0003651: Ghost appearing/disappearing causes a massive slowdown

(0013954)
takaratiki (reporter)
2010-11-17 07:47

Correct. Suffering massive delays as the ghost blinks in and out. This is on the Linux version with a world rendered on 31.18.

(0014064)
fflaguna2 (reporter)
2010-11-20 14:42
edited on: 2010-11-20 14:42

Same here on Windows. It's game-breaking until you memorialize the ghost, which takes forever due to the massive slowdowns.

For the record, the ghost that caused this bug was a caravan merchant who died.

(0014132)
Cruxador (reporter)
2010-11-21 21:17
edited on: 2010-12-20 01:14

It's not gamebreaking for me, though it's annoying. I've got a pretty good computer, so that could account for the difference, but I just get a pause of about 30 seconds to a minute. I have lots of ghosts going on, since I've had gratuitous amounts of death and am not burying or memorializing anyone.

It's still an important bug, though. This is probably the most annoying bug I've experienced.

EDIT: Okay, different embark, and it's gamebreaking for me now.

(0014163)
nordak (reporter)
2010-11-22 23:25

I'm not taking a hit in fps or a pause. Windows and good system with i7 processor.

(0014360)
nosesquid (reporter)
2010-12-02 05:30

It's happening in Mac 31.18 too. Could this be connected to bug 0003708? I've had plenty of ghosts before (nobody from before the 4th migrant wave is still alive) but no problems until a "nameless" ghost showed up.

(0014632)
Kolbur (reporter)
2010-12-19 14:44

I have the same problem but it's very strange. I have ghosts on my map since the very beginning of my fortress when one miner got encased in ice while trying to pierce an aquifer. I've intentionally not buried or memorialized anyone to get ghosts and it was no problem until now (more than 3 years into the game now). Suddenly the breaks started (I have like 4 ghosts now) and got longer very quickly. Unfortunately it's gamebreaking for me too. Cpu usage goes through the roof and the game freezes up to a minute. The actual fps between the breaks seems to be ok. But the freezes seems to come every other step now. :(

(0014666)
Dwarfu (manager)
2010-12-20 21:17

CapnRis also has this save from 0003815 that seems to be the same issue.

http://dffd.wimbli.com/file.php?id=3558 [^]

(0014891)
Kogut (reporter)
2011-01-16 21:38

My bet: it is caused by pathfinder.
Ghost can move in all directions so
(a) it will path in (2*n)^3 cube to travel n tiles
(b) it is using useless for him cached data
(c) maybe part of ghost is not pathfinding, so it is why only part is killing FPS.

Solution - just move ghost without pathfinding.
====
And it just happened for me.
====
And it wasn't nameless ghost.

(0014914)
monk12 (reporter)
2011-01-20 16:16

I can report that it doesn't appear to happen every time I have a ghost. In some instances I've had a ghost quietly haunting the well he drowned in, and in others I've experienced incredibly erratic FPS issues. I believe it is related to ghosts pathing through unexplored underground areas. The reason I believe this is because the ghost was not on the unit list during the largest instances of lag, but by zooming in on it via the relationships menu the cursor centered on a point that could only be Hell.

(0014965)
Vercingetorix (reporter)
2011-02-01 21:56

Same problem confirmed here. My game started to lag for no apparent reason and there were no visible ghosts in the unit list. I ran DF reveal and I was able to find the two spirits and put them to rest. In my case they were in conventional unexplored layers.

Carving up two slabs now so things should be fine.

(0015275)
Lord Herman (reporter)
2011-02-19 02:41

I think I'm having the same problem. 0.31.19, windows. Game started pausing 1-3 seconds with increasing frequency ever since my first ghost appeared. Right now it runs for about a second, then pauses for two or three seconds, then runs for a second again. At some point it seems to hang completely, and I have to close DF via the task manager. During the pauses, the game window won't respond to alt-tabbing et cetera.

(0015524)
dravus (reporter)
2011-02-26 10:46

I just started getting the same issue

complete freezes for up to 30secs to 1 min at a time

had to forcefully close the process to get my system back from the game

(0015528)
DoctorZuber (reporter)
2011-02-26 14:49

On a side note, I hate the interface for engraving a slab. Here is a summary of my process.

1. units menu, find the offending ghost
2. remember/write down the ghost's name
3. open the craft workshop and engrave a slab
4. page through the MANY MANY MANY pages of names until you find the right one.

With my rather evolved fortress, I have several HUNDRED names to search through anytime I need to engrave a slab. Some of the names aren't even visible and simply say (engrave a slab) without any associated name.

It would be a HUGE timesaver if we could enter names to engrave with a partial alphabetical match like is used for ordering manangement tasks.

(0015930)
Footkerchief (manager)
2011-03-07 15:46

JimiD uploaded this save at 0004053:0015925: http://dffd.wimbli.com/file.php?id=3921 [^]

(0016129)
JimiD (reporter)
2011-03-11 14:53

Another save, this one with definite lag and ghost activity.

http://dffd.wimbli.com/file.php?id=3951 [^]

Ghost appears on the western edge of the map, at ground level, in the stream.

(0016213)
MaDeR Levap (reporter)
2011-03-13 15:12

Ghosts, as non-material being, should not need any pathfinding at all. Just make straight line from x1,y1,z1 to x2,y2,z2. Maybe in some cases game incorrectly uses pathfinder instead of simplest case?

(0016333)
Footkerchief (manager)
2011-03-17 09:01

gpmfuchs posted this save at 0004241: http://dffd.wimbli.com/file.php?id=3980 [^]

Issue History
Date Modified	Username	Field	Change
2010-11-17 00:09	Deon	New Issue
2010-11-17 07:47	takaratiki	Note Added: 0013954
2010-11-20 14:42	fflaguna2	Note Added: 0014064
2010-11-20 14:42	fflaguna2	Note Edited: 0014064	View Revisions
2010-11-21 21:09	Cruxador	Issue Monitored: Cruxador
2010-11-21 21:17	Cruxador	Note Added: 0014132
2010-11-22 23:25	nordak	Note Added: 0014163
2010-12-02 05:30	nosesquid	Note Added: 0014360
2010-12-02 07:46	Footkerchief	Category	Dwarf Mode -- Idle Behavior => Undeath
2010-12-19 14:44	Kolbur	Note Added: 0014632
2010-12-19 15:18	Dwarfu	Relationship added	related to 0003815
2010-12-20 01:14	Cruxador	Note Edited: 0014132	View Revisions
2010-12-20 21:15	Dwarfu	Relationship replaced	has duplicate 0003815
2010-12-20 21:15	Dwarfu	Issue Monitored: CapnRis
2010-12-20 21:17	Dwarfu	Note Added: 0014666
2010-12-20 21:18	Dwarfu	Tag Attached: Save Included
2010-12-20 21:18	Dwarfu	Tag Attached: Save Needs Testing
2011-01-16 21:38	Kogut	Note Added: 0014891
2011-01-20 16:16	monk12	Note Added: 0014914
2011-02-01 21:56	Vercingetorix	Note Added: 0014965
2011-02-02 14:04	mrchinchin25	Issue Monitored: mrchinchin25
2011-02-03 09:02	Dwarfu	Relationship added	has duplicate 0003916
2011-02-03 09:02	Dwarfu	Issue Monitored: Solra Bizna
2011-02-04 19:20	Logical2u	Relationship added	has duplicate 0003931
2011-02-19 02:41	Lord Herman	Note Added: 0015275
2011-02-19 02:42	Lord Herman	Issue Monitored: Lord Herman
2011-02-26 10:46	dravus	Note Added: 0015524
2011-02-26 14:49	DoctorZuber	Note Added: 0015528
2011-03-07 11:43	Footkerchief	Relationship added	related to 0004053
2011-03-07 15:46	Footkerchief	Note Added: 0015930
2011-03-09 00:39	Khym Chanur	Issue Monitored: Khym Chanur
2011-03-11 14:51	JimiD	Issue Monitored: JimiD
2011-03-11 14:53	JimiD	Note Added: 0016129
2011-03-13 15:12	MaDeR Levap	Note Added: 0016213
2011-03-13 22:05	Footkerchief	Sticky Issue	No => Yes
2011-03-16 12:06	Footkerchief	Relationship added	related to 0004207
2011-03-17 09:01	Footkerchief	Relationship added	has duplicate 0004241
2011-03-17 09:01	Footkerchief	Note Added: 0016333
2011-03-19 16:49	Toady One	Status	new => resolved
2011-03-19 16:49	Toady One	Fixed in Version	=> 0.31.22
2011-03-19 16:49	Toady One	Resolution	open => fixed
2011-03-19 16:49	Toady One	Assigned To	=> Toady One
2011-03-19 20:03	Khym Chanur	Issue End Monitor: Khym Chanur
2011-03-22 04:42	JimiD	Issue End Monitor: JimiD
2011-03-22 22:50	Footkerchief	Sticky Issue	Yes => No
2011-04-08 15:55	CapnRis	Issue End Monitor: CapnRis
2011-05-06 21:32	Cruxador	Issue End Monitor: Cruxador
2012-03-02 17:41	Dwarfu	Tag Detached: Save Needs Testing

Notes
(0013954) takaratiki (reporter) 2010-11-17 07:47	Correct. Suffering massive delays as the ghost blinks in and out. This is on the Linux version with a world rendered on 31.18.

(0014064) fflaguna2 (reporter) 2010-11-20 14:42 edited on: 2010-11-20 14:42	Same here on Windows. It's game-breaking until you memorialize the ghost, which takes forever due to the massive slowdowns. For the record, the ghost that caused this bug was a caravan merchant who died.

(0014132) Cruxador (reporter) 2010-11-21 21:17 edited on: 2010-12-20 01:14	It's not gamebreaking for me, though it's annoying. I've got a pretty good computer, so that could account for the difference, but I just get a pause of about 30 seconds to a minute. I have lots of ghosts going on, since I've had gratuitous amounts of death and am not burying or memorializing anyone. It's still an important bug, though. This is probably the most annoying bug I've experienced. EDIT: Okay, different embark, and it's gamebreaking for me now.

(0014163) nordak (reporter) 2010-11-22 23:25	I'm not taking a hit in fps or a pause. Windows and good system with i7 processor.

(0014360) nosesquid (reporter) 2010-12-02 05:30	It's happening in Mac 31.18 too. Could this be connected to bug 0003708? I've had plenty of ghosts before (nobody from before the 4th migrant wave is still alive) but no problems until a "nameless" ghost showed up.

(0014632) Kolbur (reporter) 2010-12-19 14:44	I have the same problem but it's very strange. I have ghosts on my map since the very beginning of my fortress when one miner got encased in ice while trying to pierce an aquifer. I've intentionally not buried or memorialized anyone to get ghosts and it was no problem until now (more than 3 years into the game now). Suddenly the breaks started (I have like 4 ghosts now) and got longer very quickly. Unfortunately it's gamebreaking for me too. Cpu usage goes through the roof and the game freezes up to a minute. The actual fps between the breaks seems to be ok. But the freezes seems to come every other step now. :(

(0014666) Dwarfu (manager) 2010-12-20 21:17	CapnRis also has this save from 0003815 that seems to be the same issue. http://dffd.wimbli.com/file.php?id=3558 [^]

(0014891) Kogut (reporter) 2011-01-16 21:38	My bet: it is caused by pathfinder. Ghost can move in all directions so (a) it will path in (2*n)^3 cube to travel n tiles (b) it is using useless for him cached data (c) maybe part of ghost is not pathfinding, so it is why only part is killing FPS. Solution - just move ghost without pathfinding. ==== And it just happened for me. ==== And it wasn't nameless ghost.

(0014914) monk12 (reporter) 2011-01-20 16:16	I can report that it doesn't appear to happen every time I have a ghost. In some instances I've had a ghost quietly haunting the well he drowned in, and in others I've experienced incredibly erratic FPS issues. I believe it is related to ghosts pathing through unexplored underground areas. The reason I believe this is because the ghost was not on the unit list during the largest instances of lag, but by zooming in on it via the relationships menu the cursor centered on a point that could only be Hell.

(0014965) Vercingetorix (reporter) 2011-02-01 21:56	Same problem confirmed here. My game started to lag for no apparent reason and there were no visible ghosts in the unit list. I ran DF reveal and I was able to find the two spirits and put them to rest. In my case they were in conventional unexplored layers. Carving up two slabs now so things should be fine.

(0015275) Lord Herman (reporter) 2011-02-19 02:41	I think I'm having the same problem. 0.31.19, windows. Game started pausing 1-3 seconds with increasing frequency ever since my first ghost appeared. Right now it runs for about a second, then pauses for two or three seconds, then runs for a second again. At some point it seems to hang completely, and I have to close DF via the task manager. During the pauses, the game window won't respond to alt-tabbing et cetera.

(0015524) dravus (reporter) 2011-02-26 10:46	I just started getting the same issue complete freezes for up to 30secs to 1 min at a time had to forcefully close the process to get my system back from the game

(0015528) DoctorZuber (reporter) 2011-02-26 14:49	On a side note, I hate the interface for engraving a slab. Here is a summary of my process. 1. units menu, find the offending ghost 2. remember/write down the ghost's name 3. open the craft workshop and engrave a slab 4. page through the MANY MANY MANY pages of names until you find the right one. With my rather evolved fortress, I have several HUNDRED names to search through anytime I need to engrave a slab. Some of the names aren't even visible and simply say (engrave a slab) without any associated name. It would be a HUGE timesaver if we could enter names to engrave with a partial alphabetical match like is used for ordering manangement tasks.

(0015930) Footkerchief (manager) 2011-03-07 15:46	JimiD uploaded this save at 0004053:0015925: http://dffd.wimbli.com/file.php?id=3921 [^]

(0016129) JimiD (reporter) 2011-03-11 14:53	Another save, this one with definite lag and ghost activity. http://dffd.wimbli.com/file.php?id=3951 [^] Ghost appears on the western edge of the map, at ground level, in the stream.

(0016213) MaDeR Levap (reporter) 2011-03-13 15:12	Ghosts, as non-material being, should not need any pathfinding at all. Just make straight line from x1,y1,z1 to x2,y2,z2. Maybe in some cases game incorrectly uses pathfinder instead of simplest case?

(0016333) Footkerchief (manager) 2011-03-17 09:01	gpmfuchs posted this save at 0004241: http://dffd.wimbli.com/file.php?id=3980 [^]