[Sony Xperia XZ Premium ROMs, Kernels, Recoveries, ] LSS4181:
Is there any findings on the cause why eXistenZ would cause lockscreen lag with selinux enforcing?

I did a logcat and in an excerpt of it I found these when I wake up the phone.

02-27 11:24:27.331 1262 1551 I DreamManagerService: Gently waking up from dream.
02-27 11:24:27.331 1262 1544 I DreamManagerService: Performing gentle wake from dream.
02-27 11:24:27.343 1262 3232 I DreamManagerService: Leaving dreamland.
02-27 11:24:27.343 1262 1544 I DreamManagerService: Performing gentle wake from dream.
02-27 11:24:27.343 1262 1544 I DreamController: Stopping dream: name=ComponentInfo{com.android.systemui/com.android.systemui.doze.DozeService}, isTest=false, canDoze=true, userId=0
02-27 11:24:27.344 1262 1262 W AlarmManager: Unrecognized alarm listener com.android.server.job.controllers.-$$Lambda$IdleController$IdlenessTracker$nTdS-lGBXcES5VWKcJFmQFgU7IU@b0c26ba
02-27 11:24:27.380 934 1089 D SDM : DisplayBase::BuildLayerStackStats: LayerStack layer_count: 3, app_layer_count: 2, gpu_target_index: 2, display type: 0
02-27 11:24:27.395 934 1089 I chatty : uid=1000(system) HwBinder:934_2 identical 1 line
02-27 11:24:27.412 934 1089 D SDM : DisplayBase::BuildLayerStackStats: LayerStack layer_count: 3, app_layer_count: 2, gpu_target_index: 2, display type: 0
02-27 11:24:27.592 11730 11730 W libc : Unable to set property "sys.enable.smart_on_doze" to "0": error code: 0x18
02-27 11:24:27.593 11730 11730 D AndroidRuntime: Shutting down VM
02-27 11:24:27.594 11730 11730 E AndroidRuntime: FATAL EXCEPTION: main
02-27 11:24:27.594 11730 11730 E AndroidRuntime: Process: com.android.systemui, PID: 11730
02-27 11:24:27.594 11730 11730 E AndroidRuntime: java.lang.RuntimeException: failed to set system property
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at android.os.SystemProperties.native_set(Native Method)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at android.os.SystemProperties.set(SystemProperties.java:183)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at com.android.systemui.doze.DozeTriggers.transitionTo(Unknown Source:71)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at com.android.systemui.doze.DozeMachine.performTransitionOnComponents(Unknown Source:8)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at com.android.systemui.doze.DozeMachine.transitionTo(Unknown Source:77)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at com.android.systemui.doze.DozeMachine.requestState(Unknown Source:81)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at com.android.systemui.doze.DozeMachine.requestState(Unknown Source:11)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at com.android.systemui.doze.DozeService.onDreamingStopped(Unknown Source:11)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at android.service.dreams.DreamService.detach(DreamService.java:972)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at android.service.dreams.DreamService.access$800(DreamService.java:158)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at android.service.dreams.DreamService$DreamServiceWrapper$2.run(DreamService.java:1185)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at android.os.Handler.handleCallback(Handler.java:873)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at android.os.Handler.dispatchMessage(Handler.java:99)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at android.os.Looper.loop(Looper.java:280)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at android.app.ActivityThread.main(ActivityThread.java:6706)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at java.lang.reflect.Method.invoke(Native Method)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
02-27 11:24:27.594 11730 11730 E AndroidRuntime:	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
02-27 11:24:27.599 4735 4735 D ConnectivityManager: getMobileDataEnabled()+ subId=1
02-27 11:24:27.599 1262 10805 D ActivityManager: New dropbox entry: com.android.systemui, system_app_crash, a0d1752c-f89a-4ac5-b563-94482a9a259f
02-27 11:24:27.600 4735 4735 D ConnectivityManager: getMobileDataEnabled()- subId=1 retVal=true
02-27 11:24:27.601 1262 10805 W ActivityManager: Process com.android.systemui has crashed too many times: killing!
02-27 11:24:27.602 1262 1508 W BroadcastQueue: Skipping deliver [foreground] BroadcastRecord{6259072 u-1 android.intent.action.SCREEN_ON} to ReceiverList{9f5a3ef 11730 com.android.systemui/10046/u-1 remote:194b8ce}: process gone or crashing
02-27 11:24:27.602 1262 1508 W BroadcastQueue: Skipping deliver [foreground] BroadcastRecord{6259072 u-1 android.intent.action.SCREEN_ON} to ReceiverList{1c793da 11730 com.android.systemui/10046/u0 remote:9781985}: process gone or crashing
02-27 11:24:27.602 1262 1508 W BroadcastQueue: Skipping deliver [foreground] BroadcastRecord{6259072 u-1 android.intent.action.SCREEN_ON} to ReceiverList{b25c901 11730 com.android.systemui/10046/u0 remote:19cdee8}: process gone or crashing
02-27 11:24:27.602 1262 1508 W BroadcastQueue: Skipping deliver [foreground] BroadcastRecord{6259072 u-1 android.intent.action.SCREEN_ON} to ReceiverList{dd50194 11730 com.android.systemui/10046/u-1 remote:5e821e7}: process gone or crashing
02-27 11:24:27.602 1262 1508 W BroadcastQueue: Skipping deliver [foreground] BroadcastRecord{6259072 u-1 android.intent.action.SCREEN_ON} to ReceiverList{10af583 11730 com.android.systemui/10046/u0 remote:ad4c432}: process gone or crashing
02-27 11:24:27.602 1262 1508 W BroadcastQueue: Skipping deliver [foreground] BroadcastRecord{6259072 u-1 android.intent.action.SCREEN_ON} to ReceiverList{106f17e 11730 com.android.systemui/10046/u0 remote:bf19739}: process gone or crashing
02-27 11:24:27.602 1262 1508 W BroadcastQueue: Skipping deliver [foreground] BroadcastRecord{6259072 u-1 android.intent.action.SCREEN_ON} to ReceiverList{4cb6df5 11730 com.android.systemui/10046/u0 remote:ab6ef2c}: process gone or crashing
02-27 11:24:27.602 1262 1508 W BroadcastQueue: Skipping deliver [foreground] BroadcastRecord{6259072 u-1 android.intent.action.SCREEN_ON} to ReceiverList{39d218 11730 com.android.systemui/10046/u0 remote:a7b91fb}: process gone or crashing
02-27 11:24:27.602 1262 1508 W BroadcastQueue: Skipping deliver [foreground] BroadcastRecord{6259072 u-1 android.intent.action.SCREEN_ON} to ReceiverList{605f7c4 11730 com.android.systemui/10046/u-1 remote:be752d7}: process gone or crashing
02-27 11:24:27.606 11730 11730 I Process : Sending signal. PID: 11730 SIG: 9
02-27 11:24:27.611 1225 1225 I JavaDumper:main: dest_path: /data/system/log/jd_dropboxfiles/system_app_crash@1551237867610.txt
02-27 11:24:27.611 1225 1225 I JavaDumper:main: tot_read: 1522, tot_write: 1522
02-27 11:24:27.611 1225 1225 I JavaDumper:main: Successfully copied dropbox file to /data/system/log/jd_dropboxfiles/system_app_crash@1551237867610.txt
02-27 11:24:27.611 1225 1225 D clmlib : Got activities:0x00000008
02-27 11:24:27.612 1225 1225 I JavaDumper:JavaDumperThread: addEvent: system_app_crash@1551237867610.txt processName: com.android.systemui
02-27 11:24:27.612 1225 1296 I JavaDumper:JavaDumperThread: Event: system_app_crash@1551237867610.txt TimeStamp: 1551237867
02-27 11:24:27.612 1262 1508 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.intent.action.DROPBOX_ENTRY_ADDED flg=0x10 (has extras) } to com.google.android.gms/.stats.service.DropBoxEntryAddedReceiver
02-27 11:24:27.612 1262 1508 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.intent.action.DROPBOX_ENTRY_ADDED flg=0x10 (has extras) } to com.google.android.gms/.chimera.GmsIntentOperationService$PersistentTrustedReceiver
02-27 11:24:27.639 1225 1296 W JavaDumper:JavaDumper: Could not init dump dir: Unknown error -95
02-27 11:24:27.639 1225 1296 E JavaDumper:FW: utils.c(263): mkdir (/data/crashdata) failed. File exists
02-27 11:24:27.640 1225 1296 W JavaDumper:FW: utils.c(604): chmod failed : Operation not permitted
02-27 11:24:27.640 1225 1296 W JavaDumper:FW: utils.c(608): chown failed : Operation not permitted
02-27 11:24:27.640 1225 1296 E JavaDumper:FW: ramdump_framework.c(361): fp is NULL
02-27 11:24:27.640 1225 1296 E JavaDumper:FW: ramdump_framework.c(542): Read-only file system
02-27 11:24:27.691 1262 2116 W InputDispatcher: channel '9f5790e DockedStackDivider (server)' ~ Consumer closed input channel or an error occurred. events=0x9
02-27 11:24:27.692 1262 2116 E InputDispatcher: channel '9f5790e DockedStackDivider (server)' ~ Channel is unrecoverably broken and will be disposed!
02-27 11:24:27.692 1262 2116 W InputDispatcher: channel '226f2c2 AssistPreviewPanel (server)' ~ Consumer closed input channel or an error occurred. events=0x9
02-27 11:24:27.692 1262 2116 E InputDispatcher: channel '226f2c2 AssistPreviewPanel (server)' ~ Channel is unrecoverably broken and will be disposed!
02-27 11:24:27.695 1262 2116 W InputDispatcher: channel 'pip_input_consumer (server)' ~ Consumer closed input channel or an error occurred. events=0x9
02-27 11:24:27.695 1262 2116 E InputDispatcher: channel 'pip_input_consumer (server)' ~ Channel is unrecoverably broken and will be disposed!
02-27 11:24:27.695 1262 2116 W InputDispatcher: channel 'ffea6b2 StatusBar (server)' ~ Consumer closed input channel or an error occurred. events=0x9
02-27 11:24:27.695 1262 2116 E InputDispatcher: channel 'ffea6b2 StatusBar (server)' ~ Channel is unrecoverably broken and will be disposed!
02-27 11:24:27.695 1262 2116 W InputDispatcher: channel 'a12af90 NavigationBar (server)' ~ Consumer closed input channel or an error occurred. events=0x9
02-27 11:24:27.695 1262 2116 E InputDispatcher: channel 'a12af90 NavigationBar (server)' ~ Channel is unrecoverably broken and will be disposed!

It seems the SystemUI got a crash due to being unable to set "sys.enable.smart_on_doze" to 0 with an error code of 0x18, and kept crashing until killed by the system. This might explain the lengthened wake up time. Could this be selinux-related? This is on latest Zest kernel (02/24), although the delay in wakeup has been shortened lately (to around 1s compared to before, which can be negligible sometimes).