feat: add pprof

pprof.go

@@ -0,0 +1,14 @@
+// +build pprof
+
+package main
+
+import (
+    _ "net/http/pprof"
+    "net/http"
+)
+
+func init() {
+    go func() {
+        http.ListenAndServe("localhost:8080", nil)
+    }()
+}