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Benchmarks

This document contains benchmarks that are run on consistent desktop hardware as this library is developed.

Naming convention:

  • <name>_Baseline: simple direct method call into the handler class
  • <name>_Mediator: the concrete Mediator class generated by this library
  • <name>_IMediator: call through the IMediator interface in this library
  • <name>_MediatR: the MediatR library

All benchmarks are parameterized with

  • ServiceLifetime (Transient, Scoped, Singleton)
  • Project type (small = ~10 messages, large = ~700 messages)

Comparison

Compares this library to MediatR specifically across a variety of scenarios.

  • Initialization - resolve IMediator from IServiceProvider
  • Cold start - resolve IMediator from IServiceProvider and send a single request using the IRequest<> overload

Does not include comparison to direct handler call (baseline in other benchmarks).


BenchmarkDotNet v0.14.0, Windows 11 (10.0.26100.3775)
AMD Ryzen 5 5600X, 1 CPU, 12 logical and 6 physical cores
.NET SDK 8.0.408
  [Host]          : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Scoped/False    : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Scoped/True     : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Singleton/False : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Singleton/True  : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Transient/False : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Transient/True  : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
Method Categories ServiceLifetime Project type Mean Error StdDev Median Ratio RatioSD Rank Gen0 Allocated Alloc Ratio
ColdStart_IMediator ColdStart Scoped Small 182.497 ns 2.5872 ns 2.4201 ns 181.406 ns 1.41x faster 0.04x 1 0.0262 440 B 1.33x less
ColdStart_MediatR ColdStart Scoped Small 256.649 ns 4.9452 ns 5.8869 ns 254.384 ns baseline 2 0.0348 584 B
ColdStart_MediatR ColdStart Scoped Large 203.742 ns 1.5245 ns 1.4260 ns 203.090 ns baseline 1 0.0348 584 B
ColdStart_IMediator ColdStart Scoped Large 205.762 ns 2.2596 ns 2.1136 ns 205.796 ns 1.01x slower 0.01x 1 0.0262 440 B 1.33x less
ColdStart_IMediator ColdStart Singleton Small 21.464 ns 0.2336 ns 0.2185 ns 21.430 ns 4.76x faster 0.05x 1 - - NA
ColdStart_MediatR ColdStart Singleton Small 102.225 ns 0.4091 ns 0.3194 ns 102.170 ns baseline 2 0.0143 240 B
ColdStart_IMediator ColdStart Singleton Large 33.109 ns 0.3034 ns 0.2838 ns 32.963 ns 3.19x faster 0.03x 1 - - NA
ColdStart_MediatR ColdStart Singleton Large 105.454 ns 0.3340 ns 0.2608 ns 105.525 ns baseline 2 0.0143 240 B
ColdStart_IMediator ColdStart Transient Small 90.174 ns 1.4549 ns 1.3610 ns 90.141 ns 1.19x faster 0.02x 1 0.0076 128 B 2.12x less
ColdStart_MediatR ColdStart Transient Small 107.245 ns 0.7706 ns 0.7209 ns 106.961 ns baseline 2 0.0162 272 B
ColdStart_IMediator ColdStart Transient Large 99.312 ns 1.5323 ns 1.4333 ns 98.405 ns 1.21x faster 0.02x 1 0.0076 128 B 2.12x less
ColdStart_MediatR ColdStart Transient Large 120.515 ns 0.7521 ns 0.6667 ns 120.576 ns baseline 2 0.0162 272 B
Initialization_IMediator Initialization Scoped Small 77.527 ns 0.6315 ns 0.5274 ns 77.466 ns 1.00x faster 0.01x 1 0.0210 352 B 1.02x more
Initialization_MediatR Initialization Scoped Small 77.845 ns 1.0981 ns 1.0272 ns 77.399 ns baseline 1 0.0205 344 B
Initialization_IMediator Initialization Scoped Large 78.882 ns 0.9058 ns 0.8472 ns 79.148 ns 1.01x faster 0.01x 1 0.0210 352 B 1.02x more
Initialization_MediatR Initialization Scoped Large 79.430 ns 0.8772 ns 0.8205 ns 79.710 ns baseline 1 0.0205 344 B
Initialization_MediatR Initialization Singleton Small 8.427 ns 0.0682 ns 0.0533 ns 8.443 ns baseline 1 - - NA
Initialization_IMediator Initialization Singleton Small 8.703 ns 0.0856 ns 0.0801 ns 8.704 ns 1.03x slower 0.01x 1 - - NA
Initialization_MediatR Initialization Singleton Large 8.649 ns 0.0761 ns 0.0711 ns 8.613 ns baseline 1 - - NA
Initialization_IMediator Initialization Singleton Large 8.955 ns 0.1028 ns 0.0961 ns 8.940 ns 1.04x slower 0.01x 1 - - NA
Initialization_IMediator Initialization Transient Small 12.303 ns 0.1729 ns 0.1617 ns 12.304 ns 1.05x faster 0.02x 1 0.0024 40 B 1.25x more
Initialization_MediatR Initialization Transient Small 12.931 ns 0.2054 ns 0.1922 ns 12.971 ns baseline 2 0.0019 32 B
Initialization_MediatR Initialization Transient Large 12.618 ns 0.0242 ns 0.0202 ns 12.628 ns baseline 1 0.0019 32 B
Initialization_IMediator Initialization Transient Large 13.335 ns 0.1547 ns 0.1447 ns 13.422 ns 1.06x slower 0.01x 2 0.0024 40 B 1.25x more
Notification_Mediator Notification,Concrete Scoped Small 45.432 ns 0.4721 ns 0.4416 ns 45.224 ns 1.84x faster 0.03x 1 - - NA
Notification_IMediator Notification,Concrete Scoped Small 50.513 ns 0.6822 ns 0.6381 ns 50.655 ns 1.65x faster 0.03x 2 - - NA
Notification_MediatR Notification,Concrete Scoped Small 83.366 ns 0.9947 ns 0.9304 ns 83.231 ns baseline 3 0.0172 288 B
Notification_Mediator Notification,Concrete Scoped Large 57.546 ns 0.0854 ns 0.0667 ns 57.556 ns 1.58x faster 0.02x 1 - - NA
Notification_IMediator Notification,Concrete Scoped Large 64.886 ns 0.8044 ns 0.7525 ns 64.600 ns 1.40x faster 0.02x 2 - - NA
Notification_MediatR Notification,Concrete Scoped Large 90.680 ns 1.0513 ns 0.9834 ns 90.743 ns baseline 3 0.0172 288 B
Notification_Mediator Notification,Concrete Singleton Small 12.306 ns 0.1079 ns 0.1009 ns 12.365 ns 8.91x faster 0.08x 1 - - NA
Notification_IMediator Notification,Concrete Singleton Small 16.828 ns 0.1746 ns 0.1633 ns 16.817 ns 6.52x faster 0.07x 2 - - NA
Notification_MediatR Notification,Concrete Singleton Small 109.672 ns 0.5929 ns 0.5546 ns 109.509 ns baseline 3 0.0172 288 B
Notification_Mediator Notification,Concrete Singleton Large 12.678 ns 0.0958 ns 0.0800 ns 12.653 ns 7.02x faster 0.10x 1 - - NA
Notification_IMediator Notification,Concrete Singleton Large 25.886 ns 0.2697 ns 0.2523 ns 25.811 ns 3.44x faster 0.05x 2 - - NA
Notification_MediatR Notification,Concrete Singleton Large 89.025 ns 1.2535 ns 1.1725 ns 89.508 ns baseline 3 0.0172 288 B
Notification_Mediator Notification,Concrete Transient Small 56.651 ns 0.5902 ns 0.5521 ns 56.814 ns 1.61x faster 0.02x 1 0.0033 56 B 5.14x less
Notification_IMediator Notification,Concrete Transient Small 61.682 ns 0.6987 ns 0.6536 ns 61.705 ns 1.48x faster 0.02x 2 0.0033 56 B 5.14x less
Notification_MediatR Notification,Concrete Transient Small 91.144 ns 1.0279 ns 0.9615 ns 91.051 ns baseline 3 0.0172 288 B
Notification_Mediator Notification,Concrete Transient Large 72.405 ns 1.1990 ns 1.1216 ns 72.358 ns 1.47x faster 0.03x 1 0.0033 56 B 5.14x less
Notification_IMediator Notification,Concrete Transient Large 75.957 ns 0.7581 ns 0.7091 ns 75.535 ns 1.40x faster 0.02x 2 0.0033 56 B 5.14x less
Notification_MediatR Notification,Concrete Transient Large 106.351 ns 1.2413 ns 1.1611 ns 106.153 ns baseline 3 0.0172 288 B
Notification_IMediator_Object Notification,Object Scoped Small 44.494 ns 0.4836 ns 0.4524 ns 44.318 ns 2.29x faster 0.04x 1 - - NA
Notification_MediatR_Object Notification,Object Scoped Small 101.838 ns 1.4235 ns 1.3316 ns 101.194 ns baseline 2 0.0172 288 B
Notification_IMediator_Object Notification,Object Scoped Large 57.815 ns 0.5169 ns 0.4835 ns 58.083 ns 1.46x faster 0.02x 1 - - NA
Notification_MediatR_Object Notification,Object Scoped Large 84.322 ns 0.6173 ns 0.5774 ns 84.058 ns baseline 2 0.0172 288 B
Notification_IMediator_Object Notification,Object Singleton Small 13.193 ns 0.1726 ns 0.1614 ns 13.178 ns 6.01x faster 0.07x 1 - - NA
Notification_MediatR_Object Notification,Object Singleton Small 79.309 ns 0.2321 ns 0.2057 ns 79.301 ns baseline 2 0.0172 288 B
Notification_IMediator_Object Notification,Object Singleton Large 22.005 ns 0.2232 ns 0.2088 ns 21.937 ns 3.69x faster 0.06x 1 - - NA
Notification_MediatR_Object Notification,Object Singleton Large 81.114 ns 1.0540 ns 0.9859 ns 81.068 ns baseline 2 0.0172 288 B
Notification_IMediator_Object Notification,Object Transient Small 62.065 ns 0.8903 ns 0.8328 ns 62.599 ns 1.43x faster 0.03x 1 0.0033 56 B 5.14x less
Notification_MediatR_Object Notification,Object Transient Small 88.608 ns 1.3539 ns 1.2665 ns 88.004 ns baseline 2 0.0172 288 B
Notification_IMediator_Object Notification,Object Transient Large 66.820 ns 0.9845 ns 0.9209 ns 66.366 ns 1.25x faster 0.02x 1 0.0033 56 B 5.14x less
Notification_MediatR_Object Notification,Object Transient Large 83.585 ns 0.9818 ns 0.7665 ns 83.880 ns baseline 2 0.0172 288 B
Request_Mediator Request,Concrete Scoped Small 59.258 ns 0.0758 ns 0.0592 ns 59.248 ns 1.55x faster 0.02x 1 0.0038 64 B 3.75x less
Request_IMediator Request,Concrete Scoped Small 69.451 ns 1.0378 ns 0.9708 ns 69.367 ns 1.32x faster 0.02x 2 0.0038 64 B 3.75x less
Request_MediatR Request,Concrete Scoped Small 91.779 ns 1.3081 ns 1.2236 ns 91.653 ns baseline 3 0.0143 240 B
Request_Mediator Request,Concrete Scoped Large 69.319 ns 0.9661 ns 0.9037 ns 69.162 ns 1.49x faster 0.04x 1 0.0038 64 B 3.75x less
Request_IMediator Request,Concrete Scoped Large 93.343 ns 1.2152 ns 1.1367 ns 93.213 ns 1.11x faster 0.03x 2 0.0038 64 B 3.75x less
Request_MediatR Request,Concrete Scoped Large 103.518 ns 2.0766 ns 2.6262 ns 103.559 ns baseline 3 0.0143 240 B
Request_Mediator Request,Concrete Singleton Small 2.091 ns 0.0356 ns 0.0278 ns 2.106 ns 43.88x faster 0.72x 1 - - NA
Request_IMediator Request,Concrete Singleton Small 12.593 ns 0.2094 ns 0.1959 ns 12.582 ns 7.29x faster 0.13x 2 - - NA
Request_MediatR Request,Concrete Singleton Small 91.748 ns 1.0168 ns 0.9511 ns 91.636 ns baseline 3 0.0143 240 B
Request_Mediator Request,Concrete Singleton Large 4.545 ns 0.0052 ns 0.0049 ns 4.545 ns 21.80x faster 0.19x 1 - - NA
Request_IMediator Request,Concrete Singleton Large 23.841 ns 0.2726 ns 0.2550 ns 23.831 ns 4.16x faster 0.06x 2 - - NA
Request_MediatR Request,Concrete Singleton Large 99.087 ns 0.9557 ns 0.8940 ns 99.637 ns baseline 3 0.0143 240 B
Request_Mediator Request,Concrete Transient Small 44.455 ns 0.5580 ns 0.5219 ns 44.361 ns 2.30x faster 0.03x 1 0.0052 88 B 2.73x less
Request_IMediator Request,Concrete Transient Small 54.710 ns 0.5731 ns 0.5361 ns 54.463 ns 1.87x faster 0.02x 2 0.0052 88 B 2.73x less
Request_MediatR Request,Concrete Transient Small 102.331 ns 0.2981 ns 0.2328 ns 102.364 ns baseline 3 0.0143 240 B
Request_Mediator Request,Concrete Transient Large 43.995 ns 0.6794 ns 0.6355 ns 44.022 ns 2.28x faster 0.03x 1 0.0052 88 B 2.73x less
Request_IMediator Request,Concrete Transient Large 63.358 ns 0.7642 ns 0.7148 ns 63.265 ns 1.58x faster 0.02x 2 0.0052 88 B 2.73x less
Request_MediatR Request,Concrete Transient Large 100.281 ns 0.3184 ns 0.2658 ns 100.350 ns baseline 3 0.0143 240 B
Request_IMediator_Object Request,Object Scoped Small 82.444 ns 0.9427 ns 0.8818 ns 82.233 ns 1.33x faster 0.02x 1 0.0038 64 B 4.88x less
Request_MediatR_Object Request,Object Scoped Small 109.498 ns 1.3910 ns 1.3012 ns 108.816 ns baseline 2 0.0186 312 B
Request_IMediator_Object Request,Object Scoped Large 110.239 ns 0.8654 ns 0.8095 ns 110.703 ns 1.01x faster 0.02x 1 0.0038 64 B 4.88x less
Request_MediatR_Object Request,Object Scoped Large 111.629 ns 1.7231 ns 1.6118 ns 111.685 ns baseline 1 0.0186 312 B
Request_IMediator_Object Request,Object Singleton Small 17.398 ns 0.1819 ns 0.1701 ns 17.310 ns 6.32x faster 0.06x 1 - - NA
Request_MediatR_Object Request,Object Singleton Small 109.889 ns 0.2991 ns 0.2651 ns 109.793 ns baseline 2 0.0186 312 B
Request_IMediator_Object Request,Object Singleton Large 48.037 ns 0.0878 ns 0.0685 ns 48.016 ns 2.62x faster 0.03x 1 - - NA
Request_MediatR_Object Request,Object Singleton Large 125.882 ns 1.8130 ns 1.5140 ns 126.570 ns baseline 2 0.0186 312 B
Request_IMediator_Object Request,Object Transient Small 67.150 ns 0.6297 ns 0.5890 ns 66.970 ns 1.70x faster 0.02x 1 0.0052 88 B 3.55x less
Request_MediatR_Object Request,Object Transient Small 114.019 ns 1.5131 ns 1.4153 ns 114.502 ns baseline 2 0.0186 312 B
Request_IMediator_Object Request,Object Transient Large 92.067 ns 0.6857 ns 0.6414 ns 92.540 ns 1.17x faster 0.02x 1 0.0052 88 B 3.55x less
Request_MediatR_Object Request,Object Transient Large 107.835 ns 1.9923 ns 1.8636 ns 106.788 ns baseline 2 0.0186 312 B
StreamRequest_Mediator StreamRequest,Concrete Scoped Small 148.902 ns 1.2537 ns 1.1727 ns 148.336 ns 2.19x faster 0.02x 1 0.0091 152 B 3.47x less
StreamRequest_IMediator StreamRequest,Concrete Scoped Small 150.262 ns 0.3164 ns 0.2642 ns 150.145 ns 2.17x faster 0.01x 1 0.0091 152 B 3.47x less
StreamRequest_MediatR StreamRequest,Concrete Scoped Small 325.586 ns 0.8436 ns 0.6586 ns 325.682 ns baseline 2 0.0315 528 B
StreamRequest_Mediator StreamRequest,Concrete Scoped Large 154.899 ns 1.5809 ns 1.4787 ns 154.418 ns 2.21x faster 0.03x 1 0.0091 152 B 3.47x less
StreamRequest_IMediator StreamRequest,Concrete Scoped Large 171.930 ns 0.5838 ns 0.5461 ns 172.172 ns 1.99x faster 0.02x 2 0.0091 152 B 3.47x less
StreamRequest_MediatR StreamRequest,Concrete Scoped Large 342.480 ns 3.7124 ns 3.4726 ns 340.650 ns baseline 3 0.0315 528 B
StreamRequest_Mediator StreamRequest,Concrete Singleton Small 89.165 ns 0.8095 ns 0.7572 ns 88.734 ns 3.74x faster 0.06x 1 0.0052 88 B 6.00x less
StreamRequest_IMediator StreamRequest,Concrete Singleton Small 93.405 ns 1.0071 ns 0.9421 ns 92.981 ns 3.57x faster 0.06x 2 0.0052 88 B 6.00x less
StreamRequest_MediatR StreamRequest,Concrete Singleton Small 333.733 ns 4.6877 ns 4.3849 ns 333.887 ns baseline 3 0.0315 528 B
StreamRequest_Mediator StreamRequest,Concrete Singleton Large 90.182 ns 0.6587 ns 0.6161 ns 89.847 ns 3.70x faster 0.05x 1 0.0052 88 B 6.00x less
StreamRequest_IMediator StreamRequest,Concrete Singleton Large 110.232 ns 1.0520 ns 0.9840 ns 110.590 ns 3.03x faster 0.04x 2 0.0052 88 B 6.00x less
StreamRequest_MediatR StreamRequest,Concrete Singleton Large 333.911 ns 3.9332 ns 3.6791 ns 331.882 ns baseline 3 0.0315 528 B
StreamRequest_Mediator StreamRequest,Concrete Transient Small 135.616 ns 2.1229 ns 1.9858 ns 135.247 ns 2.41x faster 0.04x 1 0.0105 176 B 3.00x less
StreamRequest_IMediator StreamRequest,Concrete Transient Small 137.745 ns 0.4240 ns 0.3311 ns 137.776 ns 2.37x faster 0.02x 1 0.0105 176 B 3.00x less
StreamRequest_MediatR StreamRequest,Concrete Transient Small 326.920 ns 3.6046 ns 3.3717 ns 325.506 ns baseline 2 0.0315 528 B
StreamRequest_Mediator StreamRequest,Concrete Transient Large 149.101 ns 1.3009 ns 1.2168 ns 148.281 ns 2.21x faster 0.02x 1 0.0105 176 B 3.00x less
StreamRequest_IMediator StreamRequest,Concrete Transient Large 155.803 ns 1.8982 ns 1.7755 ns 155.736 ns 2.12x faster 0.02x 1 0.0105 176 B 3.00x less
StreamRequest_MediatR StreamRequest,Concrete Transient Large 330.115 ns 0.8829 ns 0.7373 ns 330.273 ns baseline 2 0.0315 528 B
StreamRequest_IMediator_Object StreamRequest,Object Scoped Small 152.248 ns 1.2778 ns 1.1953 ns 151.641 ns 2.97x faster 0.04x 1 0.0091 152 B 4.79x less
StreamRequest_MediatR_Object StreamRequest,Object Scoped Small 451.828 ns 4.7391 ns 4.4330 ns 453.641 ns baseline 2 0.0434 728 B
StreamRequest_IMediator_Object StreamRequest,Object Scoped Large 283.295 ns 3.3448 ns 3.1287 ns 285.763 ns 1.65x faster 0.03x 1 0.0210 352 B 2.07x less
StreamRequest_MediatR_Object StreamRequest,Object Scoped Large 466.648 ns 6.1358 ns 5.7394 ns 466.418 ns baseline 2 0.0434 728 B
StreamRequest_IMediator_Object StreamRequest,Object Singleton Small 89.333 ns 1.1532 ns 1.0787 ns 89.155 ns 4.99x faster 0.07x 1 0.0052 88 B 8.27x less
StreamRequest_MediatR_Object StreamRequest,Object Singleton Small 445.828 ns 4.3816 ns 4.0985 ns 443.209 ns baseline 2 0.0434 728 B
StreamRequest_IMediator_Object StreamRequest,Object Singleton Large 210.370 ns 2.0411 ns 1.9093 ns 211.188 ns 2.17x faster 0.04x 1 0.0162 272 B 2.68x less
StreamRequest_MediatR_Object StreamRequest,Object Singleton Large 456.542 ns 7.3446 ns 6.8702 ns 451.907 ns baseline 2 0.0434 728 B
StreamRequest_IMediator_Object StreamRequest,Object Transient Small 138.267 ns 1.9290 ns 1.8044 ns 137.245 ns 3.32x faster 0.06x 1 0.0105 176 B 4.14x less
StreamRequest_MediatR_Object StreamRequest,Object Transient Small 459.606 ns 5.6478 ns 5.2830 ns 456.771 ns baseline 2 0.0434 728 B
StreamRequest_IMediator_Object StreamRequest,Object Transient Large 260.530 ns 3.4777 ns 3.2531 ns 260.462 ns 1.74x faster 0.02x 1 0.0224 376 B 1.94x less
StreamRequest_MediatR_Object StreamRequest,Object Transient Large 452.623 ns 1.7500 ns 1.3663 ns 452.602 ns baseline 2 0.0434 728 B

Requests


BenchmarkDotNet v0.14.0, Windows 11 (10.0.26100.3775)
AMD Ryzen 5 5600X, 1 CPU, 12 logical and 6 physical cores
.NET SDK 8.0.408
  [Host]          : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Scoped/False    : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Scoped/True     : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Singleton/False : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Singleton/True  : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Transient/False : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Transient/True  : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
Method ServiceLifetime Project type Mean Error StdDev Ratio RatioSD Rank Gen0 Allocated Alloc Ratio
SendRequest_Baseline Scoped Small 0.6981 ns 0.0360 ns 0.0319 ns baseline 1 - - NA
SendRequest_Mediator Scoped Small 59.1317 ns 0.8285 ns 0.7749 ns 84.87x slower 3.95x 2 0.0038 64 B NA
SendRequest_IMediator Scoped Small 67.8432 ns 0.6172 ns 0.5773 ns 97.38x slower 4.43x 3 0.0038 64 B NA
SendRequest_MediatR Scoped Small 92.2899 ns 1.8752 ns 2.9743 ns 132.47x slower 7.26x 4 0.0143 240 B NA
SendRequest_Baseline Scoped Large 0.8265 ns 0.0309 ns 0.0289 ns baseline 1 - - NA
SendRequest_Mediator Scoped Large 62.1197 ns 0.9575 ns 0.8957 ns 75.24x slower 2.71x 2 0.0038 64 B NA
SendRequest_IMediator Scoped Large 84.9915 ns 0.9094 ns 0.8507 ns 102.94x slower 3.56x 3 0.0038 64 B NA
SendRequest_MediatR Scoped Large 95.4330 ns 1.3768 ns 1.2878 ns 115.59x slower 4.13x 4 0.0143 240 B NA
SendRequest_Baseline Singleton Small 0.6845 ns 0.0304 ns 0.0285 ns baseline 1 - - NA
SendRequest_Mediator Singleton Small 2.1552 ns 0.0544 ns 0.0509 ns 3.15x slower 0.15x 2 - - NA
SendRequest_IMediator Singleton Small 11.4761 ns 0.1480 ns 0.1384 ns 16.79x slower 0.72x 3 - - NA
SendRequest_MediatR Singleton Small 89.3342 ns 0.9817 ns 0.9183 ns 130.73x slower 5.52x 4 0.0143 240 B NA
SendRequest_Baseline Singleton Large 0.8382 ns 0.0198 ns 0.0154 ns baseline 1 - - NA
SendRequest_Mediator Singleton Large 4.3344 ns 0.0053 ns 0.0050 ns 5.17x slower 0.09x 2 - - NA
SendRequest_IMediator Singleton Large 23.3037 ns 0.1319 ns 0.1101 ns 27.81x slower 0.51x 3 - - NA
SendRequest_MediatR Singleton Large 94.3976 ns 0.8197 ns 0.7668 ns 112.65x slower 2.20x 4 0.0143 240 B NA
SendRequest_Baseline Transient Small 0.6777 ns 0.0038 ns 0.0032 ns baseline 1 - - NA
SendRequest_Mediator Transient Small 45.5980 ns 0.9322 ns 1.1097 ns 67.29x slower 1.63x 2 0.0052 88 B NA
SendRequest_IMediator Transient Small 53.7563 ns 0.6740 ns 0.6304 ns 79.33x slower 0.97x 3 0.0052 88 B NA
SendRequest_MediatR Transient Small 89.1215 ns 0.3485 ns 0.2910 ns 131.52x slower 0.72x 4 0.0143 240 B NA
SendRequest_Baseline Transient Large 0.8872 ns 0.0379 ns 0.0355 ns baseline 1 - - NA
SendRequest_Mediator Transient Large 49.3186 ns 1.0209 ns 1.2911 ns 55.67x slower 2.54x 2 0.0052 88 B NA
SendRequest_IMediator Transient Large 80.3574 ns 0.7423 ns 0.6943 ns 90.71x slower 3.50x 3 0.0052 88 B NA
SendRequest_MediatR Transient Large 103.0883 ns 1.5314 ns 1.4325 ns 116.36x slower 4.66x 4 0.0143 240 B NA

Notifications


BenchmarkDotNet v0.14.0, Windows 11 (10.0.26100.3775)
AMD Ryzen 5 5600X, 1 CPU, 12 logical and 6 physical cores
.NET SDK 8.0.408
  [Host]                       : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Scoped/ForeachAwait/False    : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Scoped/ForeachAwait/True     : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Scoped/TaskWhenAll/False     : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Scoped/TaskWhenAll/True      : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Singleton/ForeachAwait/False : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Singleton/ForeachAwait/True  : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Singleton/TaskWhenAll/False  : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Singleton/TaskWhenAll/True   : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Transient/ForeachAwait/False : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Transient/ForeachAwait/True  : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Transient/TaskWhenAll/False  : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Transient/TaskWhenAll/True   : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
Method Scenario ServiceLifetime NotificationPublisher Project type Mean Error StdDev Median Ratio RatioSD Rank Gen0 Allocated Alloc Ratio
Publish_Notification_Baseline SingleHandlerSync Scoped ForeachAwait Small 7.305 ns 0.1017 ns 0.0951 ns 7.251 ns baseline 1 - - NA
Publish_Notification_Mediator SingleHandlerSync Scoped ForeachAwait Small 48.001 ns 0.8086 ns 0.7564 ns 47.896 ns 6.57x slower 0.13x 2 - - NA
Publish_Notification_IMediator SingleHandlerSync Scoped ForeachAwait Small 54.616 ns 0.6510 ns 0.6089 ns 54.352 ns 7.48x slower 0.12x 3 - - NA
Publish_Notification_MediatR SingleHandlerSync Scoped ForeachAwait Small 93.706 ns 1.1838 ns 1.1073 ns 94.268 ns 12.83x slower 0.22x 4 0.0172 288 B NA
Publish_Notification_Baseline SingleHandlerSync Scoped ForeachAwait Large 8.443 ns 0.1293 ns 0.1210 ns 8.378 ns baseline 1 - - NA
Publish_Notification_Mediator SingleHandlerSync Scoped ForeachAwait Large 58.017 ns 0.0857 ns 0.0801 ns 57.997 ns 6.87x slower 0.09x 2 - - NA
Publish_Notification_IMediator SingleHandlerSync Scoped ForeachAwait Large 64.882 ns 0.0756 ns 0.0670 ns 64.873 ns 7.69x slower 0.11x 3 - - NA
Publish_Notification_MediatR SingleHandlerSync Scoped ForeachAwait Large 87.541 ns 0.9963 ns 0.9319 ns 88.076 ns 10.37x slower 0.18x 4 0.0172 288 B NA
Publish_Notification_Baseline SingleHandlerSync Scoped TaskWhenAll Small 7.371 ns 0.1203 ns 0.1125 ns 7.456 ns baseline 1 - - NA
Publish_Notification_Mediator SingleHandlerSync Scoped TaskWhenAll Small 45.582 ns 0.4035 ns 0.3150 ns 45.497 ns 6.19x slower 0.10x 2 - - NA
Publish_Notification_IMediator SingleHandlerSync Scoped TaskWhenAll Small 57.228 ns 0.9063 ns 0.8477 ns 56.535 ns 7.77x slower 0.16x 3 - - NA
Publish_Notification_MediatR SingleHandlerSync Scoped TaskWhenAll Small 87.690 ns 0.9378 ns 0.8772 ns 87.361 ns 11.90x slower 0.21x 4 0.0172 288 B NA
Publish_Notification_Baseline SingleHandlerSync Scoped TaskWhenAll Large 7.341 ns 0.1203 ns 0.1125 ns 7.427 ns baseline 1 - - NA
Publish_Notification_Mediator SingleHandlerSync Scoped TaskWhenAll Large 59.247 ns 0.7027 ns 0.6573 ns 59.632 ns 8.07x slower 0.15x 2 - - NA
Publish_Notification_IMediator SingleHandlerSync Scoped TaskWhenAll Large 67.162 ns 0.9356 ns 0.8751 ns 66.641 ns 9.15x slower 0.18x 3 - - NA
Publish_Notification_MediatR SingleHandlerSync Scoped TaskWhenAll Large 87.184 ns 0.9138 ns 0.8547 ns 86.902 ns 11.88x slower 0.21x 4 0.0172 288 B NA
Publish_Notification_Baseline SingleHandlerSync Singleton ForeachAwait Small 7.467 ns 0.0063 ns 0.0049 ns 7.467 ns baseline 1 - - NA
Publish_Notification_Mediator SingleHandlerSync Singleton ForeachAwait Small 14.682 ns 0.1814 ns 0.1697 ns 14.603 ns 1.97x slower 0.02x 2 - - NA
Publish_Notification_IMediator SingleHandlerSync Singleton ForeachAwait Small 18.116 ns 0.1526 ns 0.1427 ns 18.042 ns 2.43x slower 0.02x 3 - - NA
Publish_Notification_MediatR SingleHandlerSync Singleton ForeachAwait Small 87.571 ns 1.7179 ns 1.6872 ns 86.718 ns 11.73x slower 0.22x 4 0.0172 288 B NA
Publish_Notification_Baseline SingleHandlerSync Singleton ForeachAwait Large 7.330 ns 0.1290 ns 0.1207 ns 7.231 ns baseline 1 - - NA
Publish_Notification_Mediator SingleHandlerSync Singleton ForeachAwait Large 16.195 ns 0.1891 ns 0.1769 ns 16.054 ns 2.21x slower 0.04x 2 - - NA
Publish_Notification_IMediator SingleHandlerSync Singleton ForeachAwait Large 30.843 ns 0.2375 ns 0.1983 ns 30.740 ns 4.21x slower 0.07x 3 - - NA
Publish_Notification_MediatR SingleHandlerSync Singleton ForeachAwait Large 86.646 ns 0.9101 ns 0.8513 ns 86.976 ns 11.82x slower 0.22x 4 0.0172 288 B NA
Publish_Notification_Baseline SingleHandlerSync Singleton TaskWhenAll Small 7.386 ns 0.1112 ns 0.1040 ns 7.461 ns baseline 1 - - NA
Publish_Notification_Mediator SingleHandlerSync Singleton TaskWhenAll Small 14.983 ns 0.0186 ns 0.0145 ns 14.983 ns 2.03x slower 0.03x 2 - - NA
Publish_Notification_IMediator SingleHandlerSync Singleton TaskWhenAll Small 19.043 ns 0.2134 ns 0.1997 ns 18.926 ns 2.58x slower 0.04x 3 - - NA
Publish_Notification_MediatR SingleHandlerSync Singleton TaskWhenAll Small 86.530 ns 1.2116 ns 1.1333 ns 86.420 ns 11.72x slower 0.22x 4 0.0172 288 B NA
Publish_Notification_Baseline SingleHandlerSync Singleton TaskWhenAll Large 7.542 ns 0.1142 ns 0.1068 ns 7.479 ns baseline 1 - - NA
Publish_Notification_Mediator SingleHandlerSync Singleton TaskWhenAll Large 16.899 ns 0.1462 ns 0.1367 ns 16.834 ns 2.24x slower 0.04x 2 - - NA
Publish_Notification_IMediator SingleHandlerSync Singleton TaskWhenAll Large 30.736 ns 0.0569 ns 0.0444 ns 30.737 ns 4.08x slower 0.06x 3 - - NA
Publish_Notification_MediatR SingleHandlerSync Singleton TaskWhenAll Large 102.222 ns 0.9934 ns 0.9293 ns 102.166 ns 13.56x slower 0.22x 4 0.0172 288 B NA
Publish_Notification_Baseline SingleHandlerSync Transient ForeachAwait Small 7.248 ns 0.0140 ns 0.0131 ns 7.242 ns baseline 1 - - NA
Publish_Notification_Mediator SingleHandlerSync Transient ForeachAwait Small 54.226 ns 1.0196 ns 0.9537 ns 53.618 ns 7.48x slower 0.13x 2 0.0033 56 B NA
Publish_Notification_IMediator SingleHandlerSync Transient ForeachAwait Small 58.864 ns 0.2144 ns 0.1901 ns 58.822 ns 8.12x slower 0.03x 3 0.0033 56 B NA
Publish_Notification_MediatR SingleHandlerSync Transient ForeachAwait Small 89.090 ns 0.1972 ns 0.1646 ns 89.029 ns 12.29x slower 0.03x 4 0.0172 288 B NA
Publish_Notification_Baseline SingleHandlerSync Transient ForeachAwait Large 7.231 ns 0.0085 ns 0.0066 ns 7.233 ns baseline 1 - - NA
Publish_Notification_Mediator SingleHandlerSync Transient ForeachAwait Large 67.494 ns 0.0998 ns 0.0885 ns 67.478 ns 9.33x slower 0.01x 2 0.0033 56 B NA
Publish_Notification_IMediator SingleHandlerSync Transient ForeachAwait Large 75.528 ns 0.9140 ns 0.8549 ns 75.303 ns 10.45x slower 0.11x 3 0.0033 56 B NA
Publish_Notification_MediatR SingleHandlerSync Transient ForeachAwait Large 91.516 ns 0.9592 ns 0.8973 ns 92.166 ns 12.66x slower 0.12x 4 0.0172 288 B NA
Publish_Notification_Baseline SingleHandlerSync Transient TaskWhenAll Small 7.534 ns 0.1159 ns 0.1084 ns 7.457 ns baseline 1 - - NA
Publish_Notification_Mediator SingleHandlerSync Transient TaskWhenAll Small 52.938 ns 0.3778 ns 0.3534 ns 52.760 ns 7.03x slower 0.11x 2 0.0033 56 B NA
Publish_Notification_IMediator SingleHandlerSync Transient TaskWhenAll Small 62.067 ns 0.6694 ns 0.6261 ns 61.902 ns 8.24x slower 0.14x 3 0.0033 56 B NA
Publish_Notification_MediatR SingleHandlerSync Transient TaskWhenAll Small 87.497 ns 1.1407 ns 1.0670 ns 88.185 ns 11.62x slower 0.21x 4 0.0172 288 B NA
Publish_Notification_Baseline SingleHandlerSync Transient TaskWhenAll Large 7.246 ns 0.0240 ns 0.0225 ns 7.241 ns baseline 1 - - NA
Publish_Notification_Mediator SingleHandlerSync Transient TaskWhenAll Large 64.716 ns 0.1337 ns 0.1185 ns 64.669 ns 8.93x slower 0.03x 2 0.0033 56 B NA
Publish_Notification_IMediator SingleHandlerSync Transient TaskWhenAll Large 75.160 ns 0.9397 ns 0.8790 ns 75.267 ns 10.37x slower 0.12x 3 0.0033 56 B NA
Publish_Notification_MediatR SingleHandlerSync Transient TaskWhenAll Large 87.441 ns 0.7601 ns 0.7110 ns 87.950 ns 12.07x slower 0.10x 4 0.0172 288 B NA
Publish_Notification_Baseline MultiHandlersSync Scoped ForeachAwait Small 6.956 ns 0.0087 ns 0.0082 ns 6.954 ns baseline 1 - - NA
Publish_Notification_Mediator MultiHandlersSync Scoped ForeachAwait Small 50.251 ns 0.5134 ns 0.4802 ns 50.635 ns 7.22x slower 0.07x 2 - - NA
Publish_Notification_IMediator MultiHandlersSync Scoped ForeachAwait Small 54.916 ns 0.5922 ns 0.5540 ns 54.750 ns 7.89x slower 0.08x 3 - - NA
Publish_Notification_MediatR MultiHandlersSync Scoped ForeachAwait Small 141.547 ns 1.6027 ns 1.4992 ns 142.409 ns 20.35x slower 0.21x 4 0.0353 592 B NA
Publish_Notification_Baseline MultiHandlersSync Scoped ForeachAwait Large 7.023 ns 0.1124 ns 0.1051 ns 6.960 ns baseline 1 - - NA
Publish_Notification_Mediator MultiHandlersSync Scoped ForeachAwait Large 62.118 ns 0.7257 ns 0.6789 ns 62.610 ns 8.85x slower 0.16x 2 - - NA
Publish_Notification_IMediator MultiHandlersSync Scoped ForeachAwait Large 68.120 ns 0.6953 ns 0.6503 ns 67.692 ns 9.70x slower 0.17x 3 - - NA
Publish_Notification_MediatR MultiHandlersSync Scoped ForeachAwait Large 160.565 ns 2.5100 ns 2.3479 ns 159.687 ns 22.87x slower 0.46x 4 0.0353 592 B NA
Publish_Notification_Baseline MultiHandlersSync Scoped TaskWhenAll Small 7.126 ns 0.1171 ns 0.1096 ns 7.189 ns baseline 1 - - NA
Publish_Notification_Mediator MultiHandlersSync Scoped TaskWhenAll Small 50.318 ns 0.5249 ns 0.4910 ns 50.002 ns 7.06x slower 0.12x 2 - - NA
Publish_Notification_IMediator MultiHandlersSync Scoped TaskWhenAll Small 56.241 ns 0.9910 ns 0.9270 ns 55.777 ns 7.89x slower 0.17x 3 - - NA
Publish_Notification_MediatR MultiHandlersSync Scoped TaskWhenAll Small 136.409 ns 2.6986 ns 2.5243 ns 135.232 ns 19.15x slower 0.45x 4 0.0353 592 B NA
Publish_Notification_Baseline MultiHandlersSync Scoped TaskWhenAll Large 6.727 ns 0.1078 ns 0.1008 ns 6.660 ns baseline 1 - - NA
Publish_Notification_Mediator MultiHandlersSync Scoped TaskWhenAll Large 68.484 ns 0.4646 ns 0.3880 ns 68.699 ns 10.18x slower 0.16x 2 - - NA
Publish_Notification_IMediator MultiHandlersSync Scoped TaskWhenAll Large 69.666 ns 0.6765 ns 0.6328 ns 70.166 ns 10.36x slower 0.17x 2 - - NA
Publish_Notification_MediatR MultiHandlersSync Scoped TaskWhenAll Large 149.647 ns 1.7746 ns 1.6600 ns 149.078 ns 22.25x slower 0.40x 3 0.0353 592 B NA
Publish_Notification_Baseline MultiHandlersSync Singleton ForeachAwait Small 6.643 ns 0.0105 ns 0.0082 ns 6.640 ns baseline 1 - - NA
Publish_Notification_Mediator MultiHandlersSync Singleton ForeachAwait Small 18.056 ns 0.1880 ns 0.1759 ns 17.999 ns 2.72x slower 0.03x 2 - - NA
Publish_Notification_IMediator MultiHandlersSync Singleton ForeachAwait Small 24.050 ns 0.3015 ns 0.2820 ns 24.032 ns 3.62x slower 0.04x 3 - - NA
Publish_Notification_MediatR MultiHandlersSync Singleton ForeachAwait Small 181.362 ns 0.9346 ns 0.8742 ns 181.128 ns 27.30x slower 0.13x 4 0.0353 592 B NA
Publish_Notification_Baseline MultiHandlersSync Singleton ForeachAwait Large 6.766 ns 0.1133 ns 0.1060 ns 6.683 ns baseline 1 - - NA
Publish_Notification_Mediator MultiHandlersSync Singleton ForeachAwait Large 19.285 ns 0.0209 ns 0.0175 ns 19.288 ns 2.85x slower 0.04x 2 - - NA
Publish_Notification_IMediator MultiHandlersSync Singleton ForeachAwait Large 34.136 ns 0.4930 ns 0.4612 ns 33.958 ns 5.05x slower 0.10x 3 - - NA
Publish_Notification_MediatR MultiHandlersSync Singleton ForeachAwait Large 181.660 ns 2.2391 ns 2.0945 ns 182.740 ns 26.85x slower 0.50x 4 0.0353 592 B NA
Publish_Notification_Baseline MultiHandlersSync Singleton TaskWhenAll Small 7.121 ns 0.1189 ns 0.1113 ns 7.209 ns baseline 1 - - NA
Publish_Notification_Mediator MultiHandlersSync Singleton TaskWhenAll Small 17.373 ns 0.1970 ns 0.1843 ns 17.405 ns 2.44x slower 0.04x 2 - - NA
Publish_Notification_IMediator MultiHandlersSync Singleton TaskWhenAll Small 24.852 ns 0.3209 ns 0.3002 ns 24.924 ns 3.49x slower 0.07x 3 - - NA
Publish_Notification_MediatR MultiHandlersSync Singleton TaskWhenAll Small 138.806 ns 1.9621 ns 1.8354 ns 138.193 ns 19.50x slower 0.39x 4 0.0353 592 B NA
Publish_Notification_Baseline MultiHandlersSync Singleton TaskWhenAll Large 7.445 ns 0.0162 ns 0.0135 ns 7.450 ns baseline 1 - - NA
Publish_Notification_Mediator MultiHandlersSync Singleton TaskWhenAll Large 18.284 ns 0.0216 ns 0.0180 ns 18.275 ns 2.46x slower 0.00x 2 - - NA
Publish_Notification_IMediator MultiHandlersSync Singleton TaskWhenAll Large 34.785 ns 0.4378 ns 0.4095 ns 34.763 ns 4.67x slower 0.05x 3 - - NA
Publish_Notification_MediatR MultiHandlersSync Singleton TaskWhenAll Large 197.717 ns 2.8380 ns 2.6547 ns 196.325 ns 26.56x slower 0.35x 4 0.0353 592 B NA
Publish_Notification_Baseline MultiHandlersSync Transient ForeachAwait Small 6.755 ns 0.1079 ns 0.1009 ns 6.703 ns baseline 1 - - NA
Publish_Notification_Mediator MultiHandlersSync Transient ForeachAwait Small 148.010 ns 2.0268 ns 1.8959 ns 147.099 ns 21.92x slower 0.42x 2 0.0072 120 B NA
Publish_Notification_IMediator MultiHandlersSync Transient ForeachAwait Small 152.176 ns 1.6868 ns 1.5778 ns 152.224 ns 22.53x slower 0.39x 2 0.0072 120 B NA
Publish_Notification_MediatR MultiHandlersSync Transient ForeachAwait Small 183.120 ns 2.8018 ns 2.6208 ns 182.043 ns 27.12x slower 0.54x 3 0.0353 592 B NA
Publish_Notification_Baseline MultiHandlersSync Transient ForeachAwait Large 6.806 ns 0.1060 ns 0.0992 ns 6.881 ns baseline 1 - - NA
Publish_Notification_MediatR MultiHandlersSync Transient ForeachAwait Large 145.327 ns 1.8746 ns 1.7535 ns 146.411 ns 21.36x slower 0.39x 2 0.0353 592 B NA
Publish_Notification_Mediator MultiHandlersSync Transient ForeachAwait Large 164.156 ns 1.0922 ns 1.0216 ns 163.394 ns 24.12x slower 0.37x 3 0.0072 120 B NA
Publish_Notification_IMediator MultiHandlersSync Transient ForeachAwait Large 164.801 ns 0.0822 ns 0.0642 ns 164.782 ns 24.22x slower 0.34x 3 0.0072 120 B NA
Publish_Notification_Baseline MultiHandlersSync Transient TaskWhenAll Small 6.735 ns 0.1133 ns 0.1060 ns 6.663 ns baseline 1 - - NA
Publish_Notification_Mediator MultiHandlersSync Transient TaskWhenAll Small 145.056 ns 2.1155 ns 1.9788 ns 144.081 ns 21.54x slower 0.43x 2 0.0072 120 B NA
Publish_Notification_MediatR MultiHandlersSync Transient TaskWhenAll Small 156.291 ns 2.2404 ns 2.0957 ns 155.175 ns 23.21x slower 0.46x 3 0.0353 592 B NA
Publish_Notification_IMediator MultiHandlersSync Transient TaskWhenAll Small 164.463 ns 2.0268 ns 1.8959 ns 163.764 ns 24.42x slower 0.46x 4 0.0072 120 B NA
Publish_Notification_Baseline MultiHandlersSync Transient TaskWhenAll Large 6.665 ns 0.0041 ns 0.0034 ns 6.665 ns baseline 1 - - NA
Publish_Notification_MediatR MultiHandlersSync Transient TaskWhenAll Large 134.750 ns 1.0166 ns 0.9509 ns 134.449 ns 20.22x slower 0.14x 2 0.0353 592 B NA
Publish_Notification_IMediator MultiHandlersSync Transient TaskWhenAll Large 168.887 ns 2.0423 ns 1.9104 ns 167.870 ns 25.34x slower 0.28x 3 0.0072 120 B NA
Publish_Notification_Mediator MultiHandlersSync Transient TaskWhenAll Large 170.440 ns 1.9916 ns 1.8629 ns 169.559 ns 25.57x slower 0.27x 3 0.0072 120 B NA
Publish_Notification_Baseline MultiHandlersAsync Scoped ForeachAwait Small 1,354.528 ns 9.4207 ns 8.8121 ns 1,353.903 ns baseline 1 0.0229 400 B
Publish_Notification_Mediator MultiHandlersAsync Scoped ForeachAwait Small 1,427.414 ns 9.3329 ns 8.7300 ns 1,427.854 ns 1.05x slower 0.01x 2 0.0267 448 B 1.12x more
Publish_Notification_IMediator MultiHandlersAsync Scoped ForeachAwait Small 1,453.941 ns 5.2751 ns 4.9344 ns 1,454.089 ns 1.07x slower 0.01x 2 0.0267 448 B 1.12x more
Publish_Notification_MediatR MultiHandlersAsync Scoped ForeachAwait Small 1,468.739 ns 5.5614 ns 5.2021 ns 1,468.785 ns 1.08x slower 0.01x 2 0.0610 1016 B 2.54x more
Publish_Notification_Baseline MultiHandlersAsync Scoped ForeachAwait Large 1,379.052 ns 7.6385 ns 7.1451 ns 1,377.399 ns baseline 1 0.0229 400 B
Publish_Notification_MediatR MultiHandlersAsync Scoped ForeachAwait Large 1,450.151 ns 6.2894 ns 5.8831 ns 1,451.570 ns 1.05x slower 0.01x 2 0.0610 1016 B 2.54x more
Publish_Notification_IMediator MultiHandlersAsync Scoped ForeachAwait Large 1,474.969 ns 10.1176 ns 8.9690 ns 1,471.535 ns 1.07x slower 0.01x 2 0.0267 448 B 1.12x more
Publish_Notification_Mediator MultiHandlersAsync Scoped ForeachAwait Large 1,475.282 ns 8.2515 ns 7.7185 ns 1,475.982 ns 1.07x slower 0.01x 2 0.0267 448 B 1.12x more
Publish_Notification_Mediator MultiHandlersAsync Scoped TaskWhenAll Small 1,101.589 ns 4.7438 ns 3.9613 ns 1,101.849 ns 1.25x faster 0.01x 1 0.0229 390 B 1.03x less
Publish_Notification_IMediator MultiHandlersAsync Scoped TaskWhenAll Small 1,108.025 ns 4.6349 ns 3.8703 ns 1,108.218 ns 1.24x faster 0.01x 1 0.0229 388 B 1.03x less
Publish_Notification_Baseline MultiHandlersAsync Scoped TaskWhenAll Small 1,376.899 ns 12.4064 ns 10.9979 ns 1,374.960 ns baseline 2 0.0229 400 B
Publish_Notification_MediatR MultiHandlersAsync Scoped TaskWhenAll Small 1,475.407 ns 6.1746 ns 5.7758 ns 1,475.050 ns 1.07x slower 0.01x 3 0.0610 1016 B 2.54x more
Publish_Notification_Mediator MultiHandlersAsync Scoped TaskWhenAll Large 1,100.920 ns 6.8553 ns 5.7245 ns 1,099.851 ns 1.24x faster 0.01x 1 0.0229 391 B 1.02x less
Publish_Notification_IMediator MultiHandlersAsync Scoped TaskWhenAll Large 1,114.367 ns 5.8687 ns 5.4896 ns 1,113.742 ns 1.22x faster 0.01x 1 0.0229 387 B 1.03x less
Publish_Notification_Baseline MultiHandlersAsync Scoped TaskWhenAll Large 1,363.987 ns 3.9884 ns 3.5356 ns 1,363.462 ns baseline 2 0.0229 400 B
Publish_Notification_MediatR MultiHandlersAsync Scoped TaskWhenAll Large 1,489.596 ns 6.8064 ns 6.3667 ns 1,490.541 ns 1.09x slower 0.01x 3 0.0610 1016 B 2.54x more
Publish_Notification_Baseline MultiHandlersAsync Singleton ForeachAwait Small 1,350.982 ns 6.6985 ns 5.9380 ns 1,350.484 ns baseline 1 0.0229 400 B
Publish_Notification_IMediator MultiHandlersAsync Singleton ForeachAwait Small 1,431.380 ns 8.8678 ns 8.2949 ns 1,434.044 ns 1.06x slower 0.01x 2 0.0267 448 B 1.12x more
Publish_Notification_MediatR MultiHandlersAsync Singleton ForeachAwait Small 1,459.801 ns 5.0341 ns 4.4626 ns 1,459.906 ns 1.08x slower 0.01x 2 0.0610 1016 B 2.54x more
Publish_Notification_Mediator MultiHandlersAsync Singleton ForeachAwait Small 1,488.810 ns 5.5894 ns 4.9548 ns 1,488.764 ns 1.10x slower 0.01x 2 0.0267 448 B 1.12x more
Publish_Notification_Baseline MultiHandlersAsync Singleton ForeachAwait Large 1,357.382 ns 8.6725 ns 8.1123 ns 1,357.972 ns baseline 1 0.0229 400 B
Publish_Notification_MediatR MultiHandlersAsync Singleton ForeachAwait Large 1,432.556 ns 9.5850 ns 8.9659 ns 1,431.358 ns 1.06x slower 0.01x 2 0.0610 1016 B 2.54x more
Publish_Notification_IMediator MultiHandlersAsync Singleton ForeachAwait Large 1,443.904 ns 13.7568 ns 12.8682 ns 1,444.439 ns 1.06x slower 0.01x 2 0.0267 448 B 1.12x more
Publish_Notification_Mediator MultiHandlersAsync Singleton ForeachAwait Large 1,456.085 ns 10.6338 ns 9.9468 ns 1,455.187 ns 1.07x slower 0.01x 2 0.0267 448 B 1.12x more
Publish_Notification_IMediator MultiHandlersAsync Singleton TaskWhenAll Small 1,109.532 ns 8.0329 ns 7.5140 ns 1,108.076 ns 1.22x faster 0.01x 1 0.0229 389 B 1.03x less
Publish_Notification_Mediator MultiHandlersAsync Singleton TaskWhenAll Small 1,122.842 ns 11.5114 ns 10.7678 ns 1,121.367 ns 1.20x faster 0.01x 1 0.0229 390 B 1.03x less
Publish_Notification_Baseline MultiHandlersAsync Singleton TaskWhenAll Small 1,349.364 ns 8.4429 ns 7.8975 ns 1,348.022 ns baseline 2 0.0229 400 B
Publish_Notification_MediatR MultiHandlersAsync Singleton TaskWhenAll Small 1,457.171 ns 6.6569 ns 6.2268 ns 1,458.352 ns 1.08x slower 0.01x 3 0.0610 1016 B 2.54x more
Publish_Notification_IMediator MultiHandlersAsync Singleton TaskWhenAll Large 1,113.255 ns 6.6730 ns 6.2419 ns 1,112.208 ns 1.22x faster 0.01x 1 0.0229 387 B 1.03x less
Publish_Notification_Mediator MultiHandlersAsync Singleton TaskWhenAll Large 1,123.589 ns 7.2003 ns 6.7351 ns 1,121.830 ns 1.21x faster 0.01x 1 0.0229 389 B 1.03x less
Publish_Notification_Baseline MultiHandlersAsync Singleton TaskWhenAll Large 1,361.744 ns 3.6281 ns 3.2162 ns 1,361.465 ns baseline 2 0.0229 400 B
Publish_Notification_MediatR MultiHandlersAsync Singleton TaskWhenAll Large 1,459.539 ns 6.9633 ns 6.5135 ns 1,459.934 ns 1.07x slower 0.01x 3 0.0610 1016 B 2.54x more
Publish_Notification_Baseline MultiHandlersAsync Transient ForeachAwait Small 1,360.576 ns 11.3599 ns 10.6260 ns 1,361.548 ns baseline 1 0.0229 400 B
Publish_Notification_MediatR MultiHandlersAsync Transient ForeachAwait Small 1,472.921 ns 6.6100 ns 6.1830 ns 1,475.363 ns 1.08x slower 0.01x 2 0.0610 1016 B 2.54x more
Publish_Notification_Mediator MultiHandlersAsync Transient ForeachAwait Small 1,531.177 ns 14.1508 ns 13.2367 ns 1,533.972 ns 1.13x slower 0.01x 3 0.0324 568 B 1.42x more
Publish_Notification_IMediator MultiHandlersAsync Transient ForeachAwait Small 1,535.647 ns 11.3281 ns 10.5963 ns 1,535.608 ns 1.13x slower 0.01x 3 0.0324 568 B 1.42x more
Publish_Notification_Baseline MultiHandlersAsync Transient ForeachAwait Large 1,361.203 ns 8.0343 ns 7.5153 ns 1,359.369 ns baseline 1 0.0229 400 B
Publish_Notification_MediatR MultiHandlersAsync Transient ForeachAwait Large 1,470.910 ns 5.7379 ns 5.0865 ns 1,470.681 ns 1.08x slower 0.01x 2 0.0610 1016 B 2.54x more
Publish_Notification_Mediator MultiHandlersAsync Transient ForeachAwait Large 1,554.203 ns 11.1376 ns 10.4181 ns 1,554.230 ns 1.14x slower 0.01x 3 0.0324 568 B 1.42x more
Publish_Notification_IMediator MultiHandlersAsync Transient ForeachAwait Large 1,561.422 ns 10.8767 ns 9.6420 ns 1,561.401 ns 1.15x slower 0.01x 3 0.0324 568 B 1.42x more
Publish_Notification_IMediator MultiHandlersAsync Transient TaskWhenAll Small 1,160.871 ns 11.1609 ns 10.4399 ns 1,158.965 ns 1.20x faster 0.01x 1 0.0305 512 B 1.28x more
Publish_Notification_Mediator MultiHandlersAsync Transient TaskWhenAll Small 1,168.815 ns 5.5072 ns 4.5988 ns 1,168.810 ns 1.19x faster 0.01x 1 0.0305 513 B 1.28x more
Publish_Notification_Baseline MultiHandlersAsync Transient TaskWhenAll Small 1,393.199 ns 5.4806 ns 4.5765 ns 1,393.044 ns baseline 2 0.0229 400 B
Publish_Notification_MediatR MultiHandlersAsync Transient TaskWhenAll Small 1,482.637 ns 6.9502 ns 6.5012 ns 1,482.997 ns 1.06x slower 0.01x 3 0.0610 1016 B 2.54x more
Publish_Notification_Mediator MultiHandlersAsync Transient TaskWhenAll Large 1,160.911 ns 8.1053 ns 7.5817 ns 1,160.643 ns 1.19x faster 0.01x 1 0.0305 512 B 1.28x more
Publish_Notification_IMediator MultiHandlersAsync Transient TaskWhenAll Large 1,167.397 ns 7.0012 ns 6.5489 ns 1,168.061 ns 1.18x faster 0.01x 1 0.0305 512 B 1.28x more
Publish_Notification_Baseline MultiHandlersAsync Transient TaskWhenAll Large 1,382.508 ns 11.2717 ns 9.9921 ns 1,378.656 ns baseline 2 0.0229 400 B
Publish_Notification_MediatR MultiHandlersAsync Transient TaskWhenAll Large 1,478.223 ns 7.0994 ns 6.2935 ns 1,478.213 ns 1.07x slower 0.01x 3 0.0610 1016 B 2.54x more

Streaming

An IAsyncEnumerable doing 3 iterations, being fully consumed.


BenchmarkDotNet v0.14.0, Windows 11 (10.0.26100.3775)
AMD Ryzen 5 5600X, 1 CPU, 12 logical and 6 physical cores
.NET SDK 8.0.408
  [Host]          : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Scoped/False    : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Scoped/True     : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Singleton/False : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Singleton/True  : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Transient/False : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  Transient/True  : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
Method ServiceLifetime Project type Mean Error StdDev Median Ratio RatioSD Rank Gen0 Allocated Alloc Ratio
Stream_Baseline Scoped Small 89.85 ns 0.865 ns 0.809 ns 89.35 ns baseline 1 0.0052 88 B
Stream_Mediator Scoped Small 146.14 ns 1.275 ns 1.192 ns 145.42 ns 1.63x slower 0.02x 2 0.0091 152 B 1.73x more
Stream_IMediator Scoped Small 150.43 ns 0.213 ns 0.166 ns 150.41 ns 1.67x slower 0.01x 2 0.0091 152 B 1.73x more
Stream_MediatR Scoped Small 332.77 ns 1.076 ns 0.840 ns 332.62 ns 3.70x slower 0.03x 3 0.0315 528 B 6.00x more
Stream_Baseline Scoped Large 87.07 ns 0.753 ns 0.705 ns 86.62 ns baseline 1 0.0052 88 B
Stream_Mediator Scoped Large 152.77 ns 1.713 ns 1.602 ns 152.03 ns 1.75x slower 0.02x 2 0.0091 152 B 1.73x more
Stream_IMediator Scoped Large 178.95 ns 2.468 ns 2.309 ns 178.38 ns 2.06x slower 0.03x 3 0.0091 152 B 1.73x more
Stream_MediatR Scoped Large 330.62 ns 3.157 ns 2.953 ns 328.81 ns 3.80x slower 0.04x 4 0.0315 528 B 6.00x more
Stream_Baseline Singleton Small 87.71 ns 0.816 ns 0.763 ns 88.12 ns baseline 1 0.0052 88 B
Stream_Mediator Singleton Small 91.15 ns 0.962 ns 0.900 ns 90.47 ns 1.04x slower 0.01x 2 0.0052 88 B 1.00x more
Stream_IMediator Singleton Small 92.16 ns 1.081 ns 1.011 ns 92.00 ns 1.05x slower 0.01x 2 0.0052 88 B 1.00x more
Stream_MediatR Singleton Small 342.91 ns 3.834 ns 3.586 ns 344.55 ns 3.91x slower 0.05x 3 0.0315 528 B 6.00x more
Stream_Mediator Singleton Large 88.27 ns 1.241 ns 1.161 ns 87.67 ns 1.01x faster 0.02x 1 0.0052 88 B 1.00x more
Stream_Baseline Singleton Large 88.82 ns 1.230 ns 1.151 ns 88.88 ns baseline 1 0.0052 88 B
Stream_IMediator Singleton Large 107.42 ns 0.954 ns 0.893 ns 107.87 ns 1.21x slower 0.02x 2 0.0052 88 B 1.00x more
Stream_MediatR Singleton Large 332.35 ns 4.381 ns 4.098 ns 331.55 ns 3.74x slower 0.06x 3 0.0315 528 B 6.00x more
Stream_Baseline Transient Small 88.37 ns 0.884 ns 0.827 ns 87.79 ns baseline 1 0.0052 88 B
Stream_Mediator Transient Small 144.20 ns 1.549 ns 1.449 ns 144.62 ns 1.63x slower 0.02x 2 0.0105 176 B 2.00x more
Stream_IMediator Transient Small 144.95 ns 2.670 ns 2.497 ns 147.01 ns 1.64x slower 0.03x 2 0.0105 176 B 2.00x more
Stream_MediatR Transient Small 333.76 ns 0.590 ns 0.493 ns 333.87 ns 3.78x slower 0.03x 3 0.0315 528 B 6.00x more
Stream_Baseline Transient Large 89.17 ns 1.076 ns 1.006 ns 89.03 ns baseline 1 0.0052 88 B
Stream_Mediator Transient Large 144.92 ns 2.628 ns 2.458 ns 143.38 ns 1.63x slower 0.03x 2 0.0105 176 B 2.00x more
Stream_IMediator Transient Large 151.83 ns 0.145 ns 0.121 ns 151.82 ns 1.70x slower 0.02x 3 0.0105 176 B 2.00x more
Stream_MediatR Transient Large 336.42 ns 5.135 ns 4.804 ns 336.45 ns 3.77x slower 0.07x 4 0.0315 528 B 6.00x more

Source generation


BenchmarkDotNet v0.14.0, Windows 11 (10.0.26100.3775)
AMD Ryzen 5 5600X, 1 CPU, 12 logical and 6 physical cores
.NET SDK 8.0.408
  [Host]     : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
  DefaultJob : .NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2
Method ProjectType ServiceLifetime Mean Error StdDev Gen0 Gen1 Gen2 Allocated
Cached Small Scoped 3.130 ms 0.0050 ms 0.0045 ms 93.7500 31.2500 - 1.81 MB
Cached Small Transient 3.168 ms 0.0195 ms 0.0173 ms 109.3750 15.6250 - 1.81 MB
Cached Small Singleton 3.187 ms 0.0102 ms 0.0085 ms 93.7500 31.2500 - 1.81 MB
Cold Small Transient 6.233 ms 0.0311 ms 0.0291 ms 210.9375 70.3125 15.6250 3.65 MB
Cold Small Scoped 6.249 ms 0.0646 ms 0.0604 ms 210.9375 101.5625 15.6250 3.65 MB
Cold Small Singleton 6.334 ms 0.0841 ms 0.0787 ms 210.9375 62.5000 15.6250 3.65 MB
Cached Large Scoped 45.282 ms 0.8975 ms 0.9603 ms 500.0000 - - 12 MB
Cached Large Transient 45.604 ms 0.9070 ms 1.0081 ms 500.0000 - - 12.03 MB
Cached Large Singleton 45.977 ms 0.9053 ms 1.1450 ms 500.0000 - - 12.04 MB
Cold Large Scoped 60.706 ms 1.1644 ms 1.4726 ms 1000.0000 500.0000 - 23.71 MB
Cold Large Transient 61.231 ms 1.1778 ms 0.9835 ms 1000.0000 500.0000 - 23.75 MB
Cold Large Singleton 64.621 ms 1.2744 ms 2.7158 ms 1000.0000 500.0000 - 23.67 MB