feat : 스트레스 테스트 기능 추가 / 패킷 처리량 제한 / 프로젝트 상황 리드미 추가
This commit is contained in:
qornwh1
203
ClientTester/EchoClientTester/StressTest/StressTestClient.cs
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203
ClientTester/EchoClientTester/StressTest/StressTestClient.cs
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@@ -0,0 +1,203 @@
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using System.Collections.Concurrent;
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using System.Diagnostics;
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using ClientTester.DummyService;
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using ClientTester.Packet;
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using LiteNetLib;
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using LiteNetLib.Utils;
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using Serilog;
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namespace ClientTester.StressTest;
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/// <summary>
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/// 스트레스 테스트용 클라이언트.
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/// Echo RTT 측정 + 이동 패킷 전송을 동시에 수행.
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/// </summary>
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public class StressTestClient
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{
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private NetManager manager;
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private EventBasedNetListener listener;
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private NetDataWriter? writer;
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public NetPeer? peer;
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public long clientId;
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// 이동
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private Vector3 position = new Vector3();
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private int rotY;
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private float moveSpeed = 3.5f;
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private float distance;
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private float preTime;
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private readonly Stopwatch moveClock = Stopwatch.StartNew();
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private float posX, posZ, dirX, dirZ;
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public MapBounds Map { get; set; } = new MapBounds(-50f, 50f, -50f, 50f);
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// RTT 측정
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private readonly ConcurrentDictionary<int, long> pendingPings = new();
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private int seqNumber;
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private const int MAX_PENDING = 500;
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/// <summary>개별 RTT 기록 (퍼센타일 계산용)</summary>
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public ConcurrentBag<double> RttSamples { get; } = new();
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// 통계
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public int SentCount { get; set; }
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public int ReceivedCount { get; set; }
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public int RttCount { get; set; }
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public double TotalRttMs { get; set; }
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public double LastRttMs { get; set; }
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public double AvgRttMs => RttCount > 0 ? TotalRttMs / RttCount : 0;
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public bool IsConnected => peer != null;
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public StressTestClient(long clientId, string ip, int port, string key)
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{
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this.clientId = clientId;
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listener = new EventBasedNetListener();
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manager = new NetManager(listener);
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writer = new NetDataWriter();
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listener.PeerConnectedEvent += netPeer =>
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{
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peer = netPeer;
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Log.Debug("[Stress {Id:000}] 연결됨", clientId);
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DummyAccTokenPacket token = new DummyAccTokenPacket { Token = clientId };
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byte[] data = PacketSerializer.Serialize((ushort)PacketCode.DUMMY_ACC_TOKEN, token);
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writer!.Put(data);
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peer.Send(writer, DeliveryMethod.ReliableOrdered);
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writer.Reset();
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};
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listener.NetworkReceiveEvent += (p, reader, ch, dm) =>
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{
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ReceivedCount++;
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try
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{
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byte[] raw = reader.GetRemainingBytes();
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if (raw.Length >= 4)
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{
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ushort type = BitConverter.ToUInt16(raw, 0);
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ushort size = BitConverter.ToUInt16(raw, 2);
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if (type == (ushort)PacketCode.ECHO && size > 0 && raw.Length >= 4 + size)
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{
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byte[] payload = new byte[size];
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Array.Copy(raw, 4, payload, 0, size);
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EchoPacket echo = PacketSerializer.DeserializePayload<EchoPacket>(payload);
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if (echo.Str.StartsWith("Echo seq:") &&
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int.TryParse(echo.Str.AsSpan("Echo seq:".Length), out int seq) &&
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pendingPings.TryRemove(seq, out long sentTick))
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{
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double rttMs = (Stopwatch.GetTimestamp() - sentTick) * 1000.0 / Stopwatch.Frequency;
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LastRttMs = rttMs;
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TotalRttMs += rttMs;
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RttCount++;
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RttSamples.Add(rttMs);
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}
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}
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}
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}
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catch
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{
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// 파싱 실패는 무시 (다른 패킷 타입)
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}
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};
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listener.PeerDisconnectedEvent += (p, info) =>
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{
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Log.Debug("[Stress {Id:000}] 끊김: {Reason}", clientId, info.Reason);
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peer = null;
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};
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manager.Start();
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manager.Connect(ip, port, key);
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}
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public void UpdateAndSendTransform()
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{
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if (peer == null || writer == null)
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{
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return;
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}
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// 이동 업데이트
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float now = (float)moveClock.Elapsed.TotalSeconds;
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float delta = preTime > 0f ? now - preTime : 0.1f;
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preTime = now;
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if (distance <= 0f)
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{
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int wallRotY = Map.GetRotYAwayFromWall(posX, posZ);
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rotY = wallRotY >= 0
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? (wallRotY + Random.Shared.Next(-30, 31) + 360) % 360
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: (rotY + Random.Shared.Next(-30, 31) + 360) % 360;
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float rad = rotY * MathF.PI / 180f;
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dirX = MathF.Sin(rad);
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dirZ = MathF.Cos(rad);
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distance = moveSpeed * (3f + (float)Random.Shared.NextDouble() * 9f);
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}
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float step = MathF.Min(moveSpeed * delta, distance);
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float nextX = posX + dirX * step;
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float nextZ = posZ + dirZ * step;
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bool hitWall = Map.Clamp(ref nextX, ref nextZ);
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posX = nextX;
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posZ = nextZ;
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distance = hitWall ? 0f : distance - step;
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position.X = (int)MathF.Round(posX);
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position.Z = (int)MathF.Round(posZ);
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// 전송
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TransformPlayerPacket pkt = new TransformPlayerPacket
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{
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PlayerId = (int)clientId,
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RotY = rotY,
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Position = new Packet.Vector3 { X = position.X, Y = 0, Z = position.Z }
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};
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byte[] data = PacketSerializer.Serialize((ushort)PacketCode.TRANSFORM_PLAYER, pkt);
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writer.Put(data);
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peer.Send(writer, DeliveryMethod.Unreliable);
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SentCount++;
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writer.Reset();
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}
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public void SendPing()
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{
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if (peer == null || writer == null)
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{
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return;
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}
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int seq = seqNumber++;
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pendingPings[seq] = Stopwatch.GetTimestamp();
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if (pendingPings.Count > MAX_PENDING)
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{
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int cutoff = seq - MAX_PENDING;
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foreach (int k in pendingPings.Keys)
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{
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if (k < cutoff)
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{
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pendingPings.TryRemove(k, out _);
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}
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}
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}
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EchoPacket echo = new EchoPacket { Str = $"Echo seq:{seq}" };
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byte[] data = PacketSerializer.Serialize((ushort)PacketCode.ECHO, echo);
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writer.Put(data);
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peer.Send(writer, DeliveryMethod.ReliableUnordered);
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SentCount++;
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writer.Reset();
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}
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public void PollEvents()
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{
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manager.PollEvents();
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}
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public void Stop()
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{
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manager.Stop();
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}
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}
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398
ClientTester/EchoClientTester/StressTest/StressTestService.cs
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398
ClientTester/EchoClientTester/StressTest/StressTestService.cs
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@@ -0,0 +1,398 @@
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using System.Diagnostics;
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using System.Globalization;
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using System.Text;
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using LiteNetLib;
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using Serilog;
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namespace ClientTester.StressTest;
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/// <summary>
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/// 스트레스/부하 테스트 서비스.
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///
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/// 기능:
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/// - 점진적 Ramp-up (N초 간격으로 클라이언트 추가)
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/// - 테스트 지속시간 제한
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/// - 실시간 처리량 (packets/sec) 측정
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/// - 퍼센타일 레이턴시 (P50, P95, P99) 계산
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/// - CSV 결과 내보내기
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/// </summary>
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public class StressTestService
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{
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private readonly string ip;
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private readonly int port;
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private readonly string key;
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private readonly int totalClients;
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private readonly int rampUpIntervalMs;
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private readonly int clientsPerRamp;
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private readonly int sendIntervalMs;
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private readonly int durationSec;
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private readonly List<StressTestClient> clients = new();
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private readonly object clientsLock = new();
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private readonly Stopwatch testClock = new();
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// 실시간 처리량 추적
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private int prevTotalSent;
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private int prevTotalRecv;
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private long prevStatsTick;
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public event Action? OnTestCompleted;
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/// <summary>
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/// 스트레스 테스트 서비스 생성.
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/// </summary>
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/// <param name="totalClients">총 클라이언트 수</param>
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/// <param name="ip">서버 IP</param>
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/// <param name="port">서버 포트</param>
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/// <param name="key">연결 키</param>
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/// <param name="durationSec">테스트 지속 시간 (초). 0 = 무제한</param>
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/// <param name="sendIntervalMs">패킷 전송 주기 (ms)</param>
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/// <param name="rampUpIntervalMs">Ramp-up 간격 (ms). 0 = 모두 즉시 접속</param>
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/// <param name="clientsPerRamp">Ramp-up 당 추가할 클라이언트 수</param>
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public StressTestService(
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int totalClients, string ip, int port, string key,
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int durationSec = 60, int sendIntervalMs = 100,
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int rampUpIntervalMs = 1000, int clientsPerRamp = 10)
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{
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this.totalClients = totalClients;
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this.ip = ip;
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this.port = port;
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this.key = key;
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this.durationSec = durationSec;
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this.sendIntervalMs = sendIntervalMs;
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this.rampUpIntervalMs = rampUpIntervalMs;
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this.clientsPerRamp = clientsPerRamp;
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}
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public async Task RunAsync(CancellationToken ct)
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{
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Log.Information("╔═══════════════════════════════════════════════╗");
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Log.Information("║ STRESS TEST 시작 ║");
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Log.Information("╠═══════════════════════════════════════════════╣");
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Log.Information("║ 서버 : {Ip}:{Port}", ip, port);
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Log.Information("║ 클라이언트 : {Count}명", totalClients);
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Log.Information("║ 지속시간 : {Dur}초", durationSec == 0 ? "무제한" : durationSec);
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Log.Information("║ 전송주기 : {Int}ms", sendIntervalMs);
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Log.Information("║ Ramp-up : {Per}명 / {Int}ms", clientsPerRamp, rampUpIntervalMs);
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Log.Information("╚═══════════════════════════════════════════════╝");
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testClock.Start();
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prevStatsTick = Stopwatch.GetTimestamp();
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using CancellationTokenSource durationCts = durationSec > 0
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? new CancellationTokenSource(TimeSpan.FromSeconds(durationSec))
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: new CancellationTokenSource();
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using CancellationTokenSource linked = CancellationTokenSource.CreateLinkedTokenSource(ct, durationCts.Token);
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await Task.WhenAll(
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RampUpLoopAsync(linked.Token),
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PollLoopAsync(linked.Token),
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SendLoopAsync(linked.Token),
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StatsLoopAsync(linked.Token)
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);
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testClock.Stop();
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OnTestCompleted?.Invoke();
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}
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/// <summary>점진적으로 클라이언트 추가</summary>
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private async Task RampUpLoopAsync(CancellationToken ct)
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{
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int created = 0;
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while (created < totalClients && !ct.IsCancellationRequested)
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{
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int batch = Math.Min(clientsPerRamp, totalClients - created);
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for (int i = 0; i < batch; i++)
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{
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long id = created + 1; // 1-based (더미 범위)
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StressTestClient client = new StressTestClient(id, ip, port, key);
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lock (clientsLock)
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{
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clients.Add(client);
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}
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created++;
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}
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Log.Information("[RAMP-UP] {Created}/{Total} 클라이언트 생성됨 ({Elapsed:F1}s)",
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created, totalClients, testClock.Elapsed.TotalSeconds);
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if (created < totalClients && rampUpIntervalMs > 0)
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{
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await Task.Delay(rampUpIntervalMs, ct).ConfigureAwait(false);
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}
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}
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Log.Information("[RAMP-UP] 완료 - 총 {Count}명 접속", created);
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}
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private async Task PollLoopAsync(CancellationToken ct)
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{
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while (!ct.IsCancellationRequested)
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{
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List<StressTestClient> snapshot;
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lock (clientsLock)
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{
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snapshot = new List<StressTestClient>(clients);
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}
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foreach (StressTestClient c in snapshot)
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{
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try
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{
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c.PollEvents();
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}
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catch
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{
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/* 무시 */
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}
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}
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await Task.Delay(10, ct).ConfigureAwait(false);
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}
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}
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private async Task SendLoopAsync(CancellationToken ct)
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{
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await Task.Delay(500, ct).ConfigureAwait(false);
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while (!ct.IsCancellationRequested)
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{
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List<StressTestClient> snapshot;
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lock (clientsLock)
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{
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snapshot = new List<StressTestClient>(clients);
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}
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foreach (StressTestClient c in snapshot)
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{
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c.UpdateAndSendTransform();
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c.SendPing();
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}
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await Task.Delay(sendIntervalMs, ct).ConfigureAwait(false);
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}
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}
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/// <summary>10초마다 실시간 통계 출력</summary>
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private async Task StatsLoopAsync(CancellationToken ct)
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{
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await Task.Delay(5000, ct).ConfigureAwait(false);
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while (!ct.IsCancellationRequested)
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{
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PrintLiveStats();
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await Task.Delay(10000, ct).ConfigureAwait(false);
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}
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}
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private void PrintLiveStats()
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{
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List<StressTestClient> snapshot;
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lock (clientsLock)
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{
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snapshot = new List<StressTestClient>(clients);
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}
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int totalSent = snapshot.Sum(c => c.SentCount);
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int totalRecv = snapshot.Sum(c => c.ReceivedCount);
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int connected = snapshot.Count(c => c.IsConnected);
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long now = Stopwatch.GetTimestamp();
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double elapsedSec = (now - prevStatsTick) * 1.0 / Stopwatch.Frequency;
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double sendRate = elapsedSec > 0 ? (totalSent - prevTotalSent) / elapsedSec : 0;
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double recvRate = elapsedSec > 0 ? (totalRecv - prevTotalRecv) / elapsedSec : 0;
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prevTotalSent = totalSent;
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prevTotalRecv = totalRecv;
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prevStatsTick = now;
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double avgRtt = 0;
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int rttClients = 0;
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foreach (StressTestClient c in snapshot)
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{
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if (c.RttCount > 0)
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{
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avgRtt += c.AvgRttMs;
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rttClients++;
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}
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}
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if (rttClients > 0)
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{
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avgRtt /= rttClients;
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}
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Log.Information(
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"[LIVE {Elapsed:F0}s] 접속={Conn}/{Total} | 전송={SendRate:F0}/s 수신={RecvRate:F0}/s | AvgRTT={Rtt:F2}ms",
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testClock.Elapsed.TotalSeconds, connected, clients.Count, sendRate, recvRate, avgRtt);
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}
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/// <summary>최종 결과 리포트 출력</summary>
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public void PrintFinalReport()
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{
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List<StressTestClient> snapshot;
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lock (clientsLock)
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{
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snapshot = new List<StressTestClient>(clients);
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}
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|
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int totalSent = 0, totalRecv = 0, connected = 0;
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List<double> allRtt = new();
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||||
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||||
foreach (StressTestClient c in snapshot)
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||||
{
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||||
totalSent += c.SentCount;
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||||
totalRecv += c.ReceivedCount;
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if (c.IsConnected)
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||||
{
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connected++;
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}
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||||
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||||
foreach (double r in c.RttSamples)
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||||
{
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||||
allRtt.Add(r);
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||||
}
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||||
}
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||||
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||||
allRtt.Sort();
|
||||
|
||||
double p50 = Percentile(allRtt, 0.50);
|
||||
double p95 = Percentile(allRtt, 0.95);
|
||||
double p99 = Percentile(allRtt, 0.99);
|
||||
double avg = allRtt.Count > 0 ? allRtt.Average() : 0;
|
||||
double min = allRtt.Count > 0 ? allRtt[0] : 0;
|
||||
double max = allRtt.Count > 0 ? allRtt[^1] : 0;
|
||||
|
||||
double durSec = testClock.Elapsed.TotalSeconds;
|
||||
double throughput = durSec > 0 ? totalSent / durSec : 0;
|
||||
|
||||
Log.Information("");
|
||||
Log.Information("╔═══════════════════════════════════════════════╗");
|
||||
Log.Information("║ STRESS TEST 최종 리포트 ║");
|
||||
Log.Information("╠═══════════════════════════════════════════════╣");
|
||||
Log.Information("║ 테스트 시간 : {Dur:F1}초", durSec);
|
||||
Log.Information("║ 클라이언트 : {Conn}/{Total} 접속 유지", connected, snapshot.Count);
|
||||
Log.Information("╠═══════════════════════════════════════════════╣");
|
||||
Log.Information("║ [처리량]");
|
||||
Log.Information("║ 총 전송 : {Sent:N0} 패킷", totalSent);
|
||||
Log.Information("║ 총 수신 : {Recv:N0} 패킷", totalRecv);
|
||||
Log.Information("║ 처리량 : {Thr:F1} 패킷/초", throughput);
|
||||
Log.Information("╠═══════════════════════════════════════════════╣");
|
||||
Log.Information("║ [레이턴시] (RTT 샘플: {Count:N0}개)", allRtt.Count);
|
||||
Log.Information("║ Min : {Min:F2} ms", min);
|
||||
Log.Information("║ Avg : {Avg:F2} ms", avg);
|
||||
Log.Information("║ P50 : {P50:F2} ms", p50);
|
||||
Log.Information("║ P95 : {P95:F2} ms", p95);
|
||||
Log.Information("║ P99 : {P99:F2} ms", p99);
|
||||
Log.Information("║ Max : {Max:F2} ms", max);
|
||||
Log.Information("╠═══════════════════════════════════════════════╣");
|
||||
|
||||
// 클라이언트별 요약 (상위 5명 최악 RTT)
|
||||
List<StressTestClient> worstClients = snapshot
|
||||
.Where(c => c.RttCount > 0)
|
||||
.OrderByDescending(c => c.AvgRttMs)
|
||||
.Take(5)
|
||||
.ToList();
|
||||
|
||||
if (worstClients.Count > 0)
|
||||
{
|
||||
Log.Information("║ [최악 RTT 상위 5 클라이언트]");
|
||||
foreach (StressTestClient c in worstClients)
|
||||
{
|
||||
NetStatistics? stats = c.peer?.Statistics;
|
||||
float lossPct = stats?.PacketLossPercent ?? 0f;
|
||||
Log.Information("║ Client {Id:000}: AvgRTT={Rtt:F2}ms Loss={Loss:F1}% Sent={S} Recv={R}",
|
||||
c.clientId, c.AvgRttMs, lossPct, c.SentCount, c.ReceivedCount);
|
||||
}
|
||||
}
|
||||
|
||||
Log.Information("╚═══════════════════════════════════════════════╝");
|
||||
}
|
||||
|
||||
/// <summary>결과를 CSV 파일로 내보내기</summary>
|
||||
public void ExportCsv(string path)
|
||||
{
|
||||
List<StressTestClient> snapshot;
|
||||
lock (clientsLock)
|
||||
{
|
||||
snapshot = new List<StressTestClient>(clients);
|
||||
}
|
||||
|
||||
StringBuilder sb = new();
|
||||
sb.AppendLine("ClientId,Sent,Received,AvgRttMs,RttCount,PacketLoss,PacketLossPct,Connected");
|
||||
|
||||
foreach (StressTestClient c in snapshot)
|
||||
{
|
||||
NetStatistics? stats = c.peer?.Statistics;
|
||||
long loss = stats?.PacketLoss ?? 0;
|
||||
float lossPct = stats?.PacketLossPercent ?? 0f;
|
||||
|
||||
sb.AppendLine(string.Format(CultureInfo.InvariantCulture,
|
||||
"{0},{1},{2},{3:F3},{4},{5},{6:F1},{7}",
|
||||
c.clientId, c.SentCount, c.ReceivedCount,
|
||||
c.AvgRttMs, c.RttCount, loss, lossPct, c.IsConnected));
|
||||
}
|
||||
|
||||
// 요약 행
|
||||
List<double> allRtt = new();
|
||||
foreach (StressTestClient c in snapshot)
|
||||
foreach (double r in c.RttSamples)
|
||||
{
|
||||
allRtt.Add(r);
|
||||
}
|
||||
|
||||
allRtt.Sort();
|
||||
|
||||
sb.AppendLine();
|
||||
sb.AppendLine("# Summary");
|
||||
sb.AppendLine(string.Format(CultureInfo.InvariantCulture,
|
||||
"# Duration={0:F1}s,Clients={1},TotalSent={2},TotalRecv={3}",
|
||||
testClock.Elapsed.TotalSeconds, snapshot.Count,
|
||||
snapshot.Sum(c => c.SentCount), snapshot.Sum(c => c.ReceivedCount)));
|
||||
sb.AppendLine(string.Format(CultureInfo.InvariantCulture,
|
||||
"# P50={0:F2}ms,P95={1:F2}ms,P99={2:F2}ms",
|
||||
Percentile(allRtt, 0.50), Percentile(allRtt, 0.95), Percentile(allRtt, 0.99)));
|
||||
|
||||
File.WriteAllText(path, sb.ToString());
|
||||
Log.Information("[CSV] 결과 저장: {Path}", path);
|
||||
}
|
||||
|
||||
public void Stop()
|
||||
{
|
||||
List<StressTestClient> snapshot;
|
||||
lock (clientsLock)
|
||||
{
|
||||
snapshot = new List<StressTestClient>(clients);
|
||||
}
|
||||
|
||||
foreach (StressTestClient c in snapshot)
|
||||
{
|
||||
c.Stop();
|
||||
}
|
||||
|
||||
Log.Information("[STRESS] 모든 클라이언트 종료됨.");
|
||||
}
|
||||
|
||||
private static double Percentile(List<double> sorted, double p)
|
||||
{
|
||||
if (sorted.Count == 0)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
double index = p * (sorted.Count - 1);
|
||||
int lower = (int)Math.Floor(index);
|
||||
int upper = (int)Math.Ceiling(index);
|
||||
if (lower == upper)
|
||||
{
|
||||
return sorted[lower];
|
||||
}
|
||||
|
||||
double frac = index - lower;
|
||||
return sorted[lower] * (1 - frac) + sorted[upper] * frac;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user