src/hotspot/share/gc/g1/g1HeapRegionEventSender.cpp
author tschatzl
Sat, 18 May 2019 22:11:25 +0200
changeset 54934 39814e0a8964
parent 50113 caf115bb98ad
child 58003 a645b2f7bece
permissions -rw-r--r--
8222492: G1 unnecessarily scans remembered set cards for regions that already have been evacuated Summary: Filter out cards from the current collection set during evacuation increments. Reviewed-by: kbarrett, sangheki

/*
 * Copyright (c) 2016, 2018, 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.
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#include "precompiled.hpp"
#include "gc/g1/g1CollectedHeap.hpp"
#include "gc/g1/heapRegion.hpp"
#include "g1HeapRegionEventSender.hpp"
#include "jfr/jfrEvents.hpp"

class DumpEventInfoClosure : public HeapRegionClosure {
public:
  bool do_heap_region(HeapRegion* r) {
    EventG1HeapRegionInformation evt;
    evt.set_index(r->hrm_index());
    evt.set_type(r->get_trace_type());
    evt.set_start((uintptr_t)r->bottom());
    evt.set_used(r->used());
    evt.commit();
    return false;
  }
};


void G1HeapRegionEventSender::send_events() {
  DumpEventInfoClosure c;

  G1CollectedHeap::heap()->heap_region_iterate(&c);
}