From 257bfff316e4efb8952fbeb67c91f86af579cb0a Mon Sep 17 00:00:00 2001
From: holisticode <holistic.computing@gmail.com>
Date: Thu, 17 Jan 2019 11:25:27 -0500
Subject: [PATCH] Upload speed (#18442)

---
 cmd/swarm/swarm-smoke/main.go         |  6 ++
 cmd/swarm/swarm-smoke/upload_speed.go | 96 +++++++++++++++++++++++++++
 2 files changed, 102 insertions(+)
 create mode 100644 cmd/swarm/swarm-smoke/upload_speed.go

diff --git a/cmd/swarm/swarm-smoke/main.go b/cmd/swarm/swarm-smoke/main.go
index 66cecdc5c7..f7f358ef15 100644
--- a/cmd/swarm/swarm-smoke/main.go
+++ b/cmd/swarm/swarm-smoke/main.go
@@ -148,6 +148,12 @@ func main() {
 			Usage:   "feed update generate, upload and sync",
 			Action:  cliFeedUploadAndSync,
 		},
+		{
+			Name:    "upload_speed",
+			Aliases: []string{"u"},
+			Usage:   "measure upload speed",
+			Action:  cliUploadSpeed,
+		},
 	}
 
 	sort.Sort(cli.FlagsByName(app.Flags))
diff --git a/cmd/swarm/swarm-smoke/upload_speed.go b/cmd/swarm/swarm-smoke/upload_speed.go
new file mode 100644
index 0000000000..d55b5fe8ef
--- /dev/null
+++ b/cmd/swarm/swarm-smoke/upload_speed.go
@@ -0,0 +1,96 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/metrics"
+	"github.com/ethereum/go-ethereum/swarm/testutil"
+
+	cli "gopkg.in/urfave/cli.v1"
+)
+
+var endpoint string
+
+//just use the first endpoint
+func generateEndpoint(scheme string, cluster string, app string, from int) {
+	if cluster == "prod" {
+		endpoint = fmt.Sprintf("%s://%v.swarm-gateways.net", scheme, from)
+	} else {
+		endpoint = fmt.Sprintf("%s://%s-%v-%s.stg.swarm-gateways.net", scheme, app, from, cluster)
+	}
+}
+
+func cliUploadSpeed(c *cli.Context) error {
+	log.PrintOrigins(true)
+	log.Root().SetHandler(log.LvlFilterHandler(log.Lvl(verbosity), log.StreamHandler(os.Stdout, log.TerminalFormat(true))))
+
+	metrics.GetOrRegisterCounter("upload-speed", nil).Inc(1)
+
+	errc := make(chan error)
+	go func() {
+		errc <- uploadSpeed(c)
+	}()
+
+	select {
+	case err := <-errc:
+		if err != nil {
+			metrics.GetOrRegisterCounter("upload-speed.fail", nil).Inc(1)
+		}
+		return err
+	case <-time.After(time.Duration(timeout) * time.Second):
+		metrics.GetOrRegisterCounter("upload-speed.timeout", nil).Inc(1)
+		return fmt.Errorf("timeout after %v sec", timeout)
+	}
+}
+
+func uploadSpeed(c *cli.Context) error {
+	defer func(now time.Time) {
+		totalTime := time.Since(now)
+
+		log.Info("total time", "time", totalTime, "kb", filesize)
+		metrics.GetOrRegisterCounter("upload-speed.total-time", nil).Inc(int64(totalTime))
+	}(time.Now())
+
+	generateEndpoint(scheme, cluster, appName, from)
+	seed := int(time.Now().UnixNano() / 1e6)
+	log.Info("uploading to "+endpoint, "seed", seed)
+
+	randomBytes := testutil.RandomBytes(seed, filesize*1000)
+
+	t1 := time.Now()
+	hash, err := upload(&randomBytes, endpoint)
+	if err != nil {
+		log.Error(err.Error())
+		return err
+	}
+	metrics.GetOrRegisterCounter("upload-speed.upload-time", nil).Inc(int64(time.Since(t1)))
+
+	fhash, err := digest(bytes.NewReader(randomBytes))
+	if err != nil {
+		log.Error(err.Error())
+		return err
+	}
+
+	log.Info("uploaded successfully", "hash", hash, "digest", fmt.Sprintf("%x", fhash))
+	return nil
+}