| Commit message (Collapse) | Author | Age | Files | Lines |
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can take several seconds, and was blocking up packet handling in the meantime
* Clamp retransmission timeout values between three and 10 seconds
* Log outgoing time for a packet right after it is sent instead of well before
* Loop through the entire UnackedPacketCollection when looking for expired packets
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tiny amount of time spent in the locks turned into a lot of time when the rest of the LLUDP implementation went lockless
* Changed the timer tracking numbers for each client to not have "memory". It will no longer queue up calls to functions like ResendUnacked
* Reverted Jim's WaitHandle code. Although it was technically more correct, it exhibited the exact same behavior as the old code but spent more cycles. The 20ms has been replaced with the minimum amount of time before a token bucket could receive a drip, and an else { sleep(0); } was added to make sure the outgoing packet handler always yields at least a minimum amount
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same category
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handling with an interruptible wait handle
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the case where no scripting engine is enabled
* Added TokenBucket.cs to OpenSim, with some fixes for setting a more accurate MaxBurst value and getting a more accurate Content value (by Drip()ing each get)
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being done for AgentUpdate packets
* Start LLUDPClients unpaused (this variable is not being used yet)
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* Changed the outgoing packet handler to use a real function instead of a closure and to track time on a per-client basis instead of a global basis
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incoming packet handler
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out exactly what is and isn't needed
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and UDP code
* Changing the cache modules to only initialize the caches if they are actually enabled. Should save a bit of resources from unused cache systems
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* Send terrain data in a spiral pattern instead of a typewriter pattern (placeholder until terrain data becomes part of the interest list management)
* Added a debug line when resent packets are being sent
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* Replaced calls to ThreadPool.QueueUserWorkItem() with ThreadPool.UnsafeQueueUserWorkItem() since OpenSim does not use Code Access Security sandboxing
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This avoids .NET remoting and a managed->unmanaged->managed jump. Overall, a night and day performance difference
* Initialize the LLClientView prim full update queue to the number of prims in the scene for a big performance boost
* Reordered some comparisons on hot code paths for a minor speed boost
* Removed an unnecessary call to the expensive DateTime.Now function (if you *have* to get the current time as opposed to Environment.TickCount, always use DateTime.UtcNow)
* Don't fire the queue empty callback for the Resend category
* Run the outgoing packet handler thread loop for each client synchronously. It seems like more time was being spent doing the execution asynchronously, and it made deadlocks very difficult to track down
* Rewrote some expensive math in LandObject.cs
* Optimized EntityManager to only lock on operations that need locking, and use TryGetValue() where possible
* Only update the attachment database when an object is attached or detached
* Other small misc. performance improvements
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packets to fill in the data more accurately and avoid allocating memory that is immediately thrown away
* Changed the Send*Data structs in IClientAPI to use public readonly members instead of private members and getters
* Made Parallel.ProcessorCount public
* Started switching over packet building methods in LLClientView to use Util.StringToBytes[256/1024]() instead of Utils.StringToBytes()
* More cleanup of the ScenePresences vs. ClientManager nightmare
* ScenePresence.HandleAgentUpdate() will now time out and drop incoming AgentUpdate packets after three seconds. This fixes a deadlock on m_AgentUpdates that was blocking up the LLUDP server
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our own avatar is ready to send
* Reduce the scope of the locks when processing the update queues
* Reuse the ImprovedTerseObjectUpdate.RegionData block
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* Handle the AgentFOV packet
* Bypass queuing and throttles for ping checks to make ping times more closely match network latency
* Only track reliable bytes in LLUDPCLient.BytesSinceLastACK
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* Fixing a log message typo
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re-prioritizing updates
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finer grained prioritization of avatars vs. prims
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a friendly error message and drop the packet
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increase throughput. Apologies to Jim for hacking on your code while it's only halfway done, I'll take responsibility for the manual merge
* Changed LLUDP to use its own MTU value of 1400 instead of the 1200 value pulled from the currently shipped libomv
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statement inside a try/catch. This statement times out for me very frequently
* More verbose logging when zerocoding fails on an outbound packet
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cloud issues
* Changed the throttling logic to obey the requested client bandwidth limit but also share bandwidth between some of the categories to improve throughput on high prim or heavily trafficked regions
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prioritization
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avatar in the sim, including yourself.
* Apparently the LLClientView should have been doing this previously.. Also fixed the 'You' on the index block.. so the client doesn't display an extra green dot.
* Thanks lkalif for bringing it to our attention.
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implements a simple distance prioritizer based on initial agent positions. Re-prioritizing and more advanced priority algorithms will follow soon
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Replaced the update lists with a priority queue implementation in LLClientView.
The priority queues are based on the MinHeap implementation also included in
this commit within the OpneSim.Framework namespace. Initially setup to exactly
mimic the behavior beofre the change which was a first come first serve queue.
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so it is clear who/what the broadcast is going to each time
* Removed two redundant parameters from SceneObjectPart
* Changed some code in terse update sending that was meant to work with references to work with value types (since Vector3 and Quaternion are structs)
* Committing a preview of a new method for sending object updates efficiently (all commented out for now)
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with a config setting, defaulting to synchronous mode
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more tweaking in the future
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the TryGetValues with try/catch instead of a lock
* Added ClientManager.ForEachSync() for operations that need to run synchronously, such as "show connections"
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* Minor formatting cleanup
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htb-throttle
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* Fixes http://opensimulator.org/mantis/view.php?id=3959
* Allows for viewing inventory textures outside home grid
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true/false on the name, rather than gridmode=true.
* Better error messages on Add/Remove clients.
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ForEach, which gets a copy of the Array. I think the ForEach was the big gorilla.
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#13:53:03 - [LLUDPSERVER]: Packet exceeded buffer size during zerocoding. Removing MSG_ZEROCODED flag
#13:53:03 - [Scene]: Failed with exception System.ArgumentException: Offset and length were out of bounds for the array or count is greater than the number of elements from index to the end of the source collection.
# at System.Buffer.BlockCopy (System.Array src, Int32 srcOffset, System.Array dst, Int32 dstOffset, Int32 count) [0x000b7] in /home/grid/install/mono24/mono-2.4.2.3/mcs/class/corlib/System/Buffer.cs:116
# at OpenSim.Region.ClientStack.LindenUDP.LLUDPServer.SendPacketData (OpenSim.Region.ClientStack.LindenUDP.LLUDPClient client, System.Byte[] data, Int32 dataLength, PacketType type, Boolean doZerocode, ThrottleOutPacketType category) [0x00060] in /home/grid/PLAZA/wrightplaza/opensim/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs:290
# at OpenSim.Region.ClientStack.LindenUDP.LLUDPServer.SendPacket (OpenSim.Region.ClientStack.LindenUDP.LLUDPClient client, OpenMetaverse.Packets.Packet packet, ThrottleOutPacketType category, Boolean allowSplitting) [0x00077] in /home/grid/PLAZA/wrightplaza/opensim/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs:265
# at OpenSim.Region.ClientStack.LindenUDP.LLClientView.OutPacket (OpenMetaverse.Packets.Packet packet, ThrottleOutPacketType throttlePacketType) [0x00000] in /home/grid/PLAZA/wrightplaza/opensim/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs:5244
# at OpenSim.Region.ClientStack.LindenUDP.LLClientView.SendCoarseLocationUpdate (System.Collections.Generic.List`1 users, System.Collections.Generic.List`1 CoarseLocations) [0x0012a] in /home/grid/PLAZA/wrightplaza/opensim/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs:3424
# at OpenSim.Region.Framework.Scenes.ScenePresence.SendCoarseLocationsDefault (UUID sceneId, OpenSim.Region.Framework.Scenes.ScenePresence p) [0x000fa] in /home/grid/PLAZA/wrightplaza/opensim/OpenSim/Region/Framework/Scenes/ScenePresence.cs:2536
# at OpenSim.Region.Framework.Scenes.ScenePresence.SendCoarseLocations () [0x0000d] in /home/grid/PLAZA/wrightplaza/opensim/OpenSim/Region/Framework/Scenes/ScenePresence.cs:2491
# at OpenSim.Region.Framework.Scenes.ScenePresence.Update () [0x00011] in /home/grid/PLAZA/wrightplaza/opensim/OpenSim/Region/Framework/Scenes/ScenePresence.cs:2404
# at OpenSim.Region.Framework.Scenes.SceneGraph.UpdateEntities () [0x0001b] in /home/grid/PLAZA/wrightplaza/opensim/OpenSim/Region/Framework/Scenes/SceneGraph.cs:164
# at OpenSim.Region.Framework.Scenes.Scene.Update () [0x000dc] in /home/grid/PLAZA/wrightplaza/opensim/OpenSim/Region/Framework/Scenes/Scene.cs:1031 On Region: Wright Plaza
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the 100-ppl load test in WP. We need to carefully play with this code in order to understand all the problems.
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* OnQueueEmpty is still called async, but will not be called for a given category if the previous callback for that category is still running. This is the most balanced behavior I could find, and seems to work well
* Added support for the old [ClientStack.LindenUDP] settings (including setting the receive buffer size) and added the new token bucket and global throttle settings
* Added the AssetLoaderEnabled config variable to optionally disable loading assets from XML every startup. This gives a dramatic improvement in startup times for those who don't need the functionality every startup
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* Crude prioritization hack
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property and .Clear() method
* Changed the way the QueueEmpty callback is fired. It will be fired asynchronously as soon as an empty queue is detected (this can happen immediately following a dequeue), and will not be fired again until at least one packet is dequeued from that queue. This will give callbacks advanced notice of an empty queue and prevent callbacks from stacking up while the queue is empty
* Added LLUDPClient.IsConnected checks in several places to prevent unwanted network activity after a client disconnects
* Prevent LLClientView.Close() from being called twice every disconnect
* Removed the packet resend limit and improved the client timeout check
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Scene
* Added some missing implementations of IClientAPI.RemoteEndPoint
* Added a ClientManager.Remove(UUID) overload
* Removed a reference to a missing project from prebuild.xml
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* Changed the ClientManager interface to reduce potential errors with duplicate or mismatched keys
* Added IClientAPI.RemoteEndPoint, which can (hopefully) eventually replace IClientAPI.CircuitCode
* Changed the order of operations during client shutdown
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