0. 前言
GTS 在测试 case armeabi-v7a GtsMemoryHostTestCases 的时候出现下面异常，本文总结一下。
com.google.android.memory.gts.AllAppsMemoryHostTest#testPeakPssOfAllApps
1. error log
09-14 10:16:34 I/TestFailureListener: FailureListener.testFailed com.google.android.memory.gts.AllAppsMemoryHostTest#testPeakPssOfAllApps false
09-14 10:16:34 D/PrettyTestEventLogger:
==================== com.google.android.memory.gts.AllAppsMemoryHostTest#testPeakPssOfAllApps ENDED: Thu Sep 14 10:16:34 CST 2023 ====================
09-14 10:16:34 I/ModuleListener: [1/1] d4081bc5 com.android.compatibility.common.tradefed.testtype.JarHostTest com.google.android.memory.gts.AllAppsMemoryHostTest#testPeakPssOfAllApps FAILURE: com.android.tradefed.device.DeviceUnresponsiveException[DEVICE_UNRESPONSIVE|520751|LOST_SYSTEM_UNDER_TEST]: Attempted shell am start -W -S -f 10008000 'com.google.android.apps.mapslite/com.google.maps.lite.twa.MapsLiteTwaLauncherActivity' multiple times on device d4081bc5 without communication success. Aborting.
at com.android.tradefed.device.NativeDevice.performDeviceAction(NativeDevice.java:2577)
at com.android.tradefed.device.NativeDevice.executeShellCommand(NativeDevice.java:902)
at com.android.tradefed.device.NativeDevice.executeShellCommand(NativeDevice.java:959)
at com.google.android.memory.gts.AllAppsMemoryHostTest.testPeakPssOfAllApps(AllAppsMemoryHostTest.java:109)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:61)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:54)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
at com.android.tradefed.testtype.DeviceJUnit4ClassRunner.runChild(DeviceJUnit4ClassRunner.java:111)
at com.android.tradefed.testtype.DeviceJUnit4ClassRunner.runChild(DeviceJUnit4ClassRunner.java:63)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at com.android.tradefed.testtype.DeviceJUnit4ClassRunner.run(DeviceJUnit4ClassRunner.java:147)
at com.android.tradefed.testtype.junit4.ExceptionThrowingRunnerWrapper.run(ExceptionThrowingRunnerWrapper.java:43)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.android.tradefed.testtype.HostTest.runJUnit4Tests(HostTest.java:736)
at com.android.tradefed.testtype.HostTest.runTestClasses(HostTest.java:616)
at com.android.tradefed.testtype.HostTest.run(HostTest.java:564)
at com.android.compatibility.common.tradefed.testtype.JarHostTest.run(JarHostTest.java:56)
at com.android.tradefed.testtype.suite.GranularRetriableTestWrapper.intraModuleRun(GranularRetriableTestWrapper.java:379)
at com.android.tradefed.testtype.suite.GranularRetriableTestWrapper.run(GranularRetriableTestWrapper.java:289)
at com.android.tradefed.testtype.suite.ModuleDefinition.run(ModuleDefinition.java:595)
at com.android.tradefed.testtype.suite.ITestSuite.runSingleModule(ITestSuite.java:951)
at com.android.tradefed.testtype.suite.ITestSuite.run(ITestSuite.java:828)
at com.android.tradefed.invoker.InvocationExecution.runTest(InvocationExecution.java:1359)
at com.android.tradefed.invoker.InvocationExecution.runTests(InvocationExecution.java:1138)
at com.android.tradefed.invoker.TestInvocation.prepareAndRun(TestInvocation.java:626)
at com.android.tradefed.invoker.TestInvocation.performInvocation(TestInvocation.java:278)
at com.android.tradefed.invoker.TestInvocation.invoke(TestInvocation.java:1357)
at com.android.tradefed.command.CommandScheduler$InvocationThread.run(CommandScheduler.java:686)
Caused by: com.android.ddmlib.ShellCommandUnresponsiveException
at com.android.ddmlib.AdbHelper.executeRemoteCommand(AdbHelper.java:731)
at com.android.ddmlib.AdbHelper.executeRemoteCommand(AdbHelper.java:511)
at com.android.ddmlib.internal.DeviceImpl.executeShellCommand(DeviceImpl.java:722)
at com.android.tradefed.device.NativeDevice$2.run(NativeDevice.java:897)
at com.android.tradefed.device.NativeDevice.performDeviceAction(NativeDevice.java:2525)
... 44 more2. source code
public void testPeakPssOfAllApps() throws Exception {
final int flags = 268468224;
//------------step1
final String[] activities = ActivityQueryHelper.ALL_APPS_QUERY.run(this.getDevice());
Assert.assertTrue("No activities found", activities.length > 0);
final Set<String> exemptedActivities = new HashSet<String>();
for (final ActivityQuery query : ActivityQueryHelper.APPS_BY_CATEGORY) {
exemptedActivities.addAll(Arrays.asList(query.run(this.getDevice())));
}
//------------step2
final Set<String> exemptedPackages = new HashSet<String>();
exemptedPackages.addAll(this.readExemptions("gallery_exemptions"));
exemptedPackages.addAll(this.readExemptions("streaming_music_apps"));
exemptedPackages.addAll(this.readExemptions("streaming_video_apps"));
exemptedPackages.addAll(this.readExemptions("all_apps_memory_exemptions"));
final List<String> activityList = new ArrayList<String>(Arrays.asList(activities));
//------------step3
final Iterator<String> it = activityList.iterator();
while (it.hasNext()) {
final String activity = it.next();
final String packageName = activity.split("/")[0];
if (exemptedPackages.contains(packageName)) {
LogUtil.CLog.d("exempt package " + packageName);
it.remove();
}
else {
if (!exemptedActivities.contains(activity)) {
continue;
}
LogUtil.CLog.d("exempt activity " + activity);
it.remove();
}
}
//------------step4
LogUtil.CLog.d("These apps will be checked: " + String.join(",", activityList));
//------------step5
final long maxPeakPssAllowed = this.calculateMaxAllowedPeakPssUsage("max_memory_all_apps");
final StringBuilder violations = new StringBuilder();
for (final String activity2 : activityList) {
//------------step6
final String packageName2 = activity2.split("/")[0];
this.runPostNotificationPermissionTest("grantRuntimePermission", packageName2);
final String amOutput = this.getDevice().executeShellCommand(this.buildStartActivityCommand(activity2, 268468224));
Assert.assertTrue(activity2 + " failed to start", amOutput.contains("Status: ok"));
TimeUnit.SECONDS.sleep(30L);
if (this.shouldExemptTopActivity(exemptedActivities)) {
continue;
}
//------------step7
final long memoryKb = this.getMemoryUsage(packageName2);
this.stopApplication(packageName2);
if (memoryKb >= maxPeakPssAllowed) {
violations.append(packageName2).append(" ").append(memoryKb).append(",");
}
this.runPostNotificationPermissionTest("revokeRuntimePermission", packageName2);
}
//------------step8
if (violations.length() > 0) {
violations.append(" failed to keep to the max pss of ");
violations.append(maxPeakPssAllowed);
Assert.fail(violations.toString());
}
}源码比较多，都封装在 GtsMemoryHostTestCases.jar 中。这里只是来看下 test 接口。
step1. 查找所有符合要求的activity
通过 ActivityQueryHelper.ALL_APPS_QUERY 来查询所有符合条件的 activities：
ActivityQueryHelper.java
ALL_APPS_QUERY = new ActivityQuery().setAction("android.intent.action.MAIN").setCategory("android.intent.category.LAUNCHER");要求Action 为 android.intent.action.MAIN，category 为 android.intent.category.LAUNCHER 的所有 Activities。
step2. 确定免除的package
final Set<String> exemptedPackages = new HashSet<String>();
exemptedPackages.addAll(this.readExemptions("gallery_exemptions"));
exemptedPackages.addAll(this.readExemptions("streaming_music_apps"));
exemptedPackages.addAll(this.readExemptions("streaming_video_apps"));
exemptedPackages.addAll(this.readExemptions("all_apps_memory_exemptions"));这些可以免除的 package 都定义在 GtsMemoryHostTestCases.dynamic 文件中。
step3. 轮询确定最终的activity
被免除的应用会在 log 中打印出来：
09-14 10:02:54 D/AllAppsMemoryHostTest: exempt activity com.android.chrome/com.google.android.apps.chrome.Main
09-14 10:02:54 D/AllAppsMemoryHostTest: exempt activity com.google.android.apps.photosgo/.home.HomeActivity
09-14 10:02:54 D/AllAppsMemoryHostTest: exempt package com.google.android.youtube
09-14 10:02:54 D/AllAppsMemoryHostTest: exempt activity org.codeaurora.dialer/com.android.dialer.main.impl.MainActivity
09-14 10:02:54 D/AllAppsMemoryHostTest: exempt package com.google.android.apps.nbu.filesstep4. 确定最终可以check 的activity
在经过 step3 之后，log 中会打印出最终需要 check 的acitivity：
09-14 10:02:54 D/AllAppsMemoryHostTest: These apps will be checked: com.android.mms/.ui.ConversationList,
com.android.settings/.Settings,
com.android.soundrecorder/.SoundRecorder,
com.android.vending/.AssetBrowserActivity,
com.google.android.apps.assistant/.go.MainActivity,
com.google.android.apps.messaging/.ui.ConversationListActivity,
com.google.android.apps.tachyon/.MainActivity,
com.google.android.calculator/com.android.calculator2.Calculator,
com.google.android.calendar/com.android.calendar.AllInOneActivity,
com.google.android.contacts/com.android.contacts.activities.PeopleActivity,
com.google.android.deskclock/com.android.deskclock.DeskClock,
com.google.android.dialer/.extensions.GoogleDialtactsActivity,
org.codeaurora.snapcam/com.android.camera.CameraLauncher,
com.caf.fmradio/.FMRadio,
com.google.android.apps.mapslite/com.google.maps.lite.twa.MapsLiteTwaLauncherActivity,
com.google.android.apps.searchlite/.ui.SearchActivitystep5. 确定设备的 layout size，并确定peakPss
设备的layout size 在《GTS 中testPersistentProcessMemory fail 详解》一文中已经分析过，详细看第 2.1 节。
这里最终根据 layout size 确定 peakPss，该属性值都定义 GtsMemoryHostTestCases.dynamic 文件中：
...
<entry key="max_memory_all_apps_2gb_hd">
<value>153600</value>
</entry>
...step6. 轮询待check的activities，确定package name，并申请 android.permission.POST_NOTIFICATIONS 权限。
step7. 确定进程内存，并关闭notification 权限
通过 dumpsys -t 30 meminfo --package packageName 的命令确定进程内存，依然通过 Pattern 类确定内存：
final List<String> usages = new ArrayList<String>();
final Matcher matcher = Pattern.compile("TOTAL\\s+([\\d]+)").matcher(output);
while (matcher.find()) {
usages.add(matcher.group(1));
}
Assert.assertFalse("Could not get meminfo total for " + packageName, usages.isEmpty());
return usages.stream().mapToLong((ToLongFunction<? super Object>)Long::valueOf).sum();step8. 统计超过 max pss
如果有进程的 memory 超过了 peakPss，则会打印显示
3. 解决方案
本文中的 error log 从host log 中比较清晰：
09-14 10:12:33 W/NativeDevice: Command: 'shell am start -W -S -f 10008000 'com.google.android.apps.mapslite/com.google.maps.lite.twa.MapsLiteTwaLauncherActivity'' on 'd4081bc5' went over its timeout for outputing a response.
09-14 10:14:34 W/NativeDevice: Command: 'shell am start -W -S -f 10008000 'com.google.android.apps.mapslite/com.google.maps.lite.twa.MapsLiteTwaLauncherActivity'' on 'd4081bc5' went over its timeout for outputing a response.
09-14 10:16:34 W/NativeDevice: Command: 'shell am start -W -S -f 10008000 'com.google.android.apps.mapslite/com.google.maps.lite.twa.MapsLiteTwaLauncherActivity'' on 'd4081bc5' went over its timeout for outputing a response.
09-14 10:16:34 I/TestFailureListener: FailureListener.testFailed com.google.android.memory.gts.AllAppsMemoryHostTest#testPeakPssOfAllApps false
...
09-14 10:16:34 W/GranularRetriableTestWrapper: com.android.tradefed.device.DeviceUnresponsiveException[DEVICE_UNRESPONSIVE|520751|LOST_SYSTEM_UNDER_TEST]: Attempted shell am start -W -S -f 10008000 'com.google.android.apps.mapslite/com.google.maps.lite.twa.MapsLiteTwaLauncherActivity' multiple times on device d4081bc5 without communication success. Aborting.根本原因是启动这个 acitivity 没有返回 Staatus: ok 的状态
