/*
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* 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
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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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!!!");
}
}