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

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This commit is contained in:
Josh Gao
2021-05-20 21:51:30 +00:00
committed by Android (Google) Code Review
parent 43846ddb42 a6596c9925
commit 5eef411480
1 changed files with 20 additions and 0 deletions
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20
services/java/com/android/server/SystemServer.java
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@@ -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 {