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network traffic reduction - decrease update frequency for moving avatars when velocity is unchanged

bulletsim
dahlia 2011-04-26 16:22:44 -07:00
parent 1505fbb647
commit 16f6f55f2d
1 changed files with 24 additions and 10 deletions
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24
OpenSim/Region/Framework/Scenes/ScenePresence.cs
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@ -2340,12 +2340,14 @@ namespace OpenSim.Region.Framework.Scenes
#region Update Client(s) #region Update Client(s)
/// <summary> /// <summary>
/// Sends a location update to the client connected to this scenePresence /// Sends a location update to the client connected to this scenePresence
/// </summary> /// </summary>
/// <param name="remoteClient"></param> /// <param name="remoteClient"></param>
public void SendTerseUpdateToClient(IClientAPI remoteClient) public void SendTerseUpdateToClient(IClientAPI remoteClient)
{ {
// If the client is inactive, it's getting its updates from another // If the client is inactive, it's getting its updates from another
// server. // server.
if (remoteClient.IsActive) if (remoteClient.IsActive)
@ -2367,17 +2369,32 @@ namespace OpenSim.Region.Framework.Scenes
} }
} }
// vars to support reduced update frequency when velocity is unchanged
private Vector3 lastVelocitySentToAllClients = Vector3.Zero;
private int lastTerseUpdateToAllClientsTick = Util.EnvironmentTickCount();
/// <summary> /// <summary>
/// Send a location/velocity/accelleration update to all agents in scene /// Send a location/velocity/accelleration update to all agents in scene
/// </summary> /// </summary>
public void SendTerseUpdateToAllClients() public void SendTerseUpdateToAllClients()
{ {
m_perfMonMS = Util.EnvironmentTickCount(); int currentTick = Util.EnvironmentTickCount();
// decrease update frequency when avatar is moving but velocity is not changing
if (m_velocity.Length() < 0.01f
|| Vector3.Distance(lastVelocitySentToAllClients, m_velocity) > 0.01f
|| currentTick - lastTerseUpdateToAllClientsTick > 1500)
{
m_perfMonMS = currentTick;
lastVelocitySentToAllClients = m_velocity;
lastTerseUpdateToAllClientsTick = currentTick;
m_scene.ForEachClient(SendTerseUpdateToClient); m_scene.ForEachClient(SendTerseUpdateToClient);
m_scene.StatsReporter.AddAgentTime(Util.EnvironmentTickCountSubtract(m_perfMonMS)); m_scene.StatsReporter.AddAgentTime(Util.EnvironmentTickCountSubtract(m_perfMonMS));
} }
}
public void SendCoarseLocations(List<Vector3> coarseLocations, List<UUID> avatarUUIDs) public void SendCoarseLocations(List<Vector3> coarseLocations, List<UUID> avatarUUIDs)
{ {
@ -3268,10 +3285,7 @@ namespace OpenSim.Region.Framework.Scenes
m_updateflag = true; m_updateflag = true;
// The magic constant 0.95f seems to make walking feel less jerky, Velocity = force;
// probably because it hackishly accounts for the overall latency of
// these Velocity updates -- Diva
Velocity = force * .95F;
m_forceToApply = null; m_forceToApply = null;
} }