Dwarf Fortress > DF Dwarf Mode Discussion

Stutters on 6x6 embark and larger

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follower of nux:
Well hello there!
Im running a pretty good rig here, 6core phenom 2@3.5ghz and 8gb ram @1666mhz, power is available. version is up to date (phoebus tileset with game included)
5x5 embarks dont cause any trouble at all, even with 150 dwarfes and more but any embark area larger than that is giving me stutters every few seconds from the start. FPS usually hangs around at 80-100 but after these stutters, which completely lock the game and the window, it temporarily goes down by about 20 fps. i already tried turning weather and temp off with no success.
Playing without a tileset also gives stutters, although they're not as long as in phoebus but have the same occurrence.
Already tried LAA ,legacy and fiddling around in the inits, turning the other 5 cores down and removing 1 memory stick and playing with core affinity and priorities.

I've already taken an eye onto other threads about exactly this but nobody knew the answers.
maybe we can start working stuff out again and hopefully find an answer

krenshala:
How much swap space is available for use on your system?  What OS are you running?  I'm assuming its 64bit, or having 8G of memory is a waste (32bit can only see 4G, and only use 4G minus what it allocates for internal addressing, so usually 3.25 to 3.5 G available).

The problem with this problem is that there are a number of variables that could be affecting it, and most of them directly affect the others.

psychologicalshock:
I think the game can only use one core which is when when I overclocked #1 to 4.0 Ghz I got a lot more performance out of this game. I similarly could never make an embark larger than 5x5, who knows what it might be, RAM, processing power? One of those.

The only thing I could think of to test this is to generate shallow worlds and see if 6x6 works there, then it's probably a ram issue.

CaptainArchmage:
I can run a 3x16 embark OK on a laptop, which is not really new. Whilst I get the same kind of FPS as I seem to get from 4x4 embarks, there are larger fluctuations in the FPS.

follower of nux:
ah yeah, its win7 64 bit and i already played around with the swapfiles ,too to see its effect on df but nothing changed.
yeah, the game is single threaded but the special thing about this is:
5x5  embarks are no problemo even with a lot of stuff going on. a step up to 6x6 brings in the stuttering. no low fps or anything as its always higher than 80 anyway, just stuttering every few seconds.
this is similar to client lags someone might experience in other games, everything comes to a halt every few seconds for...about 1 second.

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