func main() {
var defaultMaxprocs int
var err error
if defaultMaxprocs, err = strconv.Atoi(os.Getenv("GOMAXPROCS")); err != nil {
defaultMaxprocs = runtime.NumCPU() * 2
}
var mode, dir string
var port, maxprocs int
flag.StringVar(&mode, "mode", "", "[v1|v2|v3|bench|durable-bench|example]")
flag.StringVar(&dir, "dir", "", "database directory")
flag.IntVar(&port, "port", 0, "listening port number")
flag.IntVar(&maxprocs, "gomaxprocs", defaultMaxprocs, "GOMAXPROCS")
flag.Parse()
if mode == "" {
flag.PrintDefaults()
return
}
runtime.GOMAXPROCS(maxprocs)
log.Printf("GOMAXPROCS is set to %d", maxprocs)
if maxprocs < runtime.NumCPU() {
log.Printf("GOMAXPROCS (%d) is less than number of CPUs (%d), this may affect performance. You can change it via environment variable GOMAXPROCS or by passing CLI parameter -gomaxprocs", maxprocs, runtime.NumCPU())
}
switch mode {
case "v1":
fallthrough
case "v2":
fallthrough
case "v3":
if dir == "" {
log.Fatal("Please specify database directory, for example -dir=/tmp/db")
}
if port == 0 {
log.Fatal("Please specify port number, for example -port=8080")
}
db, err := db.OpenDB(dir)
if err != nil {
log.Fatal(err)
}
if mode == "v1" {
v1.Start(db, port)
} else if mode == "v2" {
v2.Start(db, port)
} else if mode == "v3" {
v3.Start(db, port)
}
case "bench":
benchmark()
case "durable-bench":
durableBenchmark()
case "example":
embeddedExample()
default:
flag.PrintDefaults()
return
}
}
func main() {
var defaultMaxprocs int
var err error
if defaultMaxprocs, err = strconv.Atoi(os.Getenv("GOMAXPROCS")); err != nil {
defaultMaxprocs = runtime.NumCPU() * 2
}
var mode, dir string
var port, maxprocs int
flag.StringVar(&mode, "mode", "", "[v1|bench|example]")
flag.StringVar(&dir, "dir", "", "database directory")
flag.IntVar(&port, "port", 0, "listening port number")
flag.IntVar(&maxprocs, "gomaxprocs", defaultMaxprocs, "GOMAXPROCS")
flag.Parse()
if mode == "" {
log.Fatal("tiedot -mode=[v1|bench|example] -gomaxprocs=MAX_NUMBER_OF_GOPROCS")
}
runtime.GOMAXPROCS(maxprocs)
log.Printf("GOMAXPROCS is set to %d", maxprocs)
switch mode {
case "v1":
if dir == "" {
log.Fatal("Please specify database directory, for example -dir=/tmp/db")
}
if port == 0 {
log.Fatal("Please specify port number, for example -port=8080")
}
db, err := db.OpenDB(dir)
if err != nil {
log.Fatal(err)
}
v1.Start(db, port)
case "bench":
benchmark()
case "example":
embeddedExample()
default:
log.Fatal("tiedot -mode=[v1|bench] -gomaxprocs=MAX_NUMBER_OF_GOPROCS")
}
}