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feat(store): use blocking queue in wal appending
Signed-off-by: James Yin <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| // Copyright 2023 Linkall Inc. | ||
| // | ||
| // 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. | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| // standard libraries. | ||
| "context" | ||
| "fmt" | ||
| "log" | ||
| stdsync "sync" | ||
| "sync/atomic" | ||
| "time" | ||
|
|
||
| // this project. | ||
| "github.com/linkall-labs/vanus/internal/primitive/sync" | ||
| walog "github.com/linkall-labs/vanus/internal/store/wal" | ||
| ) | ||
|
|
||
| const ( | ||
| N = 500000 | ||
| PayloadSize = 1024 | ||
| ) | ||
|
|
||
| func main() { | ||
| ctx := context.Background() | ||
|
|
||
| wal, err := walog.Open( | ||
| ctx, | ||
| "wal-test", | ||
| // walog.WithBlockSize(4*1024), | ||
| // walog.WithFileSize(1024*1024*1024), | ||
| walog.WithFlushDelayTime(10*time.Millisecond), | ||
| // walog.WithIOEngine(uring.New()), | ||
| // walog.WithIOEngine(psync.New(psync.WithParallel(8))), | ||
| ) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| defer func() { | ||
| wal.Close() | ||
| wal.Wait() | ||
| }() | ||
|
|
||
| payload := generatePayload(PayloadSize) | ||
|
|
||
| var count, last int64 | ||
| var totalCost, lastCost int64 | ||
| var totalWrite, lastWrite int64 | ||
|
|
||
| go func() { | ||
| for { | ||
| time.Sleep(time.Second) | ||
| cu := atomic.LoadInt64(&count) | ||
| ct := atomic.LoadInt64(&totalCost) | ||
| cw := atomic.LoadInt64(&totalWrite) | ||
| if n := cu - last; n != 0 { | ||
| log.Printf("TPS: %d\tlatency: %.3fms\tthroughput: %.2fMiB/s\n", | ||
| n, float64(ct-lastCost)/float64(n)/1000, float64(cw-lastWrite)/1024/1024) | ||
| } else { | ||
| log.Printf("TPS: %d\tlatency: NaN\n", n) | ||
| } | ||
| last = cu | ||
| lastCost = ct | ||
| lastWrite = cw | ||
| } | ||
| }() | ||
|
|
||
| start := time.Now() | ||
|
|
||
| var sema sync.Semaphore | ||
| for i := 0; i < 256; i++ { | ||
| sema.Release() | ||
| } | ||
|
|
||
| var wg stdsync.WaitGroup | ||
| wg.Add(N) | ||
| for i := 0; i < N; i++ { | ||
| sema.Acquire() | ||
| st := time.Now() | ||
| wal.AppendOne(ctx, payload, func(r walog.Range, err error) { | ||
| cost := time.Since(st) | ||
| if err != nil { | ||
| log.Printf("err: %v", err) | ||
| } else { | ||
| atomic.AddInt64(&count, 1) | ||
| atomic.AddInt64(&totalCost, cost.Microseconds()) | ||
| atomic.AddInt64(&totalWrite, r.EO-r.SO) | ||
| } | ||
| wg.Done() | ||
| sema.Release() | ||
| }) | ||
| } | ||
| wg.Wait() | ||
|
|
||
| cost := time.Since(start) | ||
| fmt.Printf("write: %.2f MiB\n", float64(totalCost)/1024/1024) | ||
| fmt.Printf("cost: %d ms\n", cost.Milliseconds()) | ||
| fmt.Printf("failed: %d\n", N-count) | ||
| fmt.Printf("tps: %f\n", float64(count)/cost.Seconds()) | ||
| } | ||
|
|
||
| func generatePayload(size int) []byte { | ||
| data := func() string { | ||
| str := "" | ||
| for idx := 0; idx < size-1; idx++ { | ||
| str += "a" | ||
| } | ||
| str += "\n" | ||
| return str | ||
| }() | ||
| return []byte(data) | ||
| } |