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main.go
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main.go
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package main
import (
"context"
"database/sql"
"flag"
"fmt"
"log"
"log/slog"
"os"
"sync"
"time"
"github.com/cschleiden/go-workflows/backend"
"github.com/cschleiden/go-workflows/backend/monoprocess"
"github.com/cschleiden/go-workflows/backend/mysql"
"github.com/cschleiden/go-workflows/backend/redis"
"github.com/cschleiden/go-workflows/backend/sqlite"
"github.com/cschleiden/go-workflows/client"
"github.com/cschleiden/go-workflows/worker"
redisv8 "github.com/redis/go-redis/v9"
)
var b = flag.String("backend", "redis", "Backend to use. Supported backends are:\n- redis\n- mysql\n- sqlite\n")
var timeout = flag.Duration("timeout", time.Second*30, "Timeout for the benchmark run")
var scenario = flag.String("scenario", "basic", "Scenario to run. Support scenarios are:\n- basic\n")
var runs = flag.Int("runs", 1, "Number of root workflows to start")
var depth = flag.Int("depth", 2, "Depth of mid workflows")
var fanOut = flag.Int("fanout", 2, "Number of child workflows to execute per root/mid workflow")
var leafFanOut = flag.Int("leaffanout", 2, "Number of leaf workflows to execute per mid workflow")
var activities = flag.Int("activities", 2, "Number of activities to execute per leaf workflow")
var resultSize = flag.Int("resultsize", 100, "Size of activity result payload in bytes")
var format = flag.String("format", "text", "Output format. Supported formats are:\n- text\n- csv\n")
var cacheSize = flag.Int("cachesize", 128, "Size of the workflow executor cache")
func main() {
flag.Parse()
ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(*timeout).Add(time.Second*5))
defer cancel()
mm := newMemMetrics()
ba := getBackend(*b,
backend.WithLogger(slog.New(&nullHandler{})),
backend.WithMetrics(mm),
)
defer ba.Close()
wo := worker.DefaultOptions
wo.WorkflowExecutorCacheSize = *cacheSize
if *b == "redis" {
wo.ActivityPollingInterval = 0
wo.WorkflowPollingInterval = 0
}
w := worker.New(ba, &wo)
w.RegisterWorkflow(Root)
w.RegisterWorkflow(Mid)
w.RegisterWorkflow(Leaf)
w.RegisterActivity(Activity)
if err := w.Start(ctx); err != nil {
panic(err)
}
c := client.New(ba)
start := time.Now()
wg := sync.WaitGroup{}
for i := 0; i < *runs; i++ {
i, err := c.CreateWorkflowInstance(ctx, client.WorkflowInstanceOptions{
InstanceID: fmt.Sprintf("root-%d", i),
}, Root, &MidInput{
FanOut: *fanOut,
Depth: *depth,
LeafFanOut: *leafFanOut,
Activities: *activities,
PayloadSizeBytes: *resultSize,
})
if err != nil {
panic(err)
}
wg.Add(1)
go func() {
defer wg.Done()
err := c.WaitForWorkflowInstance(ctx, i, *timeout)
if err != nil {
panic(fmt.Errorf("Workflow instance %s failed: %w", i.InstanceID, err))
}
}()
}
wg.Wait()
end := time.Now()
switch *format {
case "text":
log.Println("Ran", *runs, "root workflows in", end.Sub(start).Seconds(), "seconds")
mm.Print()
case "csv":
fmt.Printf(
"%s,%v,%s,%d,%d,%d,%d,%d,%d\n",
*b, end.Sub(start).Seconds(), *scenario, *runs, *depth, *fanOut, *leafFanOut, *activities, *resultSize)
}
}
func getBackend(b string, opt ...backend.BackendOption) backend.Backend {
switch b {
case "memory":
return monoprocess.NewMonoprocessBackend(sqlite.NewInMemoryBackend(sqlite.WithBackendOptions(opt...)))
case "sqlite":
os.Remove("bench.sqlite")
return monoprocess.NewMonoprocessBackend(sqlite.NewSqliteBackend("bench.sqlite", sqlite.WithBackendOptions(opt...)))
case "mysql":
db, err := sql.Open("mysql", fmt.Sprintf("%s:%s@/?parseTime=true&interpolateParams=true", "root", "root"))
if err != nil {
panic(err)
}
if _, err := db.Exec("DROP DATABASE IF EXISTS bench"); err != nil {
panic(fmt.Errorf("dropping database: %w", err))
}
if _, err := db.Exec("CREATE DATABASE bench"); err != nil {
panic(fmt.Errorf("creating database: %w", err))
}
if err := db.Close(); err != nil {
panic(err)
}
return monoprocess.NewMonoprocessBackend(
mysql.NewMysqlBackend("localhost", 3306, "root", "root", "bench", mysql.WithBackendOptions(opt...),
mysql.WithMySQLOptions(func(db *sql.DB) {
db.SetMaxOpenConns(100)
})),
)
case "redis":
rclient := redisv8.NewUniversalClient(&redisv8.UniversalOptions{
Addrs: []string{"localhost:6379"},
Username: "",
Password: "RedisPassw0rd",
DB: 0,
WriteTimeout: time.Second * 30,
ReadTimeout: time.Second * 30,
})
_, err := rclient.FlushAll(context.Background()).Result()
if err != nil {
panic(err)
}
b, err := redis.NewRedisBackend(rclient, redis.WithBackendOptions(opt...))
if err != nil {
panic(err)
}
return b
default:
panic("unknown backend " + b)
}
}