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tools: add mixed read-write performance evaluation scripts
Backport tools/benchmark/cmd/txn_mixed.go from commit 79b2777, pull request etcd-io#13038. Co-authored-by: Ivan Valdes <ivan@vald.es> Signed-off-by: Ivan Valdes <ivan@vald.es>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,151 @@ | ||
| // Copyright 2021 The etcd Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
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| package cmd | ||
|
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||
| import ( | ||
| "context" | ||
| "encoding/binary" | ||
| "fmt" | ||
| "math" | ||
| "math/rand" | ||
| "os" | ||
| "time" | ||
|
|
||
| "gopkg.in/cheggaaa/pb.v1" | ||
| "github.com/spf13/cobra" | ||
| "golang.org/x/time/rate" | ||
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| v3 "go.etcd.io/etcd/client/v3" | ||
| "go.etcd.io/etcd/pkg/v3/report" | ||
| ) | ||
|
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| // mixeTxnCmd represents the mixedTxn command | ||
| var mixedTxnCmd = &cobra.Command{ | ||
| Use: "txn-mixed key [end-range]", | ||
| Short: "Benchmark a mixed load of txn-put & txn-range.", | ||
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| Run: mixedTxnFunc, | ||
| } | ||
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| var ( | ||
| mixedTxnTotal int | ||
| mixedTxnRate int | ||
| mixedTxnReadWriteRatio float64 | ||
| mixedTxnRangeLimit int64 | ||
| mixedTxnEndKey string | ||
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| writeOpsTotal uint64 | ||
| readOpsTotal uint64 | ||
| ) | ||
|
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| func init() { | ||
| RootCmd.AddCommand(mixedTxnCmd) | ||
| mixedTxnCmd.Flags().IntVar(&keySize, "key-size", 8, "Key size of mixed txn") | ||
| mixedTxnCmd.Flags().IntVar(&valSize, "val-size", 8, "Value size of mixed txn") | ||
| mixedTxnCmd.Flags().IntVar(&mixedTxnRate, "rate", 0, "Maximum txns per second (0 is no limit)") | ||
| mixedTxnCmd.Flags().IntVar(&mixedTxnTotal, "total", 10000, "Total number of txn requests") | ||
| mixedTxnCmd.Flags().StringVar(&mixedTxnEndKey, "end-key", "", | ||
| "Read operation range end key. By default, we do full range query with the default limit of 1000.") | ||
| mixedTxnCmd.Flags().Int64Var(&mixedTxnRangeLimit, "limit", 1000, "Read operation range result limit") | ||
| mixedTxnCmd.Flags().IntVar(&keySpaceSize, "key-space-size", 1, "Maximum possible keys") | ||
| mixedTxnCmd.Flags().StringVar(&rangeConsistency, "consistency", "l", "Linearizable(l) or Serializable(s)") | ||
| mixedTxnCmd.Flags().Float64Var(&mixedTxnReadWriteRatio, "rw-ratio", 1, "Read/write ops ratio") | ||
| } | ||
|
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| type request struct { | ||
| isWrite bool | ||
| op v3.Op | ||
| } | ||
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| func mixedTxnFunc(cmd *cobra.Command, _ []string) { | ||
| if keySpaceSize <= 0 { | ||
| fmt.Fprintf(os.Stderr, "expected positive --key-space-size, got (%v)", keySpaceSize) | ||
| os.Exit(1) | ||
| } | ||
|
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| if rangeConsistency == "l" { | ||
| fmt.Println("bench with linearizable range") | ||
| } else if rangeConsistency == "s" { | ||
| fmt.Println("bench with serializable range") | ||
| } else { | ||
| fmt.Fprintln(os.Stderr, cmd.Usage()) | ||
| os.Exit(1) | ||
| } | ||
|
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| requests := make(chan request, totalClients) | ||
| if mixedTxnRate == 0 { | ||
| mixedTxnRate = math.MaxInt32 | ||
| } | ||
| limit := rate.NewLimiter(rate.Limit(mixedTxnRate), 1) | ||
| clients := mustCreateClients(totalClients, totalConns) | ||
| k, v := make([]byte, keySize), string(mustRandBytes(valSize)) | ||
|
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| bar = pb.New(mixedTxnTotal) | ||
| bar.Start() | ||
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| reportRead := newReport() | ||
| reportWrite := newReport() | ||
| for i := range clients { | ||
| wg.Add(1) | ||
| go func(c *v3.Client) { | ||
| defer wg.Done() | ||
| for req := range requests { | ||
| limit.Wait(context.Background()) | ||
| st := time.Now() | ||
| _, err := c.Txn(context.TODO()).Then(req.op).Commit() | ||
| if req.isWrite { | ||
| reportWrite.Results() <- report.Result{Err: err, Start: st, End: time.Now()} | ||
| } else { | ||
| reportRead.Results() <- report.Result{Err: err, Start: st, End: time.Now()} | ||
| } | ||
| bar.Increment() | ||
| } | ||
| }(clients[i]) | ||
| } | ||
|
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| go func() { | ||
| for i := 0; i < mixedTxnTotal; i++ { | ||
| var req request | ||
| if rand.Float64() < mixedTxnReadWriteRatio/(1+mixedTxnReadWriteRatio) { | ||
| opts := []v3.OpOption{v3.WithRange(mixedTxnEndKey)} | ||
| if rangeConsistency == "s" { | ||
| opts = append(opts, v3.WithSerializable()) | ||
| } | ||
| opts = append(opts, v3.WithPrefix(), v3.WithLimit(mixedTxnRangeLimit)) | ||
| req.op = v3.OpGet("", opts...) | ||
| req.isWrite = false | ||
| readOpsTotal++ | ||
| } else { | ||
| binary.PutVarint(k, int64(i%keySpaceSize)) | ||
| req.op = v3.OpPut(string(k), v) | ||
| req.isWrite = true | ||
| writeOpsTotal++ | ||
| } | ||
| requests <- req | ||
| } | ||
| close(requests) | ||
| }() | ||
|
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| rcRead := reportRead.Run() | ||
| rcWrite := reportWrite.Run() | ||
| wg.Wait() | ||
| close(reportRead.Results()) | ||
| close(reportWrite.Results()) | ||
| bar.Finish() | ||
| fmt.Printf("Total Read Ops: %d\nDetails:", readOpsTotal) | ||
| fmt.Println(<-rcRead) | ||
| fmt.Printf("Total Write Ops: %d\nDetails:", writeOpsTotal) | ||
| fmt.Println(<-rcWrite) | ||
| } |