Fast forward factor doesn't work as expected

[Donald C.]

I've set the bits_per_month to 18 and fast_forward to 50 (the default) in simuconf.tab. In theory, a month should only last 5.243 second in fast forward. However, I measured that it actually lasted about 12 seconds, which is longer. I haven't built anything yet on the map, and it doesn't seem something related to the performance. So the only possibility is that the fast_forward value is not exactly how many times it gets faster, right?

[prissi]

The fast forward gets as fast as it can while trying to stay close to the intended factor. If a map is empty, the load is too low so it is stuck between too fast and too slow for 1 ms waiting increments. When the map is larger or more to move on it, then it first gets more accurate until at a certain point it cannot keep up anymore.

You can see the current time acceleration in the lower right corner.