Getting some bad lag right now in Voices of the Dead. Just three people in here, but.... yikes...
Just in case you're not aware, the different physical/virtual servers host more than one instance. Therefore, it's entirely possible that server load is caused by another instance, not your own. Depending on the data center, it’s even possible that the server load is caused by another customer, not SSG. At least, that’s what I understand based on my information.
If this is true, it makes tracking down lag sources even more difficult.
Possible Sources of Server Load
In my opinion, the main cause of excessive server load in DDO is the monster "AI." More monsters seem to cause more lag, which is supported by several observations I've made:
- Wheloon Prison:
When a party recalls in Wheloon Prison and dungeon scaling begins, red Dungeon Alert is almost inevitable as you walk from one quest to another. When this happens, severe lag is almost guaranteed. This is very easy to reproduce.
- Temple of Elemental Evil (TOEE):
In TOEE, too many monsters chain aggro, leading to a similar result: many monsters aggro -> Dungeon Alert -> crippling lag.
It’s also possible that the code for Dungeon Alert itself causes additional server load, possibly due to bugs or inefficiencies.
Areas for Improvement
If SSG developers want to address lag issues, I believe the first thing they should investigate is the code for the monster "AI" and the Dungeon Alert system.
Of course, other lag sources are also possible. For example, in
Shroud, and in
Against the Demon Queen (Epic), I tracked a major problem with the dispelling orbs. At one point, it was even possible to crash the entire instance by standing in these orbs, which likely caused severe issues for the whole server.
Looking Forward
The fact that SSG is now actively addressing these problems gives me hope. Hopefully, we'll see a future where DDO has far fewer server load issues, and developers can focus on improving the game's overall gameplay.