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fix: prevent QUIC heartbeat stalls and isolate TCP retransmission counters [CI] [SKIP TESTS]
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justme committed 2026-10-20 18:23:31 +08:00
1 parent 0066a947da
commit 0fd38b2367
14 files changed
+299 -50
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backend/tests/MoShiro.Backend.Analysis.Tests/OpTests.cs
+49
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@@ -211,6 +211,55 @@ public sealed class OpTests
Assert.Equal(100UL, retrans.Denominator);
}
[Fact]
public void Retrans_InterleavedConnections_DoNotCreateFalseRetransmissions()
{
long ts = ChunkFactory.ProbeUs(0);
var builder = new StreamBuilder(Kinds.TcpEcho.FindStream("tcp_info")!);
builder.Add(ts, 0, 40_000, 0, 10, 10, 1000, 0, 1);
builder.Add(ts + 1_000_000, 0, 40_000, 0, 10, 20, 1100, 0, 2);
builder.Add(ts + 2_000_000, 0, 40_000, 0, 10, 11, 1100, 0, 1);
builder.Add(ts + 3_000_000, 0, 40_000, 0, 10, 21, 1200, 0, 2);
RawChunk chunk = ChunkFactory.Echo(s_agent, "tcp_echo", T0, 10, 100,
_ => new EchoPacket(false, false, 20_000, 20_000), extraStreams: [builder.Build()]);
var retrans = (RatioAcc)EvaluateOneBucket(chunk, "tcp.retrans").Items["tcp.retrans"];
Assert.Equal(2UL, retrans.Numerator);
Assert.Equal(200UL, retrans.Denominator);
}
[Fact]
public void Retrans_OutOfOrderSamples_DoNotMoveTheBaselineBackwards()
{
long ts = ChunkFactory.ProbeUs(0);
RawStream info = ChunkFactory.TcpInfo([
(ts, 0, 40_000u, 0u, 100u),
(ts + 2_000_000, 0, 40_000u, 2u, 300u),
(ts + 1_000_000, 0, 40_000u, 1u, 200u),
(ts + 3_000_000, 0, 40_000u, 3u, 400u),
]);
RawChunk chunk = ChunkFactory.Echo(s_agent, "tcp_echo", T0, 10, 100,
_ => new EchoPacket(false, false, 20_000, 20_000), extraStreams: [info]);
var retrans = (RatioAcc)EvaluateOneBucket(chunk, "tcp.retrans").Items["tcp.retrans"];
Assert.Equal(3UL, retrans.Numerator);
Assert.Equal(300UL, retrans.Denominator);
}
[Fact]
public void Retrans_EqualConnectionIdsOnDifferentSides_AreIndependent()
{
long ts = ChunkFactory.ProbeUs(0);
var builder = new StreamBuilder(Kinds.TcpEcho.FindStream("tcp_info")!);
builder.Add(ts, 0, 40_000, 0, 10, 10, 1000, 0, 1);
builder.Add(ts, 1, 40_000, 0, 10, 100, 2000, 0, 1);
builder.Add(ts + 1_000_000, 0, 40_000, 0, 10, 11, 1100, 0, 1);
builder.Add(ts + 1_000_000, 1, 40_000, 0, 10, 102, 2200, 0, 1);
RawChunk chunk = ChunkFactory.Echo(s_agent, "tcp_echo", T0, 10, 100,
_ => new EchoPacket(false, false, 20_000, 20_000), extraStreams: [builder.Build()]);
var retrans = (RatioAcc)EvaluateOneBucket(chunk, "tcp.retrans").Items["tcp.retrans"];
Assert.Equal(3UL, retrans.Numerator);
Assert.Equal(300UL, retrans.Denominator);
}
[Fact]
public void Connect_Outcomes_AreCountedByClass()
{