Hi there.
I started playing TERA and when I play, after about an hour or so, i can feel the game gradually lag more and more. If I keep playing, my laptop will lag more and more until the laptop becomes unusable (to explain how much I lag : I got disconnected from Discord due to my PC lagging).
I got a P775-DM3, with a 6700K, and a GTX 1080.
I checked temps, and I really don't think they are the problem here. They hover around 80°C, but if I turn down graphical settings to the absolute minimum (ie temps go down), the lag doesn't go away, or doesn't get any better. It stays exactly the same. Until I close the game.
I tried playing without Throttlestop, but to no avail.
At this point, you might think this is TERA related, but I had a similar problem a few month ago, where if I left my laptop on for a while, the same kind of lag would happen, and I had to restart my laptop. I fixed it by formatting/reinstalling everything.
However since I reinstalled windows recently, I don't think this solution will help.
Since I don't know how I should fix this, I'm currently trying a few random ideas I can find on the internet until I find one that works.
I have one final, interesting piece of information however. I figured that since I didn't know what the problem was, I should probably try to get more info. And the problem was most likely CPU related. So i ran the ressource monitor, and I took 3 screenshots : one when I launched TERA, one a while later, and one once the lag started to really kick in.
https://imgur.com/a/xGlSO
It seems CPU0 slowly builds up CPU usage over 1 hour or so, and when it starts nearing 100%, the laptop as whole become unusable. This seems weird to me, because even if the game was overloading one core, I don't see why the whole laptop would grind to a halt.
I'll need to run a few more tests (ex : check CPU usage between mid and ultra low setting when I start the game, and once the game starts lagging, and maybe check for throttling too).
But if anybody has any idea for solutions or test to run, you're welcome.
Have you tried different GPU option? Full Screen VS Windowed Full Screen, VSYN ON or OFF, G-SYNC ON or OFF (If you have it).
That´s a monster CPU, and the game seems to be heavy on one thread and almost no usage on other threads, this means that if indeed it´s a CPU resources issues then the game is not well designed. There are plenty of cases where games cant use Multi-core, that´s not a hardware problem, but a poor game design (usually console ports).
Then, after searching for a while, I found this : https://www.reddit.com/r/TeraOnline/comments/5w0lmy/something_that_might_help_possible_memory_leak_fix/
I unplugged my controller while looking at CPU usage on CPU0.
It went from 90% to 50% instantly.
Problem most likely solved ?
Edit : Okay so the CPU usage went down because TERA crashed. Kind of wish I could delete this post now. But something happened so I guess it's still a good sign ?
Disconnecting the controller did solve the problem. Played for a few hours without any problem.
Case solved.
Glad it is solved
Have fun!