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test/lib/jdk/test/lib/containers/cgroup/MetricsTester.java
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@ rev 56863 : 8231111: Cgroups v2: Rework Metrics in java.base so as to recognize unified hierarchy
| Reviewed-by: bobv
~
*** 1,12 ****
/*
! * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
! * published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
--- 1,14 ----
/*
! * Copyright (c) 2019, Red Hat Inc.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
! * published by the Free Software Foundation. Oracle designates this
! * particular file as subject to the "Classpath" exception as provided
! * by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
*** 21,629 ****
* questions.
*/
package jdk.test.lib.containers.cgroup;
! import java.io.File;
! import java.io.FileNotFoundException;
! import java.io.IOException;
! import java.math.BigInteger;
! import java.nio.file.Files;
! import java.nio.file.Path;
! import java.nio.file.Paths;
! import java.util.Arrays;
! import java.util.HashMap;
! import java.util.HashSet;
! import java.util.Map;
! import java.util.Scanner;
! import java.util.Set;
! import java.util.stream.Collectors;
! import java.util.stream.IntStream;
! import java.util.stream.LongStream;
! import java.util.stream.Stream;
import jdk.internal.platform.Metrics;
public class MetricsTester {
! private static final double ERROR_MARGIN = 0.1;
! private static long unlimited_minimum = 0x7FFFFFFFFF000000L;
! long startSysVal;
! long startUserVal;
! long startUsage;
! long startPerCpu[];
!
! enum SubSystem {
! MEMORY("memory"),
! CPUSET("cpuset"),
! CPU("cpu"),
! CPUACCT("cpuacct"),
! BLKIO("blkio");
!
! private String value;
!
! SubSystem(String value) {
! this.value = value;
! }
!
! public String value() {
! return value;
! }
! }
!
! private static final Set<String> allowedSubSystems =
! Stream.of(SubSystem.values()).map(SubSystem::value).collect(Collectors.toSet());
!
! private static final Map<String, String[]> subSystemPaths = new HashMap<>();
!
! private static void setPath(String[] line) {
! String cgroupPath = line[2];
! String[] subSystems = line[1].split(",");
!
! for (String subSystem : subSystems) {
! if (allowedSubSystems.contains(subSystem)) {
! String[] paths = subSystemPaths.get(subSystem);
! String finalPath = "";
! String root = paths[0];
! String mountPoint = paths[1];
! if (root != null && cgroupPath != null) {
! if (root.equals("/")) {
! if (!cgroupPath.equals("/")) {
! finalPath = mountPoint + cgroupPath;
! } else {
! finalPath = mountPoint;
! }
! } else {
! if (root.equals(cgroupPath)) {
! finalPath = mountPoint;
! } else {
! if (cgroupPath.startsWith(root)) {
! if (cgroupPath.length() > root.length()) {
! String cgroupSubstr = cgroupPath.substring(root.length());
! finalPath = mountPoint + cgroupSubstr;
! }
! }
! }
! }
! }
! subSystemPaths.put(subSystem, new String[]{finalPath, mountPoint});
! }
! }
! }
!
! private static void createSubsystems(String[] line) {
! if (line.length < 5) return;
! Path p = Paths.get(line[4]);
! String subsystemName = p.getFileName().toString();
! if (subsystemName != null) {
! for (String subSystem : subsystemName.split(",")) {
! if (allowedSubSystems.contains(subSystem)) {
! subSystemPaths.put(subSystem, new String[]{line[3], line[4]});
! }
! }
! }
! }
!
! public void setup() {
! Metrics metrics = Metrics.systemMetrics();
! // Initialize CPU usage metrics before we do any testing.
! startSysVal = metrics.getCpuSystemUsage();
! startUserVal = metrics.getCpuUserUsage();
! startUsage = metrics.getCpuUsage();
! startPerCpu = metrics.getPerCpuUsage();
!
! try {
! Stream<String> lines = Files.lines(Paths.get("/proc/self/mountinfo"));
! lines.filter(line -> line.contains(" - cgroup cgroup "))
! .map(line -> line.split(" "))
! .forEach(MetricsTester::createSubsystems);
! lines.close();
!
! lines = Files.lines(Paths.get("/proc/self/cgroup"));
! lines.map(line -> line.split(":"))
! .filter(line -> (line.length >= 3))
! .forEach(MetricsTester::setPath);
! lines.close();
! } catch (IOException e) {
! }
! }
!
! private static String getFileContents(SubSystem subSystem, String fileName) {
! String fname = subSystemPaths.get(subSystem.value())[0] + File.separator + fileName;
! try {
! return new Scanner(new File(fname)).useDelimiter("\\Z").next();
! } catch (FileNotFoundException e) {
! System.err.println("Unable to open : " + fname);
! return "";
! }
! }
!
! private static long getLongValueFromFile(SubSystem subSystem, String fileName) {
! String data = getFileContents(subSystem, fileName);
! return data.isEmpty() ? 0L : convertStringToLong(data);
! }
!
! private static long convertStringToLong(String strval) {
! long retval = 0;
! if (strval == null) return 0L;
!
! try {
! retval = Long.parseLong(strval);
! } catch (NumberFormatException e) {
! // For some properties (e.g. memory.limit_in_bytes) we may overflow the range of signed long.
! // In this case, return Long.MAX_VALUE
! BigInteger b = new BigInteger(strval);
! if (b.compareTo(BigInteger.valueOf(Long.MAX_VALUE)) > 0) {
! return Long.MAX_VALUE;
! }
! }
! return retval;
! }
!
! private static long getLongValueFromFile(SubSystem subSystem, String metric, String subMetric) {
! String stats = getFileContents(subSystem, metric);
! String[] tokens = stats.split("[\\r\\n]+");
! for (int i = 0; i < tokens.length; i++) {
! if (tokens[i].startsWith(subMetric)) {
! String strval = tokens[i].split("\\s+")[1];
! return convertStringToLong(strval);
! }
! }
! return 0L;
! }
!
! private static double getDoubleValueFromFile(SubSystem subSystem, String fileName) {
! String data = getFileContents(subSystem, fileName);
! return data.isEmpty() ? 0.0 : Double.parseDouble(data);
! }
!
! private boolean compareWithErrorMargin(long oldVal, long newVal) {
! return Math.abs(oldVal - newVal) <= Math.abs(oldVal * ERROR_MARGIN);
! }
!
! private boolean compareWithErrorMargin(double oldVal, double newVal) {
! return Math.abs(oldVal - newVal) <= Math.abs(oldVal * ERROR_MARGIN);
! }
!
! private static void fail(SubSystem system, String metric, long oldVal, long testVal) {
! throw new RuntimeException("Test failed for - " + system.value + ":"
! + metric + ", expected [" + oldVal + "], got [" + testVal + "]");
! }
!
! private static void fail(SubSystem system, String metric, String oldVal, String testVal) {
! throw new RuntimeException("Test failed for - " + system.value + ":"
! + metric + ", expected [" + oldVal + "], got [" + testVal + "]");
! }
!
! private static void fail(SubSystem system, String metric, double oldVal, double testVal) {
! throw new RuntimeException("Test failed for - " + system.value + ":"
! + metric + ", expected [" + oldVal + "], got [" + testVal + "]");
! }
!
! private static void fail(SubSystem system, String metric, boolean oldVal, boolean testVal) {
! throw new RuntimeException("Test failed for - " + system.value + ":"
! + metric + ", expected [" + oldVal + "], got [" + testVal + "]");
! }
!
! private static void warn(SubSystem system, String metric, long oldVal, long testVal) {
! System.err.println("Warning - " + system.value + ":" + metric
! + ", expected [" + oldVal + "], got [" + testVal + "]");
! }
!
! public void testMemorySubsystem() {
! Metrics metrics = Metrics.systemMetrics();
!
! // User Memory
! long oldVal = metrics.getMemoryFailCount();
! long newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.failcnt");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.failcnt", oldVal, newVal);
! }
!
! oldVal = metrics.getMemoryLimit();
! newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.limit_in_bytes");
! newVal = newVal > unlimited_minimum ? -1L : newVal;
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.limit_in_bytes", oldVal, newVal);
! }
!
! oldVal = metrics.getMemoryMaxUsage();
! newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.max_usage_in_bytes");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.max_usage_in_bytes", oldVal, newVal);
! }
!
! oldVal = metrics.getMemoryUsage();
! newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.usage_in_bytes");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.usage_in_bytes", oldVal, newVal);
! }
!
! // Kernel memory
! oldVal = metrics.getKernelMemoryFailCount();
! newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.kmem.failcnt");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.kmem.failcnt", oldVal, newVal);
! }
!
! oldVal = metrics.getKernelMemoryLimit();
! newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.kmem.limit_in_bytes");
! newVal = newVal > unlimited_minimum ? -1L : newVal;
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.kmem.limit_in_bytes", oldVal, newVal);
! }
!
! oldVal = metrics.getKernelMemoryMaxUsage();
! newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.kmem.max_usage_in_bytes");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.kmem.max_usage_in_bytes", oldVal, newVal);
! }
!
! oldVal = metrics.getKernelMemoryUsage();
! newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.kmem.usage_in_bytes");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.kmem.usage_in_bytes", oldVal, newVal);
! }
! //TCP Memory
! oldVal = metrics.getTcpMemoryFailCount();
! newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.kmem.tcp.failcnt");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.kmem.tcp.failcnt", oldVal, newVal);
}
-
- oldVal = metrics.getTcpMemoryLimit();
- newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.kmem.tcp.limit_in_bytes");
- newVal = newVal > unlimited_minimum ? -1L : newVal;
- if (!compareWithErrorMargin(oldVal, newVal)) {
- fail(SubSystem.MEMORY, "memory.kmem.tcp.limit_in_bytes", oldVal, newVal);
- }
-
- oldVal = metrics.getTcpMemoryMaxUsage();
- newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.kmem.tcp.max_usage_in_bytes");
- if (!compareWithErrorMargin(oldVal, newVal)) {
- fail(SubSystem.MEMORY, "memory.kmem.tcp.max_usage_in_bytes", oldVal, newVal);
- }
-
- oldVal = metrics.getTcpMemoryUsage();
- newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.kmem.tcp.usage_in_bytes");
- if (!compareWithErrorMargin(oldVal, newVal)) {
- fail(SubSystem.MEMORY, "memory.kmem.tcp.usage_in_bytes", oldVal, newVal);
}
! // Memory and Swap
! oldVal = metrics.getMemoryAndSwapFailCount();
! newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.memsw.failcnt");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.memsw.failcnt", oldVal, newVal);
! }
!
! oldVal = metrics.getMemoryAndSwapLimit();
! newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.memsw.limit_in_bytes");
! newVal = newVal > unlimited_minimum ? -1L : newVal;
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.memsw.limit_in_bytes", oldVal, newVal);
! }
!
! oldVal = metrics.getMemoryAndSwapMaxUsage();
! newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.memsw.max_usage_in_bytes");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.memsw.max_usage_in_bytes", oldVal, newVal);
! }
!
! oldVal = metrics.getMemoryAndSwapUsage();
! newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.memsw.usage_in_bytes");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.memsw.usage_in_bytes", oldVal, newVal);
! }
!
! oldVal = metrics.getMemorySoftLimit();
! newVal = getLongValueFromFile(SubSystem.MEMORY, "memory.soft_limit_in_bytes");
! newVal = newVal > unlimited_minimum ? -1L : newVal;
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.MEMORY, "memory.soft_limit_in_bytes", oldVal, newVal);
! }
!
! boolean oomKillEnabled = metrics.isMemoryOOMKillEnabled();
! boolean newOomKillEnabled = getLongValueFromFile(SubSystem.MEMORY,
! "memory.oom_control", "oom_kill_disable") == 0L ? true : false;
! if (oomKillEnabled != newOomKillEnabled) {
! throw new RuntimeException("Test failed for - " + SubSystem.MEMORY.value + ":"
! + "memory.oom_control:oom_kill_disable" + ", expected ["
! + oomKillEnabled + "], got [" + newOomKillEnabled + "]");
! }
! }
!
! public void testCpuAccounting() {
! Metrics metrics = Metrics.systemMetrics();
! long oldVal = metrics.getCpuUsage();
! long newVal = getLongValueFromFile(SubSystem.CPUACCT, "cpuacct.usage");
!
! if (!compareWithErrorMargin(oldVal, newVal)) {
! warn(SubSystem.CPUACCT, "cpuacct.usage", oldVal, newVal);
! }
!
! Long[] newVals = Stream.of(getFileContents(SubSystem.CPUACCT, "cpuacct.usage_percpu")
! .split("\\s+"))
! .map(Long::parseLong)
! .toArray(Long[]::new);
! Long[] oldVals = LongStream.of(metrics.getPerCpuUsage()).boxed().toArray(Long[]::new);
! for (int i = 0; i < oldVals.length; i++) {
! if (!compareWithErrorMargin(oldVals[i], newVals[i])) {
! warn(SubSystem.CPUACCT, "cpuacct.usage_percpu", oldVals[i], newVals[i]);
! }
! }
!
! oldVal = metrics.getCpuUserUsage();
! newVal = getLongValueFromFile(SubSystem.CPUACCT, "cpuacct.stat", "user");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! warn(SubSystem.CPUACCT, "cpuacct.usage - user", oldVal, newVal);
! }
!
! oldVal = metrics.getCpuSystemUsage();
! newVal = getLongValueFromFile(SubSystem.CPUACCT, "cpuacct.stat", "system");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! warn(SubSystem.CPUACCT, "cpuacct.usage - system", oldVal, newVal);
! }
! }
!
! public void testCpuSchedulingMetrics() {
! Metrics metrics = Metrics.systemMetrics();
! long oldVal = metrics.getCpuPeriod();
! long newVal = getLongValueFromFile(SubSystem.CPUACCT, "cpu.cfs_period_us");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.CPUACCT, "cpu.cfs_period_us", oldVal, newVal);
! }
!
! oldVal = metrics.getCpuQuota();
! newVal = getLongValueFromFile(SubSystem.CPUACCT, "cpu.cfs_quota_us");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.CPUACCT, "cpu.cfs_quota_us", oldVal, newVal);
! }
!
! oldVal = metrics.getCpuShares();
! newVal = getLongValueFromFile(SubSystem.CPUACCT, "cpu.shares");
! if (newVal == 0 || newVal == 1024) newVal = -1;
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.CPUACCT, "cpu.shares", oldVal, newVal);
! }
!
! oldVal = metrics.getCpuNumPeriods();
! newVal = getLongValueFromFile(SubSystem.CPUACCT, "cpu.stat", "nr_periods");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.CPUACCT, "cpu.stat - nr_periods", oldVal, newVal);
! }
!
! oldVal = metrics.getCpuNumThrottled();
! newVal = getLongValueFromFile(SubSystem.CPUACCT, "cpu.stat", "nr_throttled");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.CPUACCT, "cpu.stat - nr_throttled", oldVal, newVal);
! }
!
! oldVal = metrics.getCpuThrottledTime();
! newVal = getLongValueFromFile(SubSystem.CPUACCT, "cpu.stat", "throttled_time");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.CPUACCT, "cpu.stat - throttled_time", oldVal, newVal);
! }
! }
!
! public void testCpuSets() {
! Metrics metrics = Metrics.systemMetrics();
! Integer[] oldVal = Arrays.stream(metrics.getCpuSetCpus()).boxed().toArray(Integer[]::new);
! Arrays.sort(oldVal);
!
! String cpusstr = getFileContents(SubSystem.CPUSET, "cpuset.cpus");
! // Parse range string in the format 1,2-6,7
! Integer[] newVal = Stream.of(cpusstr.split(",")).flatMap(a -> {
! if (a.contains("-")) {
! String[] range = a.split("-");
! return IntStream.rangeClosed(Integer.parseInt(range[0]),
! Integer.parseInt(range[1])).boxed();
! } else {
! return Stream.of(Integer.parseInt(a));
! }
! }).toArray(Integer[]::new);
! Arrays.sort(newVal);
! if (Arrays.compare(oldVal, newVal) != 0) {
! fail(SubSystem.CPUSET, "cpuset.cpus", Arrays.toString(oldVal),
! Arrays.toString(newVal));
! }
!
! int [] cpuSets = metrics.getEffectiveCpuSetCpus();
!
! // Skip this test if this metric is supported on this platform
! if (cpuSets.length != 0) {
! oldVal = Arrays.stream(cpuSets).boxed().toArray(Integer[]::new);
! Arrays.sort(oldVal);
! cpusstr = getFileContents(SubSystem.CPUSET, "cpuset.effective_cpus");
! newVal = Stream.of(cpusstr.split(",")).flatMap(a -> {
! if (a.contains("-")) {
! String[] range = a.split("-");
! return IntStream.rangeClosed(Integer.parseInt(range[0]),
! Integer.parseInt(range[1])).boxed();
! } else {
! return Stream.of(Integer.parseInt(a));
! }
! }).toArray(Integer[]::new);
! Arrays.sort(newVal);
! if (Arrays.compare(oldVal, newVal) != 0) {
! fail(SubSystem.CPUSET, "cpuset.effective_cpus", Arrays.toString(oldVal),
! Arrays.toString(newVal));
! }
! }
!
! oldVal = Arrays.stream(metrics.getCpuSetMems()).boxed().toArray(Integer[]::new);
! Arrays.sort(oldVal);
! cpusstr = getFileContents(SubSystem.CPUSET, "cpuset.mems");
! newVal = Stream.of(cpusstr.split(",")).flatMap(a -> {
! if (a.contains("-")) {
! String[] range = a.split("-");
! return IntStream.rangeClosed(Integer.parseInt(range[0]),
! Integer.parseInt(range[1])).boxed();
! } else {
! return Stream.of(Integer.parseInt(a));
! }
! }).toArray(Integer[]::new);
! Arrays.sort(newVal);
! if (Arrays.compare(oldVal, newVal) != 0) {
! fail(SubSystem.CPUSET, "cpuset.mems", Arrays.toString(oldVal),
! Arrays.toString(newVal));
! }
!
! int [] cpuSetMems = metrics.getEffectiveCpuSetMems();
!
! // Skip this test if this metric is supported on this platform
! if (cpuSetMems.length != 0) {
! oldVal = Arrays.stream(cpuSetMems).boxed().toArray(Integer[]::new);
! Arrays.sort(oldVal);
! cpusstr = getFileContents(SubSystem.CPUSET, "cpuset.effective_mems");
! newVal = Stream.of(cpusstr.split(",")).flatMap(a -> {
! if (a.contains("-")) {
! String[] range = a.split("-");
! return IntStream.rangeClosed(Integer.parseInt(range[0]),
! Integer.parseInt(range[1])).boxed();
! } else {
! return Stream.of(Integer.parseInt(a));
! }
! }).toArray(Integer[]::new);
! Arrays.sort(newVal);
! if (Arrays.compare(oldVal, newVal) != 0) {
! fail(SubSystem.CPUSET, "cpuset.effective_mems", Arrays.toString(oldVal),
! Arrays.toString(newVal));
! }
! }
!
! double oldValue = metrics.getCpuSetMemoryPressure();
! double newValue = getDoubleValueFromFile(SubSystem.CPUSET, "cpuset.memory_pressure");
! if (!compareWithErrorMargin(oldValue, newValue)) {
! fail(SubSystem.CPUSET, "cpuset.memory_pressure", oldValue, newValue);
! }
!
! boolean oldV = metrics.isCpuSetMemoryPressureEnabled();
! boolean newV = getLongValueFromFile(SubSystem.CPUSET,
! "cpuset.memory_pressure_enabled") == 1 ? true : false;
! if (oldV != newV) {
! fail(SubSystem.CPUSET, "cpuset.memory_pressure_enabled", oldV, newV);
! }
! }
!
! public void testBlkIO() {
! Metrics metrics = Metrics.systemMetrics();
! long oldVal = metrics.getBlkIOServiceCount();
! long newVal = getLongValueFromFile(SubSystem.BLKIO,
! "blkio.throttle.io_service_bytes", "Total");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.BLKIO, "blkio.throttle.io_service_bytes - Total",
! oldVal, newVal);
! }
!
! oldVal = metrics.getBlkIOServiced();
! newVal = getLongValueFromFile(SubSystem.BLKIO, "blkio.throttle.io_serviced", "Total");
! if (!compareWithErrorMargin(oldVal, newVal)) {
! fail(SubSystem.BLKIO, "blkio.throttle.io_serviced - Total", oldVal, newVal);
! }
! }
!
! public void testCpuConsumption() throws IOException, InterruptedException {
! Metrics metrics = Metrics.systemMetrics();
! // make system call
! long newSysVal = metrics.getCpuSystemUsage();
! long newUserVal = metrics.getCpuUserUsage();
! long newUsage = metrics.getCpuUsage();
! long[] newPerCpu = metrics.getPerCpuUsage();
!
! // system/user CPU usage counters may be slowly increasing.
! // allow for equal values for a pass
! if (newSysVal < startSysVal) {
! fail(SubSystem.CPU, "getCpuSystemUsage", newSysVal, startSysVal);
! }
!
! // system/user CPU usage counters may be slowly increasing.
! // allow for equal values for a pass
! if (newUserVal < startUserVal) {
! fail(SubSystem.CPU, "getCpuUserUsage", newUserVal, startUserVal);
! }
!
! if (newUsage <= startUsage) {
! fail(SubSystem.CPU, "getCpuUsage", newUsage, startUsage);
! }
!
! boolean success = false;
! for (int i = 0; i < startPerCpu.length; i++) {
! if (newPerCpu[i] > startPerCpu[i]) {
! success = true;
! break;
! }
! }
!
! if(!success) fail(SubSystem.CPU, "getPerCpuUsage", Arrays.toString(newPerCpu),
! Arrays.toString(startPerCpu));
! }
!
! public void testMemoryUsage() throws Exception {
! Metrics metrics = Metrics.systemMetrics();
! long memoryMaxUsage = metrics.getMemoryMaxUsage();
! long memoryUsage = metrics.getMemoryUsage();
! long newMemoryMaxUsage = 0, newMemoryUsage = 0;
!
! // allocate memory in a loop and check more than once for new values
! // otherwise we might see seldom the effect of decreasing new memory values
! // e.g. because the system could free up memory
! byte[][] bytes = new byte[32][];
! for (int i = 0; i < 32; i++) {
! bytes[i] = new byte[8*1024*1024];
! newMemoryUsage = metrics.getMemoryUsage();
! if (newMemoryUsage > memoryUsage) {
! break;
! }
! }
! newMemoryMaxUsage = metrics.getMemoryMaxUsage();
!
! if (newMemoryMaxUsage < memoryMaxUsage) {
! fail(SubSystem.MEMORY, "getMemoryMaxUsage", memoryMaxUsage,
! newMemoryMaxUsage);
! }
!
! if (newMemoryUsage < memoryUsage) {
! fail(SubSystem.MEMORY, "getMemoryUsage", memoryUsage, newMemoryUsage);
! }
}
public static void main(String[] args) throws Exception {
// If cgroups is not configured, report success
! Metrics metrics = Metrics.systemMetrics();
! if (metrics == null) {
System.out.println("TEST PASSED!!!");
return;
}
MetricsTester metricsTester = new MetricsTester();
! metricsTester.setup();
! metricsTester.testCpuAccounting();
! metricsTester.testCpuSchedulingMetrics();
! metricsTester.testCpuSets();
! metricsTester.testMemorySubsystem();
! metricsTester.testBlkIO();
! metricsTester.testCpuConsumption();
! metricsTester.testMemoryUsage();
System.out.println("TEST PASSED!!!");
}
}
--- 23,79 ----
* questions.
*/
package jdk.test.lib.containers.cgroup;
! import java.util.Objects;
!
import jdk.internal.platform.Metrics;
+ /**
+ * Cgroup version agnostic metrics tester
+ *
+ */
public class MetricsTester {
! private static final String CGROUP_V1 = "cgroupv1";
! private static final String CGROUP_V2 = "cgroupv2";
! private static CgroupMetricsTester createInstance(Metrics m) {
! Objects.requireNonNull(m);
! if (CGROUP_V1.equals(m.getProvider())) {
! MetricsTesterCgroupV1 t = new MetricsTesterCgroupV1();
! t.setup();
! return t;
! } else if (CGROUP_V2.equals(m.getProvider())) {
! return new MetricsTesterCgroupV2();
! } else {
! System.err.println("WARNING: Metrics provider, '" + m.getProvider()
! + "' is unknown!");
! return null;
}
}
! public void testAll(Metrics m) throws Exception {
! CgroupMetricsTester tester = createInstance(m);
! tester.testCpuAccounting();
! tester.testCpuConsumption();
! tester.testCpuSchedulingMetrics();
! tester.testCpuSets();
! tester.testMemorySubsystem();
! tester.testMemoryUsage();
! tester.testMisc();
}
public static void main(String[] args) throws Exception {
+ Metrics m = Metrics.systemMetrics();
// If cgroups is not configured, report success
! if (m == null) {
System.out.println("TEST PASSED!!!");
return;
}
MetricsTester metricsTester = new MetricsTester();
! metricsTester.testAll(m);
System.out.println("TEST PASSED!!!");
}
}
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