src/share/vm/memory/metaspaceTracer.cpp

Mon, 12 Aug 2019 18:30:40 +0300

author
apetushkov
date
Mon, 12 Aug 2019 18:30:40 +0300
changeset 9858
b985cbb00e68
parent 6428
794399f4f5d9
child 9931
fd44df5e3bc3
permissions
-rw-r--r--

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) 2014, 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 "classfile/classLoaderData.hpp"
    27 #include "jfr/jfrEvents.hpp"
    28 #include "memory/metaspaceTracer.hpp"
    29 #include "oops/oop.inline.hpp"
    31 void MetaspaceTracer::report_gc_threshold(size_t old_val,
    32                                           size_t new_val,
    33                                           MetaspaceGCThresholdUpdater::Type updater) const {
    34   EventMetaspaceGCThreshold event;
    35   if (event.should_commit()) {
    36     event.set_oldValue(old_val);
    37     event.set_newValue(new_val);
    38     event.set_updater((u1)updater);
    39     event.commit();
    40   }
    41 }
    43 void MetaspaceTracer::report_metaspace_allocation_failure(ClassLoaderData *cld,
    44                                                           size_t word_size,
    45                                                           MetaspaceObj::Type objtype,
    46                                                           Metaspace::MetadataType mdtype) const {
    47   send_allocation_failure_event<EventMetaspaceAllocationFailure>(cld, word_size, objtype, mdtype);
    48 }
    50 void MetaspaceTracer::report_metadata_oom(ClassLoaderData *cld,
    51                                          size_t word_size,
    52                                          MetaspaceObj::Type objtype,
    53                                          Metaspace::MetadataType mdtype) const {
    54   send_allocation_failure_event<EventMetaspaceOOM>(cld, word_size, objtype, mdtype);
    55 }
    57 template <typename E>
    58 void MetaspaceTracer::send_allocation_failure_event(ClassLoaderData *cld,
    59                                                     size_t word_size,
    60                                                     MetaspaceObj::Type objtype,
    61                                                     Metaspace::MetadataType mdtype) const {
    62   E event;
    63   if (event.should_commit()) {
    64     if (cld->is_anonymous()) {
    65       event.set_classLoader(NULL);
    66       event.set_anonymousClassLoader(true);
    67     } else {
    68       if (cld->is_the_null_class_loader_data()) {
    69         event.set_classLoader(NULL);
    70       } else {
    71         event.set_classLoader(cld);
    72       }
    73       event.set_anonymousClassLoader(false);
    74     }
    76     event.set_size(word_size * BytesPerWord);
    77     event.set_metadataType((u1) mdtype);
    78     event.set_metaspaceObjectType((u1) objtype);
    79     event.commit();
    80   }
    81 }

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