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Commit fd756260 authored by Josh Gao's avatar Josh Gao Committed by Automerger Merge Worker
Browse files

Merge "fdtrack: add stats logging." into sc-dev am: 5eef4114 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14649367

Change-Id: I268e5db1e0177149493c85d1dc67069f6c4f781d
parents ddd5a2b1 5eef4114

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

+20 −0
Original line number Diff line number Diff line
@@ -546,6 +546,8 @@ public final class SystemServer implements Dumpable { 


        new Thread(() -> {

            boolean enabled = false;

            long nextWrite = 0;



            while (true) {

                int maxFd = getMaxFd();

                if (maxFd > enableThreshold) {
@@ -556,12 +558,30 @@ 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 {