[X64_Test] [Windows 11] [Team Fortress 2] First person viewmodel and entity lag on empty servers

[anthonypollos]

Software Specifications

Exe Build Date: 2/28/24 9:49 PM UTC OS: Windows 11 Home OS build: 22621.3155

Hardware Specifications

CPU: 12th Gen Intel(R) Core(TM) i7-12700K, 3600 Mhz, 12 Core(s), 20 Logical Processor(s) GPU: NVIDIA GeForce RTX 4060 Ti RAM: 32 GB (2 x 16 GB) PRO Z690-A WIFI DDR4(MS-7D25)

Bug

Summary: When launching a Team Fortress 2 game, joining an empty community server under certain maps would trigger the first person viewmodel to run at a very low framerate. Additionally (for the most part), entities and projectiles would also be affected. Reproducibility: Happens every time Steps to reproduce:

1. Launch x64 Team Fortress 2
2. Join a community server running an official map with zero players and zero bots
3. Join a team and observe your first person weapon animations, projectiles, and entities lag

Maps it did occur on

• ctf_turbine
• pl_badwater
• ctf_landfall
• plr_hightower
• cp_gorge
• pl_enclosure_final

Maps it did NOT occur on

• tc_hydro
• cp_5gorge
• vsh_tinyrock
• koth_viaduct
• ctf_2fort
• mvm_ghosttown

Maps it DID occur on, but less intensively on

• mvm_decoy
• koth_harvest_event

pl_upward

Deserves its own section. Had a variety of strange things occur

• First person viewmodel lags
• Projectiles (rockets, stickies, grenade launcher, flare gun shots, baseballs, guillotine) do NOT lag when thrown/shot
• Entities in the map (such as the playload cart) did not lag
• Buildings (engineer sentry (all levels + mini), dispenser, and teleporter) and food items (sandvich, dalokohs bar, etc) DID lag

Other notes

• Does not affect the explosion vfx particles after a rocket or grenade explodes, just the moving entity itself
• Creating a local server did not cause these issues to occur
• Servers with players did not cause these issues to occur
• Servers with only bots on them did not cause these issues to occur
• Servers with a mix of players and bots on them did not cause these issues to occur
• Due to the small number of 64 bit servers being run at the moment, many of these were only tried on one server, but some were not, such as pl_badwater, pl_upward, ctf_2fort, and tc_hydro were all tested on multiple servers

[anthonypollos]

Small update, was on pl_upward again and tried setting my cl_interp to different values. at 1. The rocket projectile itself was lagging, and at 0, it was not. The first person viewmodel lag did occur either way though.