TurboMqtt v0.1.1

0.1.1 May 2nd 2024

TurboMqtt v0.1.1 includes critical bug fixes and massive performance improvements over v0.1.0.

Bug Fixes and Improvements

• Fixed QoS=1 packet handling - was previously treating it like QoS=2.
• Improved flow control inside ClientAckHandler - result is a massive performance improvement when operating at QoS 1 and 2.
• Fix OpenTelemetry TagList for clientId and MQTT version - now we can accurately track metrics per clientId via OpenTelemetry.

Performance

BenchmarkDotNet v0.13.12, Windows 11 (10.0.22631.3447/23H2/2023Update/SunValley3)
12th Gen Intel Core i7-1260P, 1 CPU, 16 logical and 12 physical cores
.NET SDK 8.0.101
  [Host]     : .NET 8.0.1 (8.0.123.58001), X64 RyuJIT AVX2
  Job-FBXRHG : .NET 8.0.1 (8.0.123.58001), X64 RyuJIT AVX2

InvocationCount=1  LaunchCount=10  RunStrategy=Monitoring  
UnrollFactor=1  WarmupCount=10  

Method	QoSLevel	PayloadSizeBytes	ProtocolVersion	Mean	Error	StdDev	Median	Req/sec
PublishAndReceiveMessages	AtMostOnce	10	V3_1_1	5.175 μs	0.6794 μs	2.003 μs	4.345 μs	193,230.35
PublishAndReceiveMessages	AtLeastOnce	10	V3_1_1	26.309 μs	1.4071 μs	4.149 μs	25.906 μs	38,010.35
PublishAndReceiveMessages	ExactlyOnce	10	V3_1_1	44.501 μs	2.2778 μs	6.716 μs	42.175 μs	22,471.53

Learn more about TurboMqtt's performance figures here.