Mon, 12 Aug 2019 18:30:40 +0300
8223147: JFR Backport
8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling
8202835: jfr/event/os/TestSystemProcess.java fails on missing events
Summary: Backport JFR from JDK11. Initial integration
Reviewed-by: neugens
1 /*
2 * Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 #include "precompiled.hpp"
26 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp"
27 #include "gc_implementation/parallelScavenge/psMarkSweep.hpp"
28 #include "gc_implementation/parallelScavenge/psScavenge.hpp"
29 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
30 #include "gc_implementation/parallelScavenge/vmPSOperations.hpp"
31 #include "memory/gcLocker.inline.hpp"
32 #include "utilities/dtrace.hpp"
34 // The following methods are used by the parallel scavenge collector
35 VM_ParallelGCFailedAllocation::VM_ParallelGCFailedAllocation(size_t word_size,
36 uint gc_count) :
37 VM_CollectForAllocation(word_size, gc_count, GCCause::_allocation_failure) {
38 assert(word_size != 0, "An allocation should always be requested with this operation.");
39 }
41 void VM_ParallelGCFailedAllocation::doit() {
42 SvcGCMarker sgcm(SvcGCMarker::MINOR);
44 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
45 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap");
47 GCCauseSetter gccs(heap, _gc_cause);
48 _result = heap->failed_mem_allocate(_word_size);
50 if (_result == NULL && GC_locker::is_active_and_needs_gc()) {
51 set_gc_locked();
52 }
53 }
55 // Only used for System.gc() calls
56 VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(uint gc_count,
57 uint full_gc_count,
58 GCCause::Cause gc_cause) :
59 VM_GC_Operation(gc_count, gc_cause, full_gc_count, true /* full */)
60 {
61 }
63 void VM_ParallelGCSystemGC::doit() {
64 SvcGCMarker sgcm(SvcGCMarker::FULL);
66 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
67 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap,
68 "must be a ParallelScavengeHeap");
70 GCCauseSetter gccs(heap, _gc_cause);
71 if (_gc_cause == GCCause::_gc_locker || _gc_cause == GCCause::_wb_young_gc
72 DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) {
73 // If (and only if) the scavenge fails, this will invoke a full gc.
74 heap->invoke_scavenge();
75 } else {
76 heap->do_full_collection(false);
77 }
78 }