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cmd/swarm/swarm-smoke: sliding window test (ethereum#18967)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| // 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/>. | ||
|
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| package main | ||
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||
| import ( | ||
| "crypto/md5" | ||
| crand "crypto/rand" | ||
| "fmt" | ||
| "io" | ||
| "math/rand" | ||
| "time" | ||
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| "github.com/ethereum/go-ethereum/log" | ||
| "github.com/ethereum/go-ethereum/metrics" | ||
| "github.com/pborman/uuid" | ||
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| cli "gopkg.in/urfave/cli.v1" | ||
| ) | ||
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| var seed = time.Now().UTC().UnixNano() | ||
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| func init() { | ||
| rand.Seed(seed) | ||
| } | ||
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| type uploadResult struct { | ||
| hash string | ||
| digest []byte | ||
| } | ||
|
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| func slidingWindow(c *cli.Context) error { | ||
| defer func(now time.Time) { | ||
| totalTime := time.Since(now) | ||
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| log.Info("total time", "time", totalTime) | ||
| metrics.GetOrRegisterCounter("sliding-window.total-time", nil).Inc(int64(totalTime)) | ||
| }(time.Now()) | ||
|
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| generateEndpoints(scheme, cluster, appName, from, to) | ||
| hashes := []uploadResult{} //swarm hashes of the uploads | ||
| nodes := to - from | ||
| const iterationTimeout = 30 * time.Second | ||
| log.Info("sliding window test started", "nodes", nodes, "filesize(kb)", filesize, "timeout", timeout) | ||
| uploadedBytes := 0 | ||
| networkDepth := 0 | ||
| errored := false | ||
|
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| outer: | ||
| for { | ||
| log.Info("uploading to "+endpoints[0]+" and syncing", "seed", seed) | ||
|
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| h := md5.New() | ||
| r := io.TeeReader(io.LimitReader(crand.Reader, int64(filesize*1000)), h) | ||
| t1 := time.Now() | ||
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| hash, err := upload(r, filesize*1000, endpoints[0]) | ||
| if err != nil { | ||
| log.Error(err.Error()) | ||
| return err | ||
| } | ||
|
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| metrics.GetOrRegisterResettingTimer("sliding-window.upload-time", nil).UpdateSince(t1) | ||
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| fhash := h.Sum(nil) | ||
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| log.Info("uploaded successfully", "hash", hash, "digest", fmt.Sprintf("%x", fhash), "sleeping", syncDelay) | ||
| hashes = append(hashes, uploadResult{hash: hash, digest: fhash}) | ||
| time.Sleep(time.Duration(syncDelay) * time.Second) | ||
| uploadedBytes += filesize * 1000 | ||
|
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| for i, v := range hashes { | ||
| timeout := time.After(time.Duration(timeout) * time.Second) | ||
| errored = false | ||
|
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| inner: | ||
| for { | ||
| select { | ||
| case <-timeout: | ||
| errored = true | ||
| log.Error("error retrieving hash. timeout", "hash idx", i, "err", err) | ||
| metrics.GetOrRegisterCounter("sliding-window.single.error", nil).Inc(1) | ||
| break inner | ||
| default: | ||
| randIndex := 1 + rand.Intn(len(endpoints)-1) | ||
| ruid := uuid.New()[:8] | ||
| start := time.Now() | ||
| err := fetch(v.hash, endpoints[randIndex], v.digest, ruid) | ||
| if err != nil { | ||
| continue inner | ||
| } | ||
| metrics.GetOrRegisterResettingTimer("sliding-window.single.fetch-time", nil).UpdateSince(start) | ||
| break inner | ||
| } | ||
| } | ||
|
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| if errored { | ||
| break outer | ||
| } | ||
| networkDepth = i | ||
| metrics.GetOrRegisterGauge("sliding-window.network-depth", nil).Update(int64(networkDepth)) | ||
| } | ||
| } | ||
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| log.Info("sliding window test finished", "errored?", errored, "networkDepth", networkDepth, "networkDepth(kb)", networkDepth*filesize) | ||
| log.Info("stats", "uploadedFiles", len(hashes), "uploadedKb", uploadedBytes/1000, "filesizeKb", filesize) | ||
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| return nil | ||
| } |
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