I've noticed that on heavily populated community lots and on speed 3, anything related to sims seems to stop working every few sim minutes or so. One minute, everyone's happily talking to each other, but then everything stops. However, I can move the camera around. Sims bob their heads, but they aren't doing any interaction animations. Then their interactions and animations resume, like nothing ever happened.Other things I've noticed is that the time jumps back into the past, and Speed 3 isn't as fast as before. This is probably because the game is switching on the LOW_PERFORMANCE clock type, which happens if the game clock and the actual time processed for sims, starts to desync. Another thing I've noticed is that if sims gain moodlets just before the delay happens, their emotion won't update until the delay is over. Thought bubbles seem to stop working during this "delay", and only start working again when the sims start to move again.For specifics, on my computer which is relatively fine, the time jumps back into the past, along with the LOW_PERFORMANCE clock type starting at about 18 seconds on speed 3. at the library venue, around noon.Here's the game's rating on my specs to give you a quick overview:Spoiler (Highlight to read)=== Rating info ===GPU: 5 GPU Memory: 4 CPU: 4 RAM: 4 CPU Speed: 3193 Threading: 3Adjusted CPU: 4590 RAM: 8130 Adjusted RAM: 7618 Cores: 4=== Rating info ===GPU: 5 GPU Memory: 4 CPU: 4 RAM: 4 CPU Speed: 3193 Threading: 3Adjusted CPU: 4590 RAM: 8130 Adjusted RAM: 7618 Cores: 4What causes this desync? I think it may be the game getting overloaded with autonomy and routing, but I'm not a Sim Guru, so I don't know.This bug has been reported by a lot of people, see the following:123

This generally means the simulation is bogged down for some reason. There are many reasons why this might happen - could be autonomy, could be routing, could be something else. They are often specific to a game situation. The issue will vary by machine spec, although your machine looks pretty good.We address them as we encounter them, and it's always helpful to have saves that exhibit the problem. If you could post your save with as much detail about how to reproduce the issue as possible that would help.-SGMS

"SimGuruModSquad;14767812" wrote:This generally means the simulation is bogged down for some reason. There are many reasons why this might happen - could be autonomy, could be routing, could be something else. They are often specific to a game situation. The issue will vary by machine spec, although your machine looks pretty good.We address them as we encounter them, and it's always helpful to have saves that exhibit the problem. If you could post your save with as much detail about how to reproduce the issue as possible that would help.-SGMSThe problem occurs in all my saves, regardless of how old they are. To reproduce: 1. Do something that results in a large amount of sims being simulated, like starting a club gathering, or going to a community lot.2. Change clock speed to speed 3.3. Watch the game slow down.I've tested with mods, no mods, high graphics, low graphics, and none of them made a difference. Here's a video showing off the bug. Youtube videoAlthough this bug seems to not be related to saves, I have a new save file which is brand-new. It's been saved at the exact start of the video above.Dropbox link

Hey, @SimGuruModSquad! It seems that the fix for this "bug" is quite easy. I'll be explaining this so anyone who also experiences this bug can fix it.Nope, while it seems to help somewhat, the problem still occurs, sorry!It seems that there is a cap on how much time the game spends on the simulation. Originally, the code looked like this. What the max_time_ms variable does is basically set how long simulating can take. If it takes longer than this, then it would def update(self, time_slice=True): max_time_ms = self.MAX_TIME_SLICE_MILLISECONDS if time_slice else None result = self.sim_timeline.simulate(services.game_clock_service().now(), max_time_ms=max_time_ms) if not result: logger.debug('Did not finish processing Sim Timeline. Current element: {}', self.sim_timeline.heap) result = self.wall_clock_timeline.simulate(services.server_clock_service().now()) if not result: logger.error('Too many iterations processing wall-clock Timeline. Likely culprit: {}', self.wall_clock_timeline.heap)I changed it so that I could see what was taking too long. I changed it to this. After running the game on speed 3 on a heavily populated lot, a LOT of interactions got delayed and got logged to a file. The file reached 60KB after a minute!@injector.inject_to(time_service.TimeService, 'update')def update(original, self, time_slice=True): max_time_ms = self.MAX_TIME_SLICE_MILLISECONDS if time_slice else None result = self.sim_timeline.simulate(services.game_clock_service().now(), max_time_ms=max_time_ms) if not result: ScumLog.log('Did not finish processing Sim Timeline. Current element:') result = self.wall_clock_timeline.simulate(services.server_clock_service().now()) for handle in self.sim_timeline.heap: if handle is not None: ScumLog.log(handle); if not result: ScumLog.log('Too many iterations processing wall-clock Timeline. Likely culprit: ') for handle in self.wall_clock_timeline.heap: if handle is not None: ScumLog.log(handle) I saw that a lot of interactions kept being delayed, so out of curiosity, I raised the max_time_ms to a really high number.@injector.inject_to(time_service.TimeService, 'update')def update(original, self, time_slice=True): max_time_ms = self.MAX_TIME_SLICE_MILLISECONDS if time_slice else None result = self.sim_timeline.simulate(services.game_clock_service().now(), 90000000) if not result: ScumLog.log('Did not finish processing Sim Timeline. Current element:') result = self.wall_clock_timeline.simulate(services.server_clock_service().now()) for handle in self.sim_timeline.heap: if handle is not None: ScumLog.log(handle); if not result: ScumLog.log('Too many iterations processing wall-clock Timeline. Likely culprit: ') for handle in self.wall_clock_timeline.heap: if handle is not None: ScumLog.log(handle)Surprisingly, this worked. No interactions were getting delayed any more, as I can tell from the log... which didn't generate at all, so it shows that NO interactions got delayed!The simulation got a lot more responsive, although this came at a somewhat negligible cost. CPU usage rose from 60% to 70%. Which is not bad at all, honestly.EDIT: It seems that interactions are still getting delayed... but I believe something else is causing it this time. Let me investigate....

"SimGuruModSquad;14767812" wrote:This generally means the simulation is bogged down for some reason. There are many reasons why this might happen - could be autonomy, could be routing, could be something else. They are often specific to a game situation. The issue will vary by machine spec, although your machine looks pretty good.We address them as we encounter them, and it's always helpful to have saves that exhibit the problem. If you could post your save with as much detail about how to reproduce the issue as possible that would help.-SGMS@SimGuruModSquad, any update on this issue? It bugs me to no end as I mainly play on Speed 3. It's almost unusable due to the large amount of time wasted by the sims on their useless head bobbing.Oh, and one more thing, the game seems to max my CPU Utilization Percent at around 60%, is this expected? It's a quad-core processor, if that helps.

Hey @simmythesim,I did some testing but could not reproduce the issue, but am on a machine that is a bit better than yours. Will try on a couple other machines when I get the chance.As for CPU usage: If you are looking at the single number reported by the Windows Task Manager that is not telling you the full story since the game is running on multiple cores, and the single number is an aggregate. If you grab something like process explorer, it will allow you to see each core's utilization.-SGMS

Anything concerning sims seem to be delayed on lots with large amount of sims on Speed 3.

bananabread1234
9 years ago
Okay, I investigated a bit more, and it seems that the amount of objects may be the cause of the problem, my sim went to the gym where the game lagged as usual, then, when I removed the building with its contents, the sims started chatting with each other without any delays. Perhaps an object is bogging the simulation down?
SimGuruEugi
9 years ago
"simmythesim;14787304" wrote:
Okay, I investigated a bit more, and it seems that the amount of objects may be the cause of the problem, my sim went to the gym where the game lagged as usual, then, when I removed the building with its contents, the sims started chatting with each other without any delays. Perhaps an object is bogging the simulation down?

Is this the gym that came with the world, or was it edited? Autonomy optimization is an ongoing effort of ours, so I'll let our QA team about this. Thanks!
bananabread1234
9 years ago
"SimGuruEugi;14809604" wrote:
"simmythesim;14787304" wrote:
Okay, I investigated a bit more, and it seems that the amount of objects may be the cause of the problem, my sim went to the gym where the game lagged as usual, then, when I removed the building with its contents, the sims started chatting with each other without any delays. Perhaps an object is bogging the simulation down?

Is this the gym that came with the world, or was it edited? Autonomy optimization is an ongoing effort of ours, so I'll let our QA team about this. Thanks!

Nope, it came with the base game.

bananabread1234

9 years ago

@SimGuruModSquad, going back to this, I removed the time limit on how much time the game can spend on the "simulate" function, and added a timer on it. The results were worrying, even on Speed 1, the "simulate" function executed around 100 ms most of the time on the library lot in Willow Creek around noon, and varying wildly from 200 ms to 2000 ms.

Here's a small log of the execution time of the simulate function at the Willow Creek library on Monday, around noon, on Speed 3.


Function took 342.39721298217773 ms
Function took 2067.561149597168 ms
Function took 420.31288146972656 ms
Function took 697.6380348205566 ms
Function took 380.08594512939453 ms
Function took 335.02912521362305 ms
Function took 346.2541103363037 ms
Function took 247.98202514648438 ms
Function took 232.00416564941406 ms
Function took 449.1159915924072 ms
Function took 179.48317527770996 ms
Function took 749.9978542327881 ms
Function took 757.5180530548096 ms
Function took 201.5058994293213 ms
Function took 270.4651355743408 ms
Function took 218.54281425476074 ms
Function took 339.475154876709 ms
Function took 183.9010715484619 ms
Function took 285.5231761932373 ms

bananabread1234

9 years ago

I managed to replace the game's simulate function and time each simulated element's execution time. Something is very wrong here, as most of the time, one processed thing in the simulate function could take up to 100 ms! Here's another little log just in case it helps you diagnose the problem.

Only things that took longer than 5 ms to process are shown on the log. The number on the left side is the time it took to execute the processed element in milliseconds.

Whenever the timeline has finished "Done with sim timeline for now" is printed.


156.94403648376465 
Done with sim timeline for now
Function took 158.44392776489258 ms
39.52813148498535 
Done with sim timeline for now
Function took 80.05785942077637 ms
11.007070541381836 .@6026; 15.00 minutes>
101.86004638671875 None
Done with sim timeline for now
Function took 119.37308311462402 ms
8.507013320922852 
100.50296783447266 
Done with sim timeline for now
Function took 126.4350414276123 ms
13.012886047363281 
100.57902336120605 
Done with sim timeline for now
Function took 116.59383773803711 ms
100.10290145874023 
Done with sim timeline for now
Function took 102.10514068603516 ms
100.18301010131836 
Done with sim timeline for now
Function took 103.546142578125 ms
219.33889389038086

Here's how it looks like when the game is running normally. I've removed the 5ms limit to show everything that was processed


0.0 
0.49996376037597656 
0.49996376037597656 
0.5009174346923828 
Done with sim timeline for now

Unless I'm misunderstanding this, the code should only be scheduling things right?

SimGuruModSquad
9 years ago
Hey @simmythesim, thanks for the info. There were a number of optimizations in the dine out patch, did you notice any improvements after that release?

In any case, we know there is performance work to be done on library lots, it's in the list of things to looks at - will try to get to it sooner rather than later.

-SGMS
bananabread1234
9 years ago
"SimGuruModSquad;14978737" wrote:
Hey @simmythesim, thanks for the info. There were a number of optimizations in the dine out patch, did you notice any improvements after that release?

In any case, we know there is performance work to be done on library lots, it's in the list of things to looks at - will try to get to it sooner rather than later.

-SGMS

Thanks for responding SGMS! Hope you can fix it soon!

EDIT: And no, there were no improvements in the Dine Out patch for libraries, although on other venues, sims are more responsive.

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