()->total_collections(),
old_from, old_to,
from_space()->capacity_in_bytes(),
to_space()->capacity_in_bytes());
}
void PSYoungGen::swap_spaces() {
MutableSpace* s = from_space();
_from_space = to_space();
*** 792,823 ****
}
void PSYoungGen::print() const { print_on(tty); }
void PSYoungGen::print_on(outputStream* st) const {
st->print(" %-15s", "PSYoungGen");
- if (PrintGCDetails && Verbose) {
- st->print(" total " SIZE_FORMAT ", used " SIZE_FORMAT,
- capacity_in_bytes(), used_in_bytes());
- } else {
st->print(" total " SIZE_FORMAT "K, used " SIZE_FORMAT "K",
capacity_in_bytes()/K, used_in_bytes()/K);
- }
virtual_space()->print_space_boundaries_on(st);
st->print(" eden"); eden_space()->print_on(st);
st->print(" from"); from_space()->print_on(st);
st->print(" to "); to_space()->print_on(st);
}
// Note that a space is not printed before the [NAME:
void PSYoungGen::print_used_change(size_t prev_used) const {
! gclog_or_tty->print("[%s:", name());
! gclog_or_tty->print(" " SIZE_FORMAT "K"
! "->" SIZE_FORMAT "K"
! "(" SIZE_FORMAT "K)",
! prev_used / K, used_in_bytes() / K,
! capacity_in_bytes() / K);
! gclog_or_tty->print("]");
}
size_t PSYoungGen::available_for_expansion() {
ShouldNotReachHere();
return 0;
--- 749,770 ----
}
void PSYoungGen::print() const { print_on(tty); }
void PSYoungGen::print_on(outputStream* st) const {
st->print(" %-15s", "PSYoungGen");
st->print(" total " SIZE_FORMAT "K, used " SIZE_FORMAT "K",
capacity_in_bytes()/K, used_in_bytes()/K);
virtual_space()->print_space_boundaries_on(st);
st->print(" eden"); eden_space()->print_on(st);
st->print(" from"); from_space()->print_on(st);
st->print(" to "); to_space()->print_on(st);
}
// Note that a space is not printed before the [NAME:
void PSYoungGen::print_used_change(size_t prev_used) const {
! log_info(gc, heap)("%s: " SIZE_FORMAT "K->" SIZE_FORMAT "K(" SIZE_FORMAT "K)",
! name(), prev_used / K, used_in_bytes() / K, capacity_in_bytes() / K);
}
size_t PSYoungGen::available_for_expansion() {
ShouldNotReachHere();
return 0;
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