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453e16c1d6
Attempt to fix animation perf regression introduced by #4128 Parallel.ForEach(IList<T>) uses static range partitioning which may cause load imbalance on hybrid P/E-core CPUs. Use Partitioner.Create(list, loadBalance: true) instead to restore dynamic chunk stealing that aws already used when using Parallel.ForEach(IEnumerable<T>)
28 lines
747 B
C#
28 lines
747 B
C#
using System.Collections.Concurrent;
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namespace Sandbox;
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/// <summary>
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/// Simulates VerletRope components in parallel during PrePhysicsStep
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/// </summary>
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internal sealed class VerletRopeGameSystem : GameObjectSystem
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{
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private readonly List<VerletRope> _ropes = new();
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public VerletRopeGameSystem( Scene scene ) : base( scene )
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{
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// Listen to StartFixedUpdate to run before physics
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Listen( Stage.StartFixedUpdate, -100, UpdateRopes, "UpdateRopes" );
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}
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void UpdateRopes()
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{
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_ropes.Clear();
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Scene.GetAll<VerletRope>( _ropes );
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if ( _ropes.Count == 0 ) return;
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var timeDelta = Time.Delta;
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System.Threading.Tasks.Parallel.ForEach( Partitioner.Create( _ropes, loadBalance: true ), rope => rope.Simulate( timeDelta ) );
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}
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}
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