Fri, 11 Feb 2011 14:15:16 +0100
7018257: jmm_DumpThreads allocates into permgen
Summary: Don't allocate in permgen
Reviewed-by: ysr, sla
1 /*
2 * Copyright (c) 2003, 2010, 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 #ifndef SHARE_VM_SERVICES_RUNTIMESERVICE_HPP
26 #define SHARE_VM_SERVICES_RUNTIMESERVICE_HPP
28 #include "runtime/perfData.hpp"
29 #include "runtime/timer.hpp"
31 class RuntimeService : public AllStatic {
32 private:
33 static PerfCounter* _sync_time_ticks; // Accumulated time spent getting to safepoints
34 static PerfCounter* _total_safepoints;
35 static PerfCounter* _safepoint_time_ticks; // Accumulated time at safepoints
36 static PerfCounter* _application_time_ticks; // Accumulated time not at safepoints
37 static PerfCounter* _thread_interrupt_signaled_count;// os:interrupt thr_kill
38 static PerfCounter* _interrupted_before_count; // _INTERRUPTIBLE OS_INTRPT
39 static PerfCounter* _interrupted_during_count; // _INTERRUPTIBLE OS_INTRPT
41 static TimeStamp _safepoint_timer;
42 static TimeStamp _app_timer;
44 public:
45 static void init();
47 static jlong safepoint_sync_time_ms();
48 static jlong safepoint_count();
49 static jlong safepoint_time_ms();
50 static jlong application_time_ms();
52 static double last_safepoint_time_sec() { return _safepoint_timer.seconds(); }
53 static double last_application_time_sec() { return _app_timer.seconds(); }
55 // callbacks
56 static void record_safepoint_begin();
57 static void record_safepoint_synchronized();
58 static void record_safepoint_end();
59 static void record_application_start();
61 // interruption events
62 static void record_interrupted_before_count();
63 static void record_interrupted_during_count();
64 static void record_thread_interrupt_signaled_count();
65 };
67 #endif // SHARE_VM_SERVICES_RUNTIMESERVICE_HPP