chore: benchmark test

Benchmark.md

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+# Benchmark
+
+## Nginx
+
+```bash
+wrk 'http://127.0.0.1:6200/ping' --latency
+
+Running 10s test @ http://127.0.0.1:6200/ping
+ 2 threads and 10 connections
+ Thread Stats   Avg      Stdev     Max   +/- Stdev
+   Latency   140.44us  705.01us  16.07ms   98.80%
+   Req/Sec    65.13k     2.92k   72.33k    85.15%
+ Latency Distribution
+    50%   73.00us
+    75%   80.00us
+    90%   86.00us
+    99%    1.97ms
+ 1309147 requests in 10.10s, 187.27MB read
+Requests/sec: 129597.70
+Transfer/sec:     18.54MB
+```
+
+## Pingap
+
+```bash
+wrk 'http://127.0.0.1:6100/ping' --latency
+
+Running 10s test @ http://127.0.0.1:6100/ping
+  2 threads and 10 connections
+  Thread Stats   Avg      Stdev     Max   +/- Stdev
+    Latency    83.14us   25.54us   1.18ms   82.07%
+    Req/Sec    59.22k     1.13k   62.14k    94.06%
+  Latency Distribution
+     50%   89.00us
+     75%   96.00us
+     90%  103.00us
+     99%  122.00us
+  1190455 requests in 10.10s, 155.54MB read
+Requests/sec: 117876.05
+Transfer/sec:     15.40MB
+```
+
+## Nginx --> Nginx
+
+```bash
+wrk 'http://127.0.0.1:6200/ping' --latency
+
+Running 10s test @ http://127.0.0.1:6200/ping
+  2 threads and 10 connections
+  Thread Stats   Avg      Stdev     Max   +/- Stdev
+    Latency   287.76us    2.00ms  43.08ms   98.30%
+    Req/Sec    64.58k     4.49k   79.88k    87.13%
+  Latency Distribution
+     50%   73.00us
+     75%   81.00us
+     90%   88.00us
+     99%    8.16ms
+  1298148 requests in 10.10s, 185.70MB read
+Requests/sec: 128518.38
+Transfer/sec:     18.38MB
+```
+
+
+## Pingap --> Nginx
+
+```bash
+wrk 'http://127.0.0.1:6101/ping' --latency
+```

benches/bench.toml

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+[basic]
+
+[upstreams.backend]
+addrs = ["127.0.0.1:6200"]
+
+[locations.bench]
+plugins = ["pingap:ping"]
+
+[locations.pingap-nginx]
+upstream = "backend"
+
+[servers.bench]
+addr = "127.0.0.1:6100"
+locations = ["bench"]
+threads = 1
+
+[servers.pingap-nginx]
+addr = "127.0.0.1:6101"
+locations = ["pingap-nginx"]
+
+[plugins]
+
+[certificates]
+
+[storages]

benches/nginx.conf

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+worker_processes 1;
+
+events {
+    use kqueue;
+    worker_connections 1024;
+}
+
+
+http {
+    include mime.types;
+    default_type application/octet-stream;
+
+    upstream backend {
+        server 127.0.0.1:6200;
+        keepalive 300;
+    }
+
+
+    sendfile on;
+    keepalive_timeout 65;
+    keepalive_requests 1000000;
+    server {
+        listen 6201;
+        #server_name  localhost;
+        #access_log /tmp/access.log access;
+        location / {
+            default_type text/json;
+            proxy_pass http://backend;
+        }
+
+        error_page 500 502 503 504 /50x.html;
+        location = /50x.html {
+            root html;
+        }
+    }
+    server {
+        listen 6200;
+        server_name localhost:6200;
+        #access_log /tmp/access.log access;
+        location / {
+            default_type text/json;
+            return 200 "pong";
+        }
+    }
+}