Interesting Memory Issue

[DarkArcana]

I was playing Cities: Skylines for a few hours. Had it in Windowed mode. Steam overlay was turned off. Paused it and left it for maybe an hour and came back, it was a little slow. I looked at my memory usage and saw that I was using all of my RAM and some swap space. I have swap set really low (2GB) because I almost never need it with 16GB of ram. So I figured I should save and shut down the game to clear any memory leak there might have been. After shutting it down, the memory was still being used. I ran `ps aux | grep steam` and also for cities.x64 (the linux binary). All of the processes for the game were still running even though I shut it down. Ok, so I killed the processes, but instead of them dying (sigterm), the processes for the game turned into zombie processes. I made a post on Reddit and was sent this way. In the post, I linked this picture (http://gyazo.com/adc345763660a85426647b2b4f321e8c) of the top program. HTOP wouldn't even work :|. This is after trying to kill the processes. You can see they are still using a LOT of memory. In the end, I had to completely restart my system to regain the resources.

My specs: - AMD FX-8350 - 16GB DDR3 1800 ram - Nvidia GeForce 650 Ti - Samsung 850 Pro SSD - ArchLinux (kde kf5 if the de is important). Nvidia 340.76-2 driver.

Let me know if you need any more specific information.

 

[DarkArcana]

I should have included the devinfo.txt: http://pastebin.com/MVFA4S8d

 

[The OBroin]

Memory leak

Looks like I may be having a similar memory leak issue on my system, only a bit worse since mine has less memory to begin with (8GB instead of 16GB). I am experiencing system lock-ups and hard-drive thrashing when loading games, exiting the game, and even when hitting population milestones. The game locks up for a few minutes every time before showing the new population milestone screen.

According to htop, this is the system usage just while in the main menu:



This is the system usage while I have a city loaded (population of ~3800):



And this is the system usage after I have exited the game (I had to use "killall -9 Cities.x64" after this to get rid of all the left-over threads using up my RAM):



I'm also on Arch Linux and using the NVidia binary driver, but in my case I'm on a laptop, and using bumblebee and primusrun to make use of my NVidia card.

This is the contents of my devinfo.txt:

Machine ID: 408c057dca344ded92eab099587c2b36
Model: PC
OS: Linux 3.18 unknown 64bit
Language: English
CPU: Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz (4 core(s))
System Memory: 7876
Gfx Device: GeForce GT 630M/PCIe/SSE2
Gfx Version: OpenGL 4.5 [4.5.0 NVIDIA 346.47]
Gfx Memory: 1024
Gfx Shader Model: 30
Game Version: 1.0.5

 

[TheWiredWorld]

Posted the same issue as a new thread myself. Can confirm. Particularly bad for streaming. Open Broadcast Software basically bottoms out after about 10 minute and my stream drops to about 1 FPS.

I checked Processes tab and, sure enough, it's like triple the memory usage as anything I've ever seen.