JDK-8322475 : Extend printing for System.map
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 22
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: linux
  • Submitted: 2023-12-19
  • Updated: 2024-07-29
  • Resolved: 2024-07-03
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JDK 24
24 b05Fixed
Related Reports
Relates :  
JDK-8335643 - serviceability/dcmd/vm tests fail for ZGC after JDK-8322475
Relates :  
JDK-8334026 - Provide a diagnostic PrintMemoryMapAtExit switch on Linux
Relates :  
JDK-8318636 - Add jcmd to print annotated process memory map
Relates :  
JDK-8335710 - serviceability/dcmd/vm/SystemDumpMapTest.java and SystemMapTest.java fail on Linux Alpine after 8322475
Description
Make System.map and System.dump_map drastically more useful by adding:
- the actual memory used per mapping (RSS)
- the actual page size of the mapping
- THP state (used, advised, eligible, forbidden)
- the commit state
- swap state

Also, provide a summary for:
- total RSS
- total size of hugetlb memory
- how much memory uses THPs
- how much memory had been swapped out
- how much memory was committed
Comments
Unfortunately those 2 tests fail now on Linux Alpine (x86_64) ; I created https://bugs.openjdk.org/browse/JDK-8335710 . serviceability/dcmd/vm/SystemDumpMapTest.java Missing patterns in dump: 0x\\p{XDigit}+-0x\\p{XDigit}+ +\\d+ +[rwsxp-]+ +\\d+ +\\d+ +(4K|8K|16K|64K|2M|16M|64M) +com.*\\[vdso\\] test SystemDumpMapTest.jmx(): failure java.lang.RuntimeException: java.lang.RuntimeException: Missing patterns at SystemDumpMapTest.run_test(SystemDumpMapTest.java:100) at SystemDumpMapTest.run(SystemDumpMapTest.java:106) at SystemDumpMapTest.jmx(SystemDumpMapTest.java:112) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132) at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:599) at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:174) at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46) at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:822) at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:147) at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146) at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128) at java.base/java.util.ArrayList.forEach(ArrayList.java:1597) at org.testng.TestRunner.privateRun(TestRunner.java:764) at org.testng.TestRunner.run(TestRunner.java:585) at org.testng.SuiteRunner.runTest(SuiteRunner.java:384) at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378) at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337) at org.testng.SuiteRunner.run(SuiteRunner.java:286) at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53) at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96) at org.testng.TestNG.runSuitesSequentially(TestNG.java:1218) at org.testng.TestNG.runSuitesLocally(TestNG.java:1140) at org.testng.TestNG.runSuites(TestNG.java:1069) at org.testng.TestNG.run(TestNG.java:1037) at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:102) at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:58) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138) at java.base/java.lang.Thread.run(Thread.java:1575) Caused by: java.lang.RuntimeException: Missing patterns at SystemDumpMapTest.run_test(SystemDumpMapTest.java:96) ... 31 more =============================================== serviceability/dcmd/vm/SystemDumpMapTest.java Total tests run: 1, Passes: 0, Failures: 1, Skips: 0 =============================================== serviceability/dcmd/vm/SystemMapTest.java : test SystemMapTest.jmx(): failure java.lang.RuntimeException: '0x\\p{XDigit}+-0x\\p{XDigit}+ +\\d+ +[rwsxp-]+ +\\d+ +\\d+ +(4K|8K|16K|64K|2M|16M|64M) +com.*\\[vdso\\]' missing from stdout/stderr at jdk.test.lib.process.OutputAnalyzer.shouldMatch(OutputAnalyzer.java:371) at SystemMapTest.run(SystemMapTest.java:46) at SystemMapTest.jmx(SystemMapTest.java:57) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132) at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:599) at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:174) at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46) at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:822) at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:147) at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146) at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128) at java.base/java.util.ArrayList.forEach(ArrayList.java:1597) at org.testng.TestRunner.privateRun(TestRunner.java:764) at org.testng.TestRunner.run(TestRunner.java:585) at org.testng.SuiteRunner.runTest(SuiteRunner.java:384) at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378) at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337) at org.testng.SuiteRunner.run(SuiteRunner.java:286) at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53) at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96) at org.testng.TestNG.runSuitesSequentially(TestNG.java:1218) at org.testng.TestNG.runSuitesLocally(TestNG.java:1140) at org.testng.TestNG.runSuites(TestNG.java:1069) at org.testng.TestNG.run(TestNG.java:1037) at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:102) at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:58) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138) at java.base/java.lang.Thread.run(Thread.java:1575) =============================================== serviceability/dcmd/vm/SystemMapTest.java Total tests run: 1, Passes: 0, Failures: 1, Skips: 0 ===============================================
04-07-2024
[~stuefe] Looks like some serviceability/dcmd/vm tests started failing with this change, see JDK-8335643
03-07-2024
Changeset: 8aaec37a Author: Thomas Stuefe <stuefe@openjdk.org> Date: 2024-07-03 16:08:34 +0000 URL: https://git.openjdk.org/jdk/commit/8aaec37ace102b55ee1387cfd1967ec3ab662083
03-07-2024
A pull request was submitted for review. URL: https://git.openjdk.org/jdk/pull/17158 Date: 2023-12-19 15:48:58 +0000
19-12-2023