Large RAM usage when using Vulkan

[NotStirred]

• System information from steam
• Have you checked for system updates?: Yes
• Are you using the latest stable video driver available for your system? Yes (as of now nvidia 460.39)
• Have you verified the game files?: Yes

Please describe your issue in as much detail as possible:

Starting dota with -vulkan option it uses > 5GiB of ram on startup, with 7GiB peak after a couple of games Starting with -gl it uses around 1.6GiB with 3GiB peak after a couple of games

Steps for reproducing this issue:

1. add -vulkan option to dota
2. start dota

[Turmfalke2]

For me with vulkan just in the demo mode I get

7529M virtual, 3831M resident and 351M shared.

with opengl I am at:

5803M virtual, 2080M resident and 33M shared.

I have 32G of ram so it isn't issue for me, but it might be for low end systems.

[ghost]

Got around 6-7GB RAM usage as well, with FPS drops under 75 FPS with Nvidia GTX 1070. I don't mind the RAM usage really, just the bad performance.

[romulasry]

This is bad since VULKAN is the DEFAULT now. @kisak-valve

[romulasry]

Still getting this? Report it here: https://github.com/ValveSoftware/Dota-2-Vulkan/issues

[koreanfan]

I have vulkan memory leak, when dota eat all my ram, my pc crash, only hard reset. Tested on all linux distros and got vulkan memory leak.

[jmakip]

Latest vulkan version seem to take more than 16G of memory for me. Game crashes random times caused by process being reaped for system being out of memory.

dmesg after crash:

[24810.253404] Out of memory: Killed process 17365 (dota2) total-vm:18845912kB, anon-rss:14547288kB, file-rss:434200kB, shmem-rss:22220kB, UID:1000 pgtables:32252kB oom_score_adj:0

[24810.504613] oom_reaper: reaped process 17365 (dota2), now anon-rss:0kB, file-rss:442140kB, shmem-rss:22236kB

top in main menu:

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 19981 jarno 20 0 17,1g 13,0g 22256 S 32,0 83,5 1:16.11 dota2

-gl takes less memory but I get 5fps in main menu. 120fps with -vulkan