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Commit 5fad1b4f authored by Shai Barack's avatar Shai Barack
Browse files

Sleep in ZygoteProcess.start() if ablation study enabled 

Bug: 423047108
Flag: android.os.zygote_app_launch_latency_ablation
Change-Id: I3ad679c68ce34ac3397629cdd82d5bf66bccbe89
parent 60957d09

core/java/android/os/ZygoteProcess.java

+11 −0
Original line number Diff line number Diff line
@@ -360,6 +360,17 @@ public class ZygoteProcess { 
                                                  boolean bindMountAppStorageDirs,

                                                  boolean bindOverrideSysprops,

                                                  @Nullable String[] zygoteArgs) {

        if (Flags.zygoteAppLaunchLatencyAblation()) {

            final long sleepUntilMs = System.currentTimeMillis() + 5;

            long nextSleepMs = 5;

            while (nextSleepMs > 0) {

                try {

                    Thread.sleep(nextSleepMs);

                } catch (InterruptedException ignored) {}

                nextSleepMs = sleepUntilMs - System.currentTimeMillis();

            }

        }



        // TODO (chriswailes): Is there a better place to check this value?

        if (fetchUsapPoolEnabledPropWithMinInterval()) {

            informZygotesOfUsapPoolStatus();