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@ -13,9 +13,8 @@ import ( |
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"text/tabwriter" |
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tmtypes "github.com/tendermint/tendermint/types" |
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tmrpc "github.com/tendermint/tendermint/rpc/client" |
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"github.com/tendermint/tmlibs/log" |
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"github.com/tendermint/tools/tm-monitor/monitor" |
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) |
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var version = "0.3.0" |
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@ -23,9 +22,8 @@ var version = "0.3.0" |
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var logger = log.NewNopLogger() |
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type statistics struct { |
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BlockTimeSample metrics.Histogram |
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TxThroughputSample metrics.Histogram |
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BlockLatency metrics.Histogram |
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TxsThroughput metrics.Histogram `json:"txs_per_sec"` |
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BlocksThroughput metrics.Histogram `json:"blocks_per_sec"` |
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} |
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func main() { |
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@ -60,7 +58,7 @@ Examples: |
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if verbose { |
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if outputFormat == "json" { |
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fmt.Println("Verbose mode not supported with json output.") |
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fmt.Fprintln(os.Stderr, "Verbose mode not supported with json output.") |
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os.Exit(1) |
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} |
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// Color errors red
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@ -79,71 +77,91 @@ Examples: |
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endpoints := strings.Split(flag.Arg(0), ",") |
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blockCh := make(chan tmtypes.Header, 100) |
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blockLatencyCh := make(chan float64, 100) |
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client := tmrpc.NewHTTP(endpoints[0], "/websocket") |
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nodes := startNodes(endpoints, blockCh, blockLatencyCh) |
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minHeight := latestBlockHeight(client) |
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logger.Info("Latest block height", "h", minHeight) |
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// record time start
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timeStart := time.Now() |
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logger.Info("Time started", "t", timeStart) |
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transacters := startTransacters(endpoints, connections, txsRate) |
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select { |
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case <-time.After(time.Duration(duration) * time.Second): |
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for _, t := range transacters { |
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t.Stop() |
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} |
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timeStop := time.Now() |
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logger.Info("Time stopped", "t", timeStop) |
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stats := calculateStatistics(client, minHeight, timeStart, timeStop) |
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printStatistics(stats, outputFormat) |
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return |
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} |
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} |
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func latestBlockHeight(client tmrpc.Client) int64 { |
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status, err := client.Status() |
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if err != nil { |
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fmt.Fprintln(os.Stderr, err) |
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os.Exit(1) |
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} |
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return status.SyncInfo.LatestBlockHeight |
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} |
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func calculateStatistics(client tmrpc.Client, minHeight int64, timeStart, timeStop time.Time) *statistics { |
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stats := &statistics{ |
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BlockTimeSample: metrics.NewHistogram(metrics.NewUniformSample(1000)), |
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TxThroughputSample: metrics.NewHistogram(metrics.NewUniformSample(1000)), |
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BlockLatency: metrics.NewHistogram(metrics.NewUniformSample(1000)), |
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BlocksThroughput: metrics.NewHistogram(metrics.NewUniformSample(1000)), |
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TxsThroughput: metrics.NewHistogram(metrics.NewUniformSample(1000)), |
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} |
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lastBlockHeight := int64(-1) |
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durationTimer := time.After(time.Duration(duration) * time.Second) |
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ticker := time.NewTicker(1 * time.Second) |
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var blocks int |
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var txs int64 |
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for { |
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select { |
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case b := <-blockCh: |
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if lastBlockHeight < b.Height { |
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blocks++ |
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txs += b.NumTxs |
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lastBlockHeight = b.Height |
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} |
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case l := <-blockLatencyCh: |
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stats.BlockLatency.Update(int64(l)) |
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case <-ticker.C: |
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stats.BlockTimeSample.Update(int64(blocks)) |
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stats.TxThroughputSample.Update(txs) |
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blocks = 0 |
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txs = 0 |
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case <-durationTimer: |
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for _, t := range transacters { |
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t.Stop() |
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} |
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// get blocks between minHeight and last height
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info, err := client.BlockchainInfo(minHeight, 0) |
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if err != nil { |
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fmt.Fprintln(os.Stderr, err) |
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os.Exit(1) |
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} |
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numBlocksPerSec := make(map[int64]int64) |
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numTxsPerSec := make(map[int64]int64) |
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for _, blockMeta := range info.BlockMetas { |
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// check if block was created before timeStop
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if blockMeta.Header.Time.After(timeStop) { |
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break |
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} |
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printStatistics(stats, outputFormat) |
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sec := secondsSinceTimeStart(timeStart, blockMeta.Header.Time) |
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for _, n := range nodes { |
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n.Stop() |
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} |
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return |
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// increase number of blocks for that second
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if _, ok := numBlocksPerSec[sec]; !ok { |
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numBlocksPerSec[sec] = 0 |
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} |
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numBlocksPerSec[sec]++ |
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// increase number of txs for that second
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if _, ok := numTxsPerSec[sec]; !ok { |
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numTxsPerSec[sec] = 0 |
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} |
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numTxsPerSec[sec] += blockMeta.Header.NumTxs |
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} |
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} |
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func startNodes(endpoints []string, blockCh chan<- tmtypes.Header, blockLatencyCh chan<- float64) []*monitor.Node { |
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nodes := make([]*monitor.Node, len(endpoints)) |
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for _, n := range numBlocksPerSec { |
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stats.BlocksThroughput.Update(n) |
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} |
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for i, e := range endpoints { |
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n := monitor.NewNode(e) |
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n.SetLogger(logger.With("node", e)) |
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n.SendBlocksTo(blockCh) |
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n.SendBlockLatenciesTo(blockLatencyCh) |
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if err := n.Start(); err != nil { |
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fmt.Println(err) |
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os.Exit(1) |
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} |
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nodes[i] = n |
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for _, n := range numTxsPerSec { |
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stats.TxsThroughput.Update(n) |
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} |
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return nodes |
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return stats |
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} |
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func secondsSinceTimeStart(timeStart, timePassed time.Time) int64 { |
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return int64(timePassed.Sub(timeStart).Seconds()) |
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} |
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func startTransacters(endpoints []string, connections int, txsRate int) []*transacter { |
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@ -153,7 +171,7 @@ func startTransacters(endpoints []string, connections int, txsRate int) []*trans |
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t := newTransacter(e, connections, txsRate) |
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t.SetLogger(logger) |
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if err := t.Start(); err != nil { |
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fmt.Println(err) |
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fmt.Fprintln(os.Stderr, err) |
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os.Exit(1) |
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} |
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transacters[i] = t |
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@ -162,47 +180,28 @@ func startTransacters(endpoints []string, connections int, txsRate int) []*trans |
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return transacters |
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} |
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type Results struct { |
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BlockLatencyMean float64 |
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BlockLatencyMax int64 |
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BlockLatencyStdDev float64 |
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BlockTimeMean float64 |
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BlockTimeMax int64 |
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BlockTimeStdDev float64 |
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TxThroughputMean float64 |
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TxThroughputMax int64 |
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TxThroughputStdDev float64 |
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} |
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func printStatistics(stats *statistics, outputFormat string) { |
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if outputFormat == "json" { |
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result, _ := json.Marshal(Results{ |
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stats.BlockLatency.Mean() / 1000000.0, |
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stats.BlockLatency.Max() / 1000000.0, |
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stats.BlockLatency.StdDev() / 1000000.0, |
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stats.BlockTimeSample.Mean(), |
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stats.BlockTimeSample.Max(), |
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stats.BlockTimeSample.StdDev(), |
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stats.TxThroughputSample.Mean(), |
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stats.TxThroughputSample.Max(), |
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stats.TxThroughputSample.StdDev(), |
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}) |
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result, err := json.Marshal(struct { |
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TxsThroughput float64 `json:"txs_per_sec_avg"` |
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BlocksThroughput float64 `json:"blocks_per_sec_avg"` |
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}{stats.TxsThroughput.Mean(), stats.BlocksThroughput.Mean()}) |
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if err != nil { |
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fmt.Fprintln(os.Stderr, err) |
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os.Exit(1) |
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} |
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fmt.Println(string(result)) |
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} else { |
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w := tabwriter.NewWriter(os.Stdout, 0, 0, 5, ' ', 0) |
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fmt.Fprintln(w, "Stats\tAvg\tStdev\tMax\t") |
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fmt.Fprintln(w, fmt.Sprintf("Block latency\t%.2fms\t%.2fms\t%dms\t", |
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stats.BlockLatency.Mean()/1000000.0, |
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stats.BlockLatency.StdDev()/1000000.0, |
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stats.BlockLatency.Max()/1000000)) |
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fmt.Fprintln(w, fmt.Sprintf("Blocks/sec\t%.3f\t%.3f\t%d\t", |
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stats.BlockTimeSample.Mean(), |
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stats.BlockTimeSample.StdDev(), |
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stats.BlockTimeSample.Max())) |
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fmt.Fprintln(w, "Stats\tAvg\tStdDev\tMax\t") |
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fmt.Fprintln(w, fmt.Sprintf("Txs/sec\t%.0f\t%.0f\t%d\t", |
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stats.TxThroughputSample.Mean(), |
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stats.TxThroughputSample.StdDev(), |
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stats.TxThroughputSample.Max())) |
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stats.TxsThroughput.Mean(), |
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stats.TxsThroughput.StdDev(), |
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stats.TxsThroughput.Max())) |
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fmt.Fprintln(w, fmt.Sprintf("Blocks/sec\t%.3f\t%.3f\t%d\t", |
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stats.BlocksThroughput.Mean(), |
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stats.BlocksThroughput.StdDev(), |
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stats.BlocksThroughput.Max())) |
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w.Flush() |
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} |
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} |
Anton Kaliaev
6 years ago
GitHub