0003164: Severe lag during sieges due to buildingdestroyer pathfinding

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Project

Category

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Date Submitted

Last Update

0003164

Dwarf Fortress

Pathfinding

public

2010-09-06 09:42

2014-08-08 16:25

Reporter

Quietust

Assigned To

Footkerchief

Priority

normal

Severity

minor

Reproducibility

have not tried

Status

confirmed

Resolution

open

Platform

OS Version

Product Version

0.31.12

Target Version

Fixed in Version

Summary

0003164: Severe lag during sieges due to buildingdestroyer pathfinding

Description

During my fortress's most recent siege, the pathfinding from the numerous trolls managed to drag my framerate from its usual 25fps down to 4fps. In previous sieges where the trolls were the first to reach my fortress, the framerate increased significantly once they had been killed or captured.

If I seal the entrance to my fortress (using a drawbridge that lowers on top of a downward ramp, the lag similarly subsides once the trolls stop trying to path into my fortress.

Early sieges (which did not yet include any trolls) did not cause any significant lag.

Tags

BUILDINGDESTROYER, pathfinding, siege

Attached Files

Relationships

related to	0001340	new		Walling off HFS kills FPS
related to	0010540	confirmed	Loci	Closed bridge impact vastly the fps in this siege

Notes
(0012497) behbehr (reporter) 2010-09-08 03:14	Can confirm this. Every time my fortress is under sieged by trolls, my framerate goes from 20-25 down to 4-5 until they've been killed or they run away. This can be reproduced every time a siege with trolls appear.

(0012560) hyndis (reporter) 2010-09-10 08:56	Old bug, happened with the earlier versions like 40D, and even the version previous to that. A single building destroyer doesn't make a very large FPS hit, but many of them, like armies of trolls, will kill your FPS every time.

Issue History
Date Modified	Username	Field	Change
2010-09-06 09:42	Quietust	New Issue
2010-09-08 03:14	behbehr	Note Added: 0012497
2010-09-08 03:48	behbehr	Issue Monitored: behbehr
2010-09-08 04:32	Kennel	Tag Attached: pathfinding
2010-09-08 04:32	Kennel	Tag Attached: siege
2010-09-10 08:56	hyndis	Note Added: 0012560
2013-09-22 17:35	Footkerchief	Relationship added	related to 0001340
2013-09-22 17:35	Footkerchief	Tag Attached: BUILDINGDESTROYER
2014-08-08 16:25	Footkerchief	Assigned To	=> Footkerchief
2014-08-08 16:25	Footkerchief	Status	new => confirmed
2018-01-21 14:59	Detros	Relationship added	related to 0010540
2018-04-25 16:11	Huntthetroll	Issue Monitored: Huntthetroll