first-commit

modules/pprof/pprof.go

@@ -0,0 +1,45 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package pprof
+
+import (
+	"fmt"
+	"os"
+	"runtime"
+	"runtime/pprof"
+
+	"code.gitea.io/gitea/modules/log"
+)
+
+// DumpMemProfileForUsername dumps a memory profile at pprofDataPath as memprofile_<username>_<temporary id>
+func DumpMemProfileForUsername(pprofDataPath, username string) error {
+	f, err := os.CreateTemp(pprofDataPath, fmt.Sprintf("memprofile_%s_", username))
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	runtime.GC() // get up-to-date statistics
+	return pprof.WriteHeapProfile(f)
+}
+
+// DumpCPUProfileForUsername dumps a CPU profile at pprofDataPath as cpuprofile_<username>_<temporary id>
+// the stop function it returns stops, writes and closes the CPU profile file
+func DumpCPUProfileForUsername(pprofDataPath, username string) (func(), error) {
+	f, err := os.CreateTemp(pprofDataPath, fmt.Sprintf("cpuprofile_%s_", username))
+	if err != nil {
+		return nil, err
+	}
+
+	err = pprof.StartCPUProfile(f)
+	if err != nil {
+		log.Fatal("StartCPUProfile: %v", err)
+	}
+	return func() {
+		pprof.StopCPUProfile()
+		err = f.Close()
+		if err != nil {
+			log.Fatal("StopCPUProfile Close: %v", err)
+		}
+	}, nil
+}