diff options
| -rw-r--r-- | services/tests/mockingservicestests/src/com/android/server/am/BroadcastQueueTest.java | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/services/tests/mockingservicestests/src/com/android/server/am/BroadcastQueueTest.java b/services/tests/mockingservicestests/src/com/android/server/am/BroadcastQueueTest.java index d7ba3df07533..90e6a2d0f34a 100644 --- a/services/tests/mockingservicestests/src/com/android/server/am/BroadcastQueueTest.java +++ b/services/tests/mockingservicestests/src/com/android/server/am/BroadcastQueueTest.java @@ -1981,6 +1981,46 @@ public class BroadcastQueueTest { } /** + * Confirm how many times a pathological broadcast pattern results in OOM + * adjusts; watches for performance regressions. + */ + @Test + public void testOomAdjust_TriggerCount() throws Exception { + final ProcessRecord callerApp = makeActiveProcessRecord(PACKAGE_RED); + + // Send 8 broadcasts, 4 receivers in the first process, + // and 2 alternating in each of the remaining processes + synchronized (mAms) { + for (int i = 0; i < 8; i++) { + final Intent intent = new Intent(Intent.ACTION_TIMEZONE_CHANGED); + mQueue.enqueueBroadcastLocked(makeBroadcastRecord(intent, callerApp, + List.of(makeManifestReceiver(PACKAGE_GREEN, CLASS_GREEN), + makeManifestReceiver(PACKAGE_GREEN, CLASS_GREEN), + makeManifestReceiver(PACKAGE_GREEN, CLASS_GREEN), + makeManifestReceiver(PACKAGE_GREEN, CLASS_GREEN), + makeManifestReceiver(PACKAGE_BLUE, CLASS_BLUE), + makeManifestReceiver(PACKAGE_YELLOW, CLASS_YELLOW), + makeManifestReceiver(PACKAGE_BLUE, CLASS_BLUE), + makeManifestReceiver(PACKAGE_YELLOW, CLASS_YELLOW)))); + } + } + waitForIdle(); + + final int expectedTimes; + switch (mImpl) { + // Original stack requested for every single receiver; yikes + case DEFAULT: expectedTimes = 64; break; + // Modern stack requests once each time we promote a process to + // running; we promote "green" twice, and "blue" and "yellow" once + case MODERN: expectedTimes = 4; break; + default: throw new UnsupportedOperationException(); + } + + verify(mAms, times(expectedTimes)) + .updateOomAdjPendingTargetsLocked(eq(OOM_ADJ_REASON_START_RECEIVER)); + } + + /** * Verify that expected events are triggered when a broadcast is finished. */ @Test |