[0.10.9] level.dat grows in savegame

[HeilTec]

When playing with hard settings (big and rich biters nests)

settings used

Screenshot from Fishsandwich's Hard-Mode series

01-Fish.HardMode.jpg (78.9 KiB) Viewed 1601 times

using a seed like 1337 with a great expanse of water for the biters to navigate,

map

overview

map.jpg (63.4 KiB) Viewed 1601 times

the savegame grows rather big causing great lag during autosave.

Somehow the game manages to reduce the size the second time a manual save was performed.

6 autosaves + 2 manual saves, + readme + Fish.HardMode + map

https://www.dropbox.com/s/dulrwt6j4ji9d ... w.zip?dl=0

readme.txt

This series of autosaves and regular saves shows how the map grows over time.
The interesting last save shows that size can be reduced. The game does that somehow.

Game created and played using Factorio 0.10.9 (Build 10689, win64)

System:
64 bit Win 7 Home Premium
Pent Dual-Core CPU T4300 @ 2.10GHz
4 GB RAM

[kovarex]

Hello, I tested the save 7_autosave1, and when I loaded it in 0.11.6 and saved it the zip went from 80Mb to 16Mb, so I guess it is related to bug (probably too hungry pathfinder caching) solved.

[n9103]

Something to do with biters trying to pathfind from the far side of the crescent lake when pollution extends that far?
Given biters' reluctance to pathfind around any wall wider than a few tiles in either direction, this seemed like an eventual problem to me for awhile now.

[HeilTec]

...biters trying to pathfind from the far side of the crescent lake when pollution extends that far ...

Yes - that must be the case - I think.