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[Satlan_Leng]

So i have a dream. A dream of a age old fortress. A dream of a massive age old fortress. A dream of owning my own clown tent. This dream though always dies to the FPS death. Now up to this point i have been cruel to my PC. Fortress with 200 +dwarves, massive stockpiles full of food and drink. Massive strip mines. Well over 300 captured goblins to use as practice for the real fight into hell. Needless to say this brings my PC fps down into the 20s. A siege brings it into the single digits.

So my question is. What is the good number on EVERYTHING. A good number for the pop max to support a large military and the fortress needed to outfit it into its march to hell. The number of farm squares for each plant to keep a never ending supply but not flood myself before i can dump it all. Any other tips on how to get a fortress that will make others weep in its age but not me weep in its slowness.

As a note its not my PC. 3.8 i7 and 8 gigs of tri channel ram. Multicore support would go a long way to making this game more fun.

[Psychobones]

Spiral stair cases, designate traffic areas, efficient use of space(IE: no 400 square long hallways), and a 2x2 embark. I've got a 200 dwarf fort running right now, it's been going for 12 years now, with no issues with FPS.

[peregarrett]

Do staircase affect FPS? 

[CapnUrist]

It's been agreed that staircases create more pathing options, and thusly increase calculations and drop FPS. Ramps are suggested, though they take up more space.

[Xenos]

It's been agreed that staircases create more pathing options, and thusly increase calculations and drop FPS. Ramps are suggested, though they take up more space.

Well, stairs can be more efficient but it depends on how you set up the staircase/rampway. 

[AngleWyrm]

How does a stairway create more pathing options over a ramp?

[Dwarf]

Well, a stair can be entered from up to 8 directions, go either up or down and left from, again, up to 8 directions.

[Dorf3000]

I've had FPS problems with spiral ramps when many dwarves use them at once.  They bump into each other all the time because they only choose the inside path, and then have to recalculate and dodge around each other when going up and down.  There is a trick you can do with constructed ramps that makes them one-way only, but that only allows upward movement.  I guess you could make a staircase too for downward movement and restrict it so dwarves going up don't use it, but it's untested.

An in-game way of making paths one-way would help with the pathfinding problems when dwarves have to pass each other.  It's probably not going to happen though.