add cpu profiling endpoint

logic/proc.go

@@ -0,0 +1,23 @@
+package logic
+
+import (
+	"log"
+	"os"
+	"runtime/pprof"
+)
+
+func StartCPUProfiling() *os.File {
+	f, err := os.OpenFile("/root/data/cpu.prof", os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0755)
+	if err != nil {
+		log.Fatal("could not create CPU profile: ", err)
+	}
+	if err := pprof.StartCPUProfile(f); err != nil {
+		log.Fatal("could not start CPU profile: ", err)
+	}
+	return f
+}
+
+func StopCPUProfiling(f *os.File) {
+	pprof.StopCPUProfile()
+	f.Close()
+}