So what's causing the end game lag?

[Castios]

Empires that cover, say, 1/3 or more of the game map have been known to do this ever since the map expansion to India. If that empire explodes in rebellion or civil war the sheer number of units on the map kills performance.

It is not technically possible to fix in the game as it stands, it would take a total rewrite which is not going to happen at this late stage in the game's life, I am sure. Editing the save to destroy excessive units is the only way past it.

Sorry about that!

I suspected this may be the case since lag is worse when all my vassals are involved in some kind of wars. I did not have rebellion or civil war in a while so not quite sure about that.

One thing that doesn't quite add up is that I have about 500k troops from my vassals, and raising them all at once does not seem to affect performance.

 

[Rags17]

I suspected this may be the case since lag is worse when all my vassals are involved in some kind of wars. I did not have rebellion or civil war in a while so not quite sure about that.

One thing that doesn't quite add up is that I have about 500k troops from my vassals, and raising them all at once does not seem to affect performance.

One army of 500,000 men is a complete doddle for a CPU, 500,000 armies of one man each is a near crisis. The computer has to work out destination provinces, move speeds, pathing and a whole host of other issues, all while taking into account the location, composition and direction of other enemy, friendly and allied armies. If you want to see this in action just try going observer mode and zooming in - you will see literally thousands of armies marching here and there and your computer will grind to a crawl (although admittedly a lot of thi is display issues rather than CPU usage).

The bottom line is that it is the raw number of individual armies moving in war that make it so hard for the computer to determine its movement, NOT the actual size of any one army.

 

[jwalche]

I once had 2k living dynasts and decision invited thousands of characters. It was fine until major epidemics hit my realm. Then the game became unplayable.

Fortunately it wasn't ironman. I opened console and killed everyone in my realm who are unmarried, not a ruler and not my dynast. I also killed all dynast who are not a ruler and older than age 35.

The lag was gone ever since, and still hasn't returned even though my dyansty now has over 5k living members, and over 1k rulers.

 

[Castios]

I once had 2k living dynasts and decision invited thousands of characters. It was fine until major epidemics hit my realm. Then the game became unplayable.

Fortunately it wasn't ironman. I opened console and killed everyone in my realm who are unmarried, not a ruler and not my dynast. I also killed all dynast who are not a ruler and older than age 35.

The lag was gone ever since, and still hasn't returned even though my dyansty now has over 5k living members, and over 1k rulers.

That's interesting. So perhaps playing on more deadly diseases would be good idea if you plan to play for a while.

I did not have any deadly disease for a looong time now. And when I get any hospitals usually prevent it from being too deadly or even spreading too far.

Perhaps buffing diseases/nerfing hospitals would improve game performance? Or add some disease which only targets useless characters?

 

[Rags17]

:
Perhaps buffing diseases/nerfing hospitals would improve game performance? Or add some disease which only targets useless characters?

That would be classic !

"My lord, as a result of my investigations I think that I have worked out what ails you. It appears that you are suffering from Useless Courtier Disease."

"Oh no, this is social suicide - my reputation is ruined ! I am happy to meet my maker but when I go promise me that you will tell everyone that I went out with something more respectable like explosive diarrhea or chronic flatulence . . ."

 

[jwalche]

Huge epidemics are as bad as large population. I think the solution is more aggressive silent court pruning of low health. Although I think lovers of the player, especially the pregnant ones should be also immune from it.

It seems like the pruning system has some issues. It works fine when I have 30~50 courtiers. I can't remember how many low born courtiers died while being seduced or carrying my child. But it seems they don't die often once my court size reaches a few hundreds, which is totally unavoidable to just keep important prisoners and claimants whose I will eventually press.

My theory with epidemics is that, when you have very large courts, not just on your capital but on vassal courts too - which is only possible by having lots of dynasts and title claimants who are immune to court pruning, the epidemic hits harder.

Imagine having 500 out of 1000 courtiers with the disease, each developing symptoms and trying to transfer it to the rest 999 courtiers all the time. Then add a couple more diseases in the same court. And add more courts like that in the realm.

That particular game now has maxed hospitals all over the realm, and epidemics no longer are the problem. It seems just a couple dozen courtiers with the disease even in a 1000 people court doesn't slow the system much.

As for a large dynasty, my huge empire has over 1300 courts (county+barony+church+city), and little over 1000 of them are ruled by one of my 5k+ living dynasts. I don't see any lags except a short ones after landing multiple courts after a war or mass revokes.

 

[Castios]

Huge epidemics are as bad as large population. I think the solution is more aggressive silent court pruning of low health. Although I think lovers of the player, especially the pregnant ones should be also immune from it.

It seems like the pruning system has some issues. It works fine when I have 30~50 courtiers. I can't remember how many low born courtiers died while being seduced or carrying my child. But it seems they don't die often once my court size reaches a few hundreds, which is totally unavoidable to just keep important prisoners and claimants whose I will eventually press.

My theory with epidemics is that, when you have very large courts, not just on your capital but on vassal courts too - which is only possible by having lots of dynasts and title claimants who are immune to court pruning, the epidemic hits harder.

Imagine having 500 out of 1000 courtiers with the disease, each developing symptoms and trying to transfer it to the rest 999 courtiers all the time. Then add a couple more diseases in the same court. And add more courts like that in the realm.

That particular game now has maxed hospitals all over the realm, and epidemics no longer are the problem. It seems just a couple dozen courtiers with the disease even in a 1000 people court doesn't slow the system much.

As for a large dynasty, my huge empire has over 1300 courts (county+barony+church+city), and little over 1000 of them are ruled by one of my 5k+ living dynasts. I don't see any lags except a short ones after landing multiple courts after a war or mass revokes.

Interesting. Why are large epidemics bad tho.? Perhaps my lag was partially caused by version mismatch and errors, because I had only 130 courtiers myself and 700+ dynasty members.

 

[jwalche]

Why are large epidemics bad tho.?

Because the process, not the result, can be system drain in a large court.

Perhaps my lag was partially caused by version mismatch and errors

There can be many reasons of course. I have never played with a mode or planed an old save after a major update.