During the heartbeat loop, Update() is called on every SceneObjectGroup which in turn checks if any SceneObjectPart has changed. For large regions (> 100k prims) this work consumes 20-30% of a CPU even though there are only a few objects updating each frame.
There is only one other reason to check every object on every frame, and that is the case where a script has registered the object with an "at target" listener. We can easily track when an object is registered or unregistered with an AtTarget, so this is not a reason to check every object every heartbeat.
In the attached patch, I have added a dictionary to the scene which tracks the objects which have At Targets. Each heartbeat, the AtTarget() function will be called on every object registered with a listener for that event. Also, I added a dictionary to SceneGraph which stores references to objects which have been queued for updates during the heartbeat. At each heartbeat, Update() is called only on the objects which have generated updates during that beat.
* Fixes 'Inconsistent Attachment State' when teleporting into another region besides the SW most region slot on a MegaRegion.
* Fixes a host of other unintended attachment border cross edge cases that lead to Inconsistent attachment state.
* This also contains some inactive preliminary code for disconnecting combined regions that will be used to make one root region a virtual region of a new root region.
This involved adding a new OnUpdatePrimSingleRotationPosition event to IClientAPI so that we can get the changed position from the client.
Btw adding new events to IClientAPI is really tedious where you have to copy the change across to at least 5 or 6 other files.
[Note this doesn't fix the bug where any rotation changes to the root prim (but not the whole linkset) cause rotation errors on the child prims.]
The patch included updates the root and child prims' AttchedAvatar
with the right UUID. It also cleans the AttachedAvatar properties
for the root and child prims on Drop and Detach
This may break a lot of things, but it needs to go in. It was tested in standalone and the UCI grid, but it needs a lot more testing.
Known problems:
* HG asset transfers are borked for now
* missing texture is missing
* 3 unit tests commented out for now
arbitrary combinations of root and child prims from one or multiple
link sets. Please test throughly and consider things UNSTABLE until
this is proven out.
Changes to enable script state persistence across non-restart
serialization situations (inventory/OAR/attachments)
Also fixing test cases for OAR and IAR so they don't barf with the new code.
An attachment with the physical checkbox checked will not allow the
phantom checkbox to be cleared. This interfers with scripting
functions such as llMoveToTarget(), which won't work while an object
is phantom. If the prim containing the script is rezzed to the ground,
it will then allow the phantom checlbox to be cleared, and the script
works as expected.
John Hurliman