Mercurial > hg > truffle
annotate test/runtime/NMT/VirtualAllocTestType.java @ 12986:1b422ef5288a
8025728: Missing volatile specifier for field G1AllocRegion::_alloc_region
Summary: The field G1AllocRegion::_alloc_region needs to be declared volatile as it is used with that intention. Otherwise the compiler may generate the code that reloads the value which might have changed in the meantime, leading to spurious crashes.
Reviewed-by: iveresov, simonis, tschatzl
Contributed-by: Axel Siebenborn <axel.siebenborn@sap.com>
| author | tschatzl |
|---|---|
| date | Wed, 23 Oct 2013 10:23:06 +0200 |
| parents | 5fd8e2fbafd4 |
| children | ac12996df59b |
| rev | line source |
|---|---|
| 9056 | 1 /* |
| 2 * Copyright (c) 2013, 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 | |
| 24 /* | |
| 25 * @test | |
| 26 * @summary Test Reserve/Commit/Uncommit/Release of virtual memory and that we track it correctly | |
| 27 * @key nmt jcmd | |
| 28 * @library /testlibrary /testlibrary/whitebox | |
| 29 * @build VirtualAllocTestType | |
| 30 * @run main ClassFileInstaller sun.hotspot.WhiteBox | |
| 31 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail VirtualAllocTestType | |
| 32 */ | |
| 33 | |
| 34 import com.oracle.java.testlibrary.*; | |
| 35 import sun.hotspot.WhiteBox; | |
| 36 | |
| 37 public class VirtualAllocTestType { | |
| 38 | |
| 39 public static WhiteBox wb = WhiteBox.getWhiteBox(); | |
| 40 public static void main(String args[]) throws Exception { | |
| 41 OutputAnalyzer output; | |
| 42 long commitSize = 128 * 1024; | |
| 43 long reserveSize = 256 * 1024; | |
| 44 long addr; | |
| 45 | |
| 46 String pid = Integer.toString(ProcessTools.getProcessId()); | |
| 47 ProcessBuilder pb = new ProcessBuilder(); | |
| 48 | |
|
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5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
9056
diff
changeset
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49 boolean has_nmt_detail = wb.NMTIsDetailSupported(); |
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5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
9056
diff
changeset
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50 if (has_nmt_detail) { |
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5fd8e2fbafd4
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51 System.out.println("NMT detail support detected."); |
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5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
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52 } else { |
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5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
9056
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53 System.out.println("NMT detail support not detected."); |
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5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
9056
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54 } |
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5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
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55 |
| 9056 | 56 addr = wb.NMTReserveMemory(reserveSize); |
| 57 mergeData(); | |
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12118
5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
9056
diff
changeset
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58 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail"}); |
| 9056 | 59 |
| 60 output = new OutputAnalyzer(pb.start()); | |
| 61 output.shouldContain("Test (reserved=256KB, committed=0KB)"); | |
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12118
5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
9056
diff
changeset
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62 if (has_nmt_detail) { |
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5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
9056
diff
changeset
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63 output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved 256KB for Test"); |
|
5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
9056
diff
changeset
|
64 } |
| 9056 | 65 |
| 66 wb.NMTCommitMemory(addr, commitSize); | |
| 67 | |
| 68 mergeData(); | |
| 69 | |
| 70 output = new OutputAnalyzer(pb.start()); | |
| 71 output.shouldContain("Test (reserved=256KB, committed=128KB)"); | |
|
12118
5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
9056
diff
changeset
|
72 if (has_nmt_detail) { |
|
5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
9056
diff
changeset
|
73 output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed 128KB"); |
|
5fd8e2fbafd4
8020829: JT_HS: 2 runtime NMT tests fail on platforms if NMT detail is not supported
cjplummer
parents:
9056
diff
changeset
|
74 } |
| 9056 | 75 |
| 76 wb.NMTUncommitMemory(addr, commitSize); | |
| 77 | |
| 78 mergeData(); | |
| 79 | |
| 80 output = new OutputAnalyzer(pb.start()); | |
| 81 output.shouldContain("Test (reserved=256KB, committed=0KB)"); | |
| 82 output.shouldNotMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed"); | |
| 83 | |
| 84 wb.NMTReleaseMemory(addr, reserveSize); | |
| 85 mergeData(); | |
| 86 | |
| 87 output = new OutputAnalyzer(pb.start()); | |
| 88 output.shouldNotContain("Test (reserved="); | |
| 89 output.shouldNotMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved"); | |
| 90 } | |
| 91 | |
| 92 public static void mergeData() throws Exception { | |
| 93 // Use WB API to ensure that all data has been merged before we continue | |
| 94 if (!wb.NMTWaitForDataMerge()) { | |
| 95 throw new Exception("Call to WB API NMTWaitForDataMerge() failed"); | |
| 96 } | |
| 97 } | |
| 98 } |