CK III - Stutting performance

xenobrain · Sep 1, 2020

Short summary of your issue Stutting performance

Game Version 1.0.2

What OS are you playing on?
Linux

What platform are you using?
Steam

Do you have mods enabled? No

Have you tried verifying your game files (Steam only)?
Yes

How much "pain" is this causing you?
10

Please explain the issue you experienced in the most condensed way possible
Half second stutters every two seconds, including in menu. No difference fullscreen or windowed mode. No difference in performance settings.

Please explain how to reproduce the issue
Launch the game

Is there anything else you think could help us identify/replicate the issue?
System:
Arch Linux 64-bit. Intel Core i9-9900k. Nvidia Geforce RTX 2080Ti w/ proprietary drivers. KDE Plasma desktop. All software up to date as of 9/1/2020.

Cederstronk · Sep 1, 2020

Hello unmerged(212459),

Thanks for reporting this issue - We require a DXDiag log file to properly investigate the issue. On Linux, open a terminal and write “sudo lshw”.

Thanks again!

f00z · Sep 1, 2020

Same behavior here.

System:
Arch Linux 64-bit. AMD FX 8350. NVIDIA GTX 970. 32GB RAM. SSD for game. i3wm desktop.

Mumrikus · Sep 1, 2020

I have the same issue.

System:
Kubuntu 64 bit (KDE), AMD 4800u (integrated graphics), 16GB ram, SSD.

Including the ishw.

Cederstronk · Sep 1, 2020

Hey,

Thanks for the attached ishw. Could you please attach a save as well and we will try to reproduce this on our end.

f00z · Sep 1, 2020

Thanks, added to my post.

PS:
.ck3 is not yet a whitelisted extension

f00z · Sep 1, 2020

Also, the stuttering happens in main menu as well, so doesn't appear to be limited to in-game

Cederstronk · Sep 1, 2020

Hey all,

Thanks a lot for your assistance with providing us with the files and so on. We're currently investigating this on our side!

Mumrikus · Sep 1, 2020

Cederstronk said:
Hey,

Thanks for the attached ishw. Could you please attach a save as well and we will try to reproduce this on our end.

It does not really matter since it already happens in the main menu for me. Here is a video showing it. You can see it on the animations of the character as well as in the menu. Audio is not affected.

I also have no issues in windows with the same hardware.
View attachment 615408

Euphorya · Sep 1, 2020

The same thing is happening for me. On the main menu and in game. I have the latest AMD drivers. I also tried running with Game Mode, which doesn't seem to make a difference.

Arch Linux
AMD Ryzen 5 2600
Radeon 5700 xt
16GB RAM
Gnome Desktop Environment

I've included my lshw output.

headless_cyborg · Sep 1, 2020

Also attaching my LSHW. Exactly the same others mentioned - happens in the menu as well.

Arch Linux
i5 8300H, GTX 1660 Ti
24GB RAM
GNOME

It's a laptop with Optimus and Nvidia Prime (NV always on) if that helps.

I've tried:

gamemode
windowed mode (btw this doesn't do anything)
different resolution (btw changing resolution also doesn't do anything)
enabling and disabling vsync
disabling second monitor
lowest and highest settings
verifying game data integrity via Steam and restarting Steam

Xerxes8 · Sep 2, 2020

Might as well add my lshw too, same things happening as everyone else.

Gentoo
Ryzen 5 1600
Radeon RX 580
16 GB of ram
i3-gaps wm

Chairman Noob · Sep 2, 2020

Oddly it works for me on Arch with a Ryzen 7 2700, Radeon RX 580, 16 GB of RAM and Cinnamon. Had a single weird crash that may have been related to a Steam update, otherwise no obvious problems.

xenobrain · Sep 2, 2020

I've tried a few things (Arch Linux):
Kernels:
Zen kernel -- no difference
LTS kernel -- freezes the game in the main menu

Window Managers:
Other window managers including SteamOS Big Picture compositor

Steam:
Installed via Flatpak --no effect
Installed Native -- current setup
Force Steam Linux Runtime -- game will not launch

f00z · Sep 2, 2020

Attached video of issue in main menu (same in-game)

salted-fry · Sep 2, 2020

Same problem, but I was bored and did some more advanced debugging (decompressing after work).
First off: the stuttering seems to happen for me, pretty consistently, about once per three seconds.
Second: I hooked up strace and the problem seems to correlate with ck3 doing some kind of full-scan of /dev/input; this happens about once every three seconds, takes just over one second, and no other system calls are made until it completes.
I'm pasting an abbreviated copy of what I'm seeing here:

Code:

17:35:17.606 openat(AT_FDCWD, "/dev/input", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 116
17:35:17.607 fstat(116, {st_mode=S_IFDIR|0755, st_size=620, ...}) = 0           
17:35:17.607 getdents64(116, 0x55a5e2a2ac10 /* 31 entries */, 32768) = 968     
17:35:17.607 stat("/dev/input/event21", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x55), ...}) = 0
17:35:17.607 openat(AT_FDCWD, "/dev/input/event21", O_RDONLY) = 163             
17:35:17.607 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_MSC, EV_REP]) = 8 
17:35:17.607 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_ESC, KEY_1, KEY_2, KEY_3, ...]) = 96
17:35:17.607 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ 0 ]) = 8                       
17:35:17.607 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_MSC, EV_REP]) = 8 
17:35:17.607 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_ESC, KEY_1, KEY_2, KEY_3, ...]) = 96
17:35:17.608 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ 0 ]) = 8                       
17:35:17.608 close(163)                 = 0                                     
17:35:17.622 stat("/dev/input/event20", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x54), ...}) = 0
17:35:17.622 openat(AT_FDCWD, "/dev/input/event20", O_RDONLY) = 163             
17:35:17.622 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_REL, EV_ABS, ...]) = 8
17:35:17.622 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_ESC, KEY_ENTER, KEY_KPMINUS, KEY_KPPLUS, ...]) = 96
17:35:17.622 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ABS_VOLUME]) = 8                 
17:35:17.623 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_REL, EV_ABS, ...]) = 8
17:35:17.623 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_ESC, KEY_ENTER, KEY_KPMINUS, KEY_KPPLUS, ...]) = 96
17:35:17.623 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ABS_VOLUME]) = 8                 
17:35:17.623 close(163)                 = 0                                     

[... cut for brevity ...]

17:35:18.582 stat("/dev/input/event1", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x41), ...}) = 0
17:35:18.582 openat(AT_FDCWD, "/dev/input/event1", O_RDONLY) = 163             
17:35:18.582 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY]) = 8                 
17:35:18.582 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_POWER]) = 96               
17:35:18.582 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ 0 ]) = 8                       
17:35:18.582 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY]) = 8                 
17:35:18.582 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_POWER]) = 96               
17:35:18.583 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ 0 ]) = 8                       
17:35:18.583 close(163)                 = 0                                     
17:35:18.603 stat("/dev/input/event0", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x40), ...}) = 0
17:35:18.603 openat(AT_FDCWD, "/dev/input/event0", O_RDONLY) = 163             
17:35:18.603 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY]) = 8                 
17:35:18.603 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_POWER]) = 96               
17:35:18.604 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ 0 ]) = 8                       
17:35:18.604 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY]) = 8                 
17:35:18.604 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_POWER]) = 96               
17:35:18.604 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ 0 ]) = 8                       
17:35:18.604 close(163)                 = 0                                     
17:35:18.649 getdents64(116, 0x55a5e2a2ac10 /* 0 entries */, 32768) = 0         
17:35:18.649 close(116)                 = 0

Running on Arch Linux, FX 8350, GTX 1080ti, 32GB RAM.
If my theory is correct that this is an issue to do with scanning /dev/input, then note also that ls /dev/input/event* | wc -l shows 25 devices on my machine.

f00z · Sep 2, 2020

salted-fry said:

Same problem, but I was bored and did some more advanced debugging (decompressing after work).
First off: the stuttering seems to happen for me, pretty consistently, about once per three seconds.
Second: I hooked up strace and the problem seems to correlate with ck3 doing some kind of full-scan of /dev/input; this happens about once every three seconds, takes just over one second, and no other system calls are made until it completes.
I'm pasting an abbreviated copy of what I'm seeing here:

Code:

17:35:17.606 openat(AT_FDCWD, "/dev/input", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 116
17:35:17.607 fstat(116, {st_mode=S_IFDIR|0755, st_size=620, ...}) = 0        
17:35:17.607 getdents64(116, 0x55a5e2a2ac10 /* 31 entries */, 32768) = 968  
17:35:17.607 stat("/dev/input/event21", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x55), ...}) = 0
17:35:17.607 openat(AT_FDCWD, "/dev/input/event21", O_RDONLY) = 163          
17:35:17.607 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_MSC, EV_REP]) = 8
17:35:17.607 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_ESC, KEY_1, KEY_2, KEY_3, ...]) = 96
17:35:17.607 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ 0 ]) = 8                    
17:35:17.607 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_MSC, EV_REP]) = 8
17:35:17.607 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_ESC, KEY_1, KEY_2, KEY_3, ...]) = 96
17:35:17.608 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ 0 ]) = 8                    
17:35:17.608 close(163)                 = 0                                  
17:35:17.622 stat("/dev/input/event20", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x54), ...}) = 0
17:35:17.622 openat(AT_FDCWD, "/dev/input/event20", O_RDONLY) = 163          
17:35:17.622 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_REL, EV_ABS, ...]) = 8
17:35:17.622 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_ESC, KEY_ENTER, KEY_KPMINUS, KEY_KPPLUS, ...]) = 96
17:35:17.622 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ABS_VOLUME]) = 8              
17:35:17.623 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_REL, EV_ABS, ...]) = 8
17:35:17.623 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_ESC, KEY_ENTER, KEY_KPMINUS, KEY_KPPLUS, ...]) = 96
17:35:17.623 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ABS_VOLUME]) = 8              
17:35:17.623 close(163)                 = 0                                  

[... cut for brevity ...]

17:35:18.582 stat("/dev/input/event1", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x41), ...}) = 0
17:35:18.582 openat(AT_FDCWD, "/dev/input/event1", O_RDONLY) = 163          
17:35:18.582 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY]) = 8              
17:35:18.582 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_POWER]) = 96            
17:35:18.582 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ 0 ]) = 8                    
17:35:18.582 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY]) = 8              
17:35:18.582 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_POWER]) = 96            
17:35:18.583 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ 0 ]) = 8                    
17:35:18.583 close(163)                 = 0                                  
17:35:18.603 stat("/dev/input/event0", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x40), ...}) = 0
17:35:18.603 openat(AT_FDCWD, "/dev/input/event0", O_RDONLY) = 163          
17:35:18.603 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY]) = 8              
17:35:18.603 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_POWER]) = 96            
17:35:18.604 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ 0 ]) = 8                    
17:35:18.604 ioctl(163, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY]) = 8              
17:35:18.604 ioctl(163, EVIOCGBIT(EV_KEY, 96), [KEY_POWER]) = 96            
17:35:18.604 ioctl(163, EVIOCGBIT(EV_ABS, 8), [ 0 ]) = 8                    
17:35:18.604 close(163)                 = 0                                  
17:35:18.649 getdents64(116, 0x55a5e2a2ac10 /* 0 entries */, 32768) = 0      
17:35:18.649 close(116)                 = 0

Running on Arch Linux, FX 8350, GTX 1080ti, 32GB RAM.
If my theory is correct that this is an issue to do with scanning /dev/input, then note also that ls /dev/input/event* | wc -l shows 25 devices on my machine.

Does your issue resemble the recording I just posted? Just curious as am about to be post-work decompressing too and might go down this rabbit hole

EDIT: 28 event* devices listed on my side

salted-fry · Sep 2, 2020

f00z said:
Does your issue resemble the recording I just posted? Just curious as am about to be post-work decompressing too and might go down this rabbit hole

EDIT: 28 event* devices listed on my side

Looks about the same, yeah.

salted-fry · Sep 2, 2020

OK, so if you run sudo strace -p "$(pidof ck3)" 2>&1 | grep '/dev/input' in a terminal on the side, at least on my machine whatever it's doing to /dev/input is happening at exactly the same time as ck3 freezes.

f00z · Sep 2, 2020

salted-fry said:
OK, so if you run sudo strace -p "$(pidof ck3)" 2>&1 | grep '/dev/input' in a terminal on the side, at least on my machine whatever it's doing to /dev/input is happening at exactly the same time as ck3 freezes.

Thanks a ton for doing the strace! Confirmed I am seeing the exact same behavior.

Below are the syscalls while it's happening on my end. Note I do not have 28-31 on /dev/input/event*. Also, EVIOCGBIT returns the features available for each device. Strange to me it would need to be done so often.

Code:

openat(AT_FDCWD, "/dev/input", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 45
fstat(45, {st_mode=S_IFDIR|0755, st_size=700, ...}) = 0
getdents64(45, 0x564c4c879120 /* 35 entries */, 32768) = 1096
stat("/dev/input/event10", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x4a), ...}) = 0
openat(AT_FDCWD, "/dev/input/event10", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_MSC, EV_LED, ...]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [KEY_ESC, KEY_1, KEY_2, KEY_3, ...]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event9", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x49), ...}) = 0
openat(AT_FDCWD, "/dev/input/event9", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_REL, EV_ABS, ...]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [KEY_ESC, KEY_ENTER, KEY_KPMINUS, KEY_KPPLUS, ...]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ABS_VOLUME]) = 8
close(46)                               = 0
stat("/dev/input/event8", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x48), ...}) = 0
openat(AT_FDCWD, "/dev/input/event8", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_MSC]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [KEY_POWER, KEY_SLEEP, KEY_WAKEUP]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event7", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x47), ...}) = 0
openat(AT_FDCWD, "/dev/input/event7", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_REL, EV_MSC]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [BTN_LEFT, BTN_RIGHT, BTN_MIDDLE, BTN_SIDE, ...]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event4", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x44), ...}) = 0
openat(AT_FDCWD, "/dev/input/event4", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_MSC, EV_LED, ...]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [KEY_ESC, KEY_1, KEY_2, KEY_3, ...]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event27", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x5b), ...}) = 0
openat(AT_FDCWD, "/dev/input/event27", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event26", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x5a), ...}) = 0
openat(AT_FDCWD, "/dev/input/event26", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event25", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x59), ...}) = 0
openat(AT_FDCWD, "/dev/input/event25", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event24", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x58), ...}) = 0
openat(AT_FDCWD, "/dev/input/event24", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event23", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x57), ...}) = 0
openat(AT_FDCWD, "/dev/input/event23", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event22", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x56), ...}) = 0
openat(AT_FDCWD, "/dev/input/event22", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event21", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x55), ...}) = 0
openat(AT_FDCWD, "/dev/input/event21", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event20", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x54), ...}) = 0
openat(AT_FDCWD, "/dev/input/event20", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event19", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x53), ...}) = 0
openat(AT_FDCWD, "/dev/input/event19", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event18", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x52), ...}) = 0
openat(AT_FDCWD, "/dev/input/event18", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event17", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x51), ...}) = 0
openat(AT_FDCWD, "/dev/input/event17", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event16", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x50), ...}) = 0
openat(AT_FDCWD, "/dev/input/event16", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event15", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x4f), ...}) = 0
openat(AT_FDCWD, "/dev/input/event15", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event14", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x4e), ...}) = 0
openat(AT_FDCWD, "/dev/input/event14", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event13", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x4d), ...}) = 0
openat(AT_FDCWD, "/dev/input/event13", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SW]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event12", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x4c), ...}) = 0
openat(AT_FDCWD, "/dev/input/event12", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_SND]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [ 0 ]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event11", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x4b), ...}) = 0
openat(AT_FDCWD, "/dev/input/event11", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_ABS, EV_MSC]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [KEY_MUTE, KEY_VOLUMEDOWN, KEY_VOLUMEUP, KEY_NEXTSONG, ...]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ABS_MISC]) = 8
close(46)                               = 0
stat("/dev/input/event6", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x46), ...}) = 0
openat(AT_FDCWD, "/dev/input/event6", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_MSC]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [KEY_POWER, KEY_SLEEP, KEY_WAKEUP]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event5", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x45), ...}) = 0
openat(AT_FDCWD, "/dev/input/event5", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_REL, EV_ABS, ...]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [KEY_ESC, KEY_ENTER, KEY_KPMINUS, KEY_KPPLUS, ...]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ABS_VOLUME]) = 8
close(46)                               = 0
stat("/dev/input/event3", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x43), ...}) = 0
openat(AT_FDCWD, "/dev/input/event3", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_MSC, EV_REP]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [KEY_ESC, KEY_1, KEY_2, KEY_3, ...]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event2", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x42), ...}) = 0
openat(AT_FDCWD, "/dev/input/event2", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY, EV_REL, EV_MSC]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [BTN_LEFT, BTN_RIGHT, BTN_MIDDLE, BTN_SIDE, ...]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event1", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x41), ...}) = 0
openat(AT_FDCWD, "/dev/input/event1", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [KEY_POWER]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
stat("/dev/input/event0", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x40), ...}) = 0
openat(AT_FDCWD, "/dev/input/event0", O_RDONLY) = 46
ioctl(46, EVIOCGBIT(0, 8), [EV_SYN, EV_KEY]) = 8
ioctl(46, EVIOCGBIT(EV_KEY, 96), [KEY_POWER]) = 96
ioctl(46, EVIOCGBIT(EV_ABS, 8), [ 0 ])  = 8
close(46)                               = 0
getdents64(45, 0x564c4c879120 /* 0 entries */, 32768) = 0
close(45)                               = 0
stat("/dev/input/event0", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x40), ...}) = 0
openat(AT_FDCWD, "/dev/input/event0", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event1", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x41), ...}) = 0
openat(AT_FDCWD, "/dev/input/event1", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event2", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x42), ...}) = 0
openat(AT_FDCWD, "/dev/input/event2", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event3", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x43), ...}) = 0
openat(AT_FDCWD, "/dev/input/event3", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event4", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x44), ...}) = 0
openat(AT_FDCWD, "/dev/input/event4", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event5", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x45), ...}) = 0
openat(AT_FDCWD, "/dev/input/event5", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event6", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x46), ...}) = 0
openat(AT_FDCWD, "/dev/input/event6", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event7", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x47), ...}) = 0
openat(AT_FDCWD, "/dev/input/event7", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event8", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x48), ...}) = 0
openat(AT_FDCWD, "/dev/input/event8", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event9", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x49), ...}) = 0
openat(AT_FDCWD, "/dev/input/event9", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event10", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x4a), ...}) = 0
openat(AT_FDCWD, "/dev/input/event10", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event11", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x4b), ...}) = 0
openat(AT_FDCWD, "/dev/input/event11", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event12", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x4c), ...}) = 0
openat(AT_FDCWD, "/dev/input/event12", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event13", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x4d), ...}) = 0
openat(AT_FDCWD, "/dev/input/event13", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event14", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x4e), ...}) = 0
openat(AT_FDCWD, "/dev/input/event14", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event15", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x4f), ...}) = 0
openat(AT_FDCWD, "/dev/input/event15", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event16", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x50), ...}) = 0
openat(AT_FDCWD, "/dev/input/event16", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event17", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x51), ...}) = 0
openat(AT_FDCWD, "/dev/input/event17", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event18", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x52), ...}) = 0
openat(AT_FDCWD, "/dev/input/event18", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event19", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x53), ...}) = 0
openat(AT_FDCWD, "/dev/input/event19", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event20", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x54), ...}) = 0
openat(AT_FDCWD, "/dev/input/event20", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event21", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x55), ...}) = 0
openat(AT_FDCWD, "/dev/input/event21", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event22", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x56), ...}) = 0
openat(AT_FDCWD, "/dev/input/event22", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event23", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x57), ...}) = 0
openat(AT_FDCWD, "/dev/input/event23", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event24", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x58), ...}) = 0
openat(AT_FDCWD, "/dev/input/event24", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event25", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x59), ...}) = 0
openat(AT_FDCWD, "/dev/input/event25", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event26", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x5a), ...}) = 0
openat(AT_FDCWD, "/dev/input/event26", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event27", {st_mode=S_IFCHR|0660, st_rdev=makedev(0xd, 0x5b), ...}) = 0
openat(AT_FDCWD, "/dev/input/event27", O_RDWR) = 45
ioctl(45, EVIOCGBIT(EV_FF, 128), [ 0 ]) = 16
close(45)                               = 0
stat("/dev/input/event28", 0x7ffee1403ea0) = -1 ENOENT (No such file or directory)
stat("/dev/input/event29", 0x7ffee1403ea0) = -1 ENOENT (No such file or directory)
stat("/dev/input/event30", 0x7ffee1403ea0) = -1 ENOENT (No such file or directory)
stat("/dev/input/event31", 0x7ffee1403ea0) = -1 ENOENT (No such file or directory)

CK III - Stutting performance

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