Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 53731ea9 authored by Josh Gao's avatar Josh Gao
Browse files

fdtrack: add stats logging. 

Bug: http://b/183008833
Bug: http://b/183018597
Test: adb shell 'setprop persist.sys.debug.fdtrack_interval 10; stop; start' && statsd_testdrive 352
Change-Id: Ibc2293f8f1c7f0f29a166ac8dc93afc8dfd8b7de
parent 6cbc4013

services/java/com/android/server/SystemServer.java

+20 −0
Original line number Diff line number Diff line
@@ -545,6 +545,8 @@ public final class SystemServer implements Dumpable { 


        new Thread(() -> {

            boolean enabled = false;

            long nextWrite = 0;



            while (true) {

                int maxFd = getMaxFd();

                if (maxFd > enableThreshold) {
@@ -555,12 +557,30 @@ public final class SystemServer implements Dumpable { 


                if (maxFd > enableThreshold && !enabled) {

                    Slog.i("System", "fdtrack enable threshold reached, enabling");

                    FrameworkStatsLog.write(FrameworkStatsLog.FDTRACK_EVENT_OCCURRED,

                            FrameworkStatsLog.FDTRACK_EVENT_OCCURRED__EVENT__ENABLED,

                            maxFd);



                    System.loadLibrary("fdtrack");

                    enabled = true;

                } else if (maxFd > abortThreshold) {

                    Slog.i("System", "fdtrack abort threshold reached, dumping and aborting");

                    FrameworkStatsLog.write(FrameworkStatsLog.FDTRACK_EVENT_OCCURRED,

                            FrameworkStatsLog.FDTRACK_EVENT_OCCURRED__EVENT__ABORTING,

                            maxFd);



                    dumpHprof();

                    fdtrackAbort();

                } else {

                    // Limit this to once per hour.

                    long now = SystemClock.elapsedRealtime();

                    if (now > nextWrite) {

                        nextWrite = now + 60 * 60 * 1000;

                        FrameworkStatsLog.write(FrameworkStatsLog.FDTRACK_EVENT_OCCURRED,

                                enabled ? FrameworkStatsLog.FDTRACK_EVENT_OCCURRED__EVENT__ENABLED

                                        : FrameworkStatsLog.FDTRACK_EVENT_OCCURRED__EVENT__DISABLED,

                                maxFd);

                    }

                }



                try {