Post: #2

From the wiki :

Sector Sleep is a function added somewhere around TUS 0.45, which causes, well, sectors to sleep. In sphere.ini, you can specify an integer value for SECTORSLEEP. We'll call that value X for now. Every X minutes, Sphere checks to see if any players are in a particular sector. I believe this takes place in one of the background threads, but I'm not certain. If no players occupy a sector, Sphere will suspend all handling of timers in that sector. When a timer reaches 0, it will simply stop there, without executing @Timer scripts or doing any default timer actions. As soon as a player enters the sector, it will awaken and everything in that sector will come to life again.

Only information about Extrabuffer is this :

UseExtraBuffer setting to sphere.ini to enable an additional data buffer for outgoing
network data.