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Merge "Add thread to check for lock contention."

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This commit is contained in:
Olivier Gaillard
2022-04-20 17:06:08 +00:00
committed by Android (Google) Code Review
parent cfcaa507ae 7ad419a46c
commit 9744d62242
1 changed files with 9 additions and 4 deletions
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13
services/core/java/com/android/server/Watchdog.java
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@@ -390,11 +390,16 @@ public class Watchdog {
// potentially hold longer running operations with no guarantees about the timeliness
// of operations there.
//
// The shared foreground thread is the main checker. It is where we
// will also dispatch monitor checks and do other work.
mMonitorChecker = new HandlerChecker(FgThread.getHandler(),
"foreground thread");
// Use a custom thread to check monitors to avoid lock contention from impacted other
// threads.
ServiceThread t = new ServiceThread("watchdog.monitor",
android.os.Process.THREAD_PRIORITY_DEFAULT, true /*allowIo*/);
t.start();
mMonitorChecker = new HandlerChecker(new Handler(t.getLooper()), "monitor thread");
mHandlerCheckers.add(withDefaultTimeout(mMonitorChecker));
mHandlerCheckers.add(withDefaultTimeout(
new HandlerChecker(FgThread.getHandler(), "foreground thread")));
// Add checker for main thread. We only do a quick check since there
// can be UI running on the thread.
mHandlerCheckers.add(withDefaultTimeout(