0001462: Ice thawing triggers massive lag - Dwarf Fortress Bug Tracker

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Date Submitted

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0001462

Dwarf Fortress

Dwarf Mode -- Flows

public

2010-04-23 12:16

2011-03-30 13:37

Reporter

Kefka

Assigned To

Footkerchief

Priority

normal

Severity

major

Reproducibility

have not tried

Status

resolved

Resolution

duplicate

Platform

Desktop

Windows XP

OS Version

SP 2

Product Version

0.31.03

Target Version

Fixed in Version

Summary

0001462: Ice thawing triggers massive lag

Description

So far had this happen only once, might be a stroke of bad luck. Anyway, I had a fort with a large (artificial) body of water that was being filled from the nearby brook. Winter came in and froze the partially-filled lake. Many tiles were just 2/7 or even 1/7 so I expected extra water when thawing happened. However when summer came and the ice thawed, the game froze for a few seconds and then resumed with uncommonly massive lag. My FPS was down from 80 to probably 30 or even less.
I don't know if all the sudden extra water might be to blame, and saving/reloading doesn't seem to make the lag go away.
A detail is that the lake had ramps on its sides, which seem to have been deleted by the buggy ice. I don't know if that might be related.

Steps To Reproduce

Have a partially filled lake with ramps on the sides freeze and thaw.

Tags

ice

Attached Files

Relationships

duplicate of

0001899

resolved

Toady One

Game locks up for 30 min during seasonal temperature shift

Notes
(0004753) Footkerchief (manager) 2010-04-23 12:24 edited on: 2010-04-23 12:24	Do you still have the laggy save? If so, it would be helpful to upload it to http://dffd.wimbli.com/ [^] Are you getting any pathfinding problems?

(0005200) king doom (reporter) 2010-04-26 16:17	I've had several forts where rivers freeze in winter, there is a noticable lock when they thaw as the game calculates water. The ramps thing I actually just submitted a report about, freezing sems to detach them from one z level. In my case it was at the top.

Issue History
Date Modified	Username	Field	Change
2010-04-23 12:16	Kefka	New Issue
2010-04-23 12:24	Footkerchief	Note Added: 0004753
2010-04-23 12:24	Footkerchief	Note Edited: 0004753	View Revisions
2010-04-23 15:52	Lac	Tag Attached: ice
2010-04-26 16:17	king doom	Note Added: 0005200
2011-03-30 13:37	Footkerchief	Relationship added	duplicate of 0001899
2011-03-30 13:37	Footkerchief	Status	new => resolved
2011-03-30 13:37	Footkerchief	Resolution	open => duplicate
2011-03-30 13:37	Footkerchief	Assigned To	=> Footkerchief