186 lines
7.5 KiB
C++
186 lines
7.5 KiB
C++
/*
|
|
* Copyright (c) 2016, 2019, 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
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*
|
|
*/
|
|
|
|
#include "precompiled.hpp"
|
|
#include "gc/g1/g1CollectedHeap.hpp"
|
|
#include "gc/g1/g1HeapTransition.hpp"
|
|
#include "gc/g1/g1Policy.hpp"
|
|
#include "logging/logStream.hpp"
|
|
#include "memory/metaspace.hpp"
|
|
|
|
G1HeapTransition::Data::Data(G1CollectedHeap* g1_heap) :
|
|
_eden_length(g1_heap->eden_regions_count()),
|
|
_survivor_length(g1_heap->survivor_regions_count()),
|
|
_old_length(g1_heap->old_regions_count()),
|
|
_archive_length(g1_heap->archive_regions_count()),
|
|
_humongous_length(g1_heap->humongous_regions_count()),
|
|
_eden_length_per_node(NULL),
|
|
_survivor_length_per_node(NULL) {
|
|
|
|
uint node_count = G1NUMA::numa()->num_active_nodes();
|
|
|
|
if (node_count > 1) {
|
|
LogTarget(Debug, gc, heap, numa) lt;
|
|
|
|
if (lt.is_enabled()) {
|
|
_eden_length_per_node = NEW_C_HEAP_ARRAY(uint, node_count, mtGC);
|
|
_survivor_length_per_node = NEW_C_HEAP_ARRAY(uint, node_count, mtGC);
|
|
|
|
for (uint i = 0; i < node_count; i++) {
|
|
_eden_length_per_node[i] = g1_heap->eden_regions_count(i);
|
|
_survivor_length_per_node[i] = g1_heap->survivor_regions_count(i);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
G1HeapTransition::Data::~Data() {
|
|
FREE_C_HEAP_ARRAY(uint, _eden_length_per_node);
|
|
FREE_C_HEAP_ARRAY(uint, _survivor_length_per_node);
|
|
}
|
|
|
|
G1HeapTransition::G1HeapTransition(G1CollectedHeap* g1_heap) : _g1_heap(g1_heap), _before(g1_heap) { }
|
|
|
|
struct DetailedUsage : public StackObj {
|
|
size_t _eden_used;
|
|
size_t _survivor_used;
|
|
size_t _old_used;
|
|
size_t _archive_used;
|
|
size_t _humongous_used;
|
|
|
|
size_t _eden_region_count;
|
|
size_t _survivor_region_count;
|
|
size_t _old_region_count;
|
|
size_t _archive_region_count;
|
|
size_t _humongous_region_count;
|
|
|
|
DetailedUsage() :
|
|
_eden_used(0), _survivor_used(0), _old_used(0), _archive_used(0), _humongous_used(0),
|
|
_eden_region_count(0), _survivor_region_count(0), _old_region_count(0),
|
|
_archive_region_count(0), _humongous_region_count(0) {}
|
|
};
|
|
|
|
class DetailedUsageClosure: public HeapRegionClosure {
|
|
public:
|
|
DetailedUsage _usage;
|
|
bool do_heap_region(HeapRegion* r) {
|
|
if (r->is_old()) {
|
|
_usage._old_used += r->used();
|
|
_usage._old_region_count++;
|
|
} else if (r->is_archive()) {
|
|
_usage._archive_used += r->used();
|
|
_usage._archive_region_count++;
|
|
} else if (r->is_survivor()) {
|
|
_usage._survivor_used += r->used();
|
|
_usage._survivor_region_count++;
|
|
} else if (r->is_eden()) {
|
|
_usage._eden_used += r->used();
|
|
_usage._eden_region_count++;
|
|
} else if (r->is_humongous()) {
|
|
_usage._humongous_used += r->used();
|
|
_usage._humongous_region_count++;
|
|
} else {
|
|
assert(r->used() == 0, "Expected used to be 0 but it was " SIZE_FORMAT, r->used());
|
|
}
|
|
return false;
|
|
}
|
|
};
|
|
|
|
static void log_regions(const char* msg, size_t before_length, size_t after_length, size_t capacity,
|
|
uint* before_per_node_length, uint* after_per_node_length) {
|
|
LogTarget(Info, gc, heap) lt;
|
|
|
|
if (lt.is_enabled()) {
|
|
LogStream ls(lt);
|
|
|
|
ls.print("%s regions: " SIZE_FORMAT "->" SIZE_FORMAT "(" SIZE_FORMAT ")",
|
|
msg, before_length, after_length, capacity);
|
|
// Not NULL only if gc+heap+numa at Debug level is enabled.
|
|
if (before_per_node_length != NULL && after_per_node_length != NULL) {
|
|
G1NUMA* numa = G1NUMA::numa();
|
|
uint num_nodes = numa->num_active_nodes();
|
|
const int* node_ids = numa->node_ids();
|
|
ls.print(" (");
|
|
for (uint i = 0; i < num_nodes; i++) {
|
|
ls.print("%d: %u->%u", node_ids[i], before_per_node_length[i], after_per_node_length[i]);
|
|
// Skip adding below if it is the last one.
|
|
if (i != num_nodes - 1) {
|
|
ls.print(", ");
|
|
}
|
|
}
|
|
ls.print(")");
|
|
}
|
|
ls.print_cr("");
|
|
}
|
|
}
|
|
|
|
void G1HeapTransition::print() {
|
|
Data after(_g1_heap);
|
|
|
|
size_t eden_capacity_length_after_gc = _g1_heap->policy()->young_list_target_length() - after._survivor_length;
|
|
size_t survivor_capacity_length_before_gc = _g1_heap->policy()->max_survivor_regions();
|
|
|
|
DetailedUsage usage;
|
|
if (log_is_enabled(Trace, gc, heap)) {
|
|
DetailedUsageClosure blk;
|
|
_g1_heap->heap_region_iterate(&blk);
|
|
usage = blk._usage;
|
|
assert(usage._eden_region_count == 0, "Expected no eden regions, but got " SIZE_FORMAT, usage._eden_region_count);
|
|
assert(usage._survivor_region_count == after._survivor_length, "Expected survivors to be " SIZE_FORMAT " but was " SIZE_FORMAT,
|
|
after._survivor_length, usage._survivor_region_count);
|
|
assert(usage._old_region_count == after._old_length, "Expected old to be " SIZE_FORMAT " but was " SIZE_FORMAT,
|
|
after._old_length, usage._old_region_count);
|
|
assert(usage._archive_region_count == after._archive_length, "Expected archive to be " SIZE_FORMAT " but was " SIZE_FORMAT,
|
|
after._archive_length, usage._archive_region_count);
|
|
assert(usage._humongous_region_count == after._humongous_length, "Expected humongous to be " SIZE_FORMAT " but was " SIZE_FORMAT,
|
|
after._humongous_length, usage._humongous_region_count);
|
|
}
|
|
|
|
log_regions("Eden", _before._eden_length, after._eden_length, eden_capacity_length_after_gc,
|
|
_before._eden_length_per_node, after._eden_length_per_node);
|
|
log_trace(gc, heap)(" Used: 0K, Waste: 0K");
|
|
|
|
log_regions("Survivor", _before._survivor_length, after._survivor_length, survivor_capacity_length_before_gc,
|
|
_before._survivor_length_per_node, after._survivor_length_per_node);
|
|
log_trace(gc, heap)(" Used: " SIZE_FORMAT "K, Waste: " SIZE_FORMAT "K",
|
|
usage._survivor_used / K, ((after._survivor_length * HeapRegion::GrainBytes) - usage._survivor_used) / K);
|
|
|
|
log_info(gc, heap)("Old regions: " SIZE_FORMAT "->" SIZE_FORMAT,
|
|
_before._old_length, after._old_length);
|
|
log_trace(gc, heap)(" Used: " SIZE_FORMAT "K, Waste: " SIZE_FORMAT "K",
|
|
usage._old_used / K, ((after._old_length * HeapRegion::GrainBytes) - usage._old_used) / K);
|
|
|
|
log_info(gc, heap)("Archive regions: " SIZE_FORMAT "->" SIZE_FORMAT,
|
|
_before._archive_length, after._archive_length);
|
|
log_trace(gc, heap)(" Used: " SIZE_FORMAT "K, Waste: " SIZE_FORMAT "K",
|
|
usage._archive_used / K, ((after._archive_length * HeapRegion::GrainBytes) - usage._archive_used) / K);
|
|
|
|
log_info(gc, heap)("Humongous regions: " SIZE_FORMAT "->" SIZE_FORMAT,
|
|
_before._humongous_length, after._humongous_length);
|
|
log_trace(gc, heap)(" Used: " SIZE_FORMAT "K, Waste: " SIZE_FORMAT "K",
|
|
usage._humongous_used / K, ((after._humongous_length * HeapRegion::GrainBytes) - usage._humongous_used) / K);
|
|
|
|
MetaspaceUtils::print_metaspace_change(_before._meta_sizes);
|
|
}
|