[0.12.30] [Rseding91] Stacks of Armors in chests causes lag

[Supercheese]

When you have multiple chests full of Armor-type items, the game begins to lag noticeably.

Steps to reproduce:

• Load any save (tested both vanilla and modded) where you have several chests
• Activate the debug "show_time_used_percent" option and make a baseline measurement for comparison, paying special attention to the "Electric network" portion
• Either insert a bunch of armor-type items into the chests manually, or use a command like

  Code: Select all

  /c game.local_player.selected.insert{name="heavy-armor", count = 1000}

• Do this for multiple chests, and check the Electric network time_used_percent again. It should have increased dramatically

Evidently something behind the scenes is flipping out when multiple stacks of armors are stored in chests. I tested with basic armor, heavy armor, and power armor, and they all caused lag.

Some illustrative screenshots -- note the "Electric network" numbers at bottom left increasing dramatically:

Baseline

Baseline.jpg (1.86 MiB) Viewed 992 times

Uh oh this is getting bad

UhOh.jpg (1.94 MiB) Viewed 992 times

Jeez what is going on here

Yikes.jpg (1.95 MiB) Viewed 992 times

Note that while I still maintained 60 UPS through this particular test, in some of my saved games the Electric network time_used_percent has reached as high as 21, which slowed me down to ~20 UPS and effectively killed performance.

[Klonan]

Thanks for the report,

This will be fixed/optimized in 0.13
As large parts of the electric network code have changed