This is repo with two grpc servers for compare performance spring vs vanilla grpc servers

Vanilla package based on pure grpc and netty server.

Spring package based on springboot with grpc-spring-boot-starter and reactor-grpc-stub. I tasted it without spring reactor result was same

Jmh package contains simple Java Microbenchmark Harness application for measuring grpc speed. But i will use ghz.

How to run

1. start grpc servers from VanillaServiceLauncher.java or/and SpringbootGrpcServer.java
2. start behch.sh with scope vanilla/spring ./behch.sh vanilla
3. If you want to restrict benchmark by resources just put the second param ./behch.sh vanilla 1. In this case benchmark will start with use 1 cpu and 1 concurrency

My results:

1. Vanilla:

Run ghz in scope vanilla with port 62004 ---- 
Benchmark will be stopped after 1 minute ---- 

Summary:
  Name:         vanilla
  Count:        974523
  Total:        60.00 s
  Slowest:      60.05 ms
  Fastest:      0.04 ms
  Average:      0.05 ms
  Requests/sec: 16241.78

Response time histogram:
  0.036 [1]     |
  6.037 [974520]        |∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
  12.039 [0]    |
  18.040 [0]    |
  24.042 [0]    |
  30.043 [0]    |
  36.045 [0]    |
  42.046 [0]    |
  48.048 [0]    |
  54.049 [0]    |
  60.050 [1]    |

Latency distribution:
  10 % in 0.04 ms 
  25 % in 0.04 ms 
  50 % in 0.04 ms 
  75 % in 0.05 ms 
  90 % in 0.05 ms 
  95 % in 0.06 ms 
  99 % in 0.09 ms 

Status code distribution:
  [OK]            974522 responses   
  [Unavailable]   1 responses        

Error distribution:
  [1]   rpc error: code = Unavailable desc = transport is closing 

2. Spring:

Run ghz in scope spring with port 61004 ---- 
Benchmark will be stopped after 1 minute ---- 

Summary:
  Name:         spring
  Count:        625721
  Total:        60.00 s
  Slowest:      75.30 ms
  Fastest:      0.06 ms
  Average:      0.08 ms
  Requests/sec: 10428.52

Response time histogram:
  0.064 [1]     |
  7.588 [625719]        |∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
  15.111 [0]    |
  22.635 [0]    |
  30.158 [0]    |
  37.682 [0]    |
  45.206 [0]    |
  52.729 [0]    |
  60.253 [0]    |
  67.776 [0]    |
  75.300 [1]    |

Latency distribution:
  10 % in 0.07 ms 
  25 % in 0.07 ms 
  50 % in 0.08 ms 
  75 % in 0.08 ms 
  90 % in 0.10 ms 
  95 % in 0.10 ms 
  99 % in 0.12 ms 

Status code distribution:
  [OK]   625721 responses