timer
timer是高性能定时器库
feature
- 支持一次性定时器
- 支持周期性定时器
- 支持多种数据结构后端，最小堆，5级时间轮
一次性定时器
import (
"github.com/antlabs/timer"
"log"
)
func main() {
tm := timer.NewTimer()
tm.AfterFunc(1*time.Second, func() {
log.Printf("after\n")
})
tm.AfterFunc(10*time.Second, func() {
log.Printf("after\n")
})
tm.Run()
}周期性定时器
import (
"github.com/antlabs/timer"
"log"
)
func main() {
tm := timer.NewTimer()
tm.ScheduleFunc(1*time.Second, func() {
log.Printf("schedule\n")
})
tm.Run()
}自定义周期性定时器
实现时间翻倍定时的例子
type curstomTest struct {
count int
}
// 只要实现Next接口就行
func (c *curstomTest) Next(now time.Time) (rv time.Time) {
rv = now.Add(time.Duration(c.count) * time.Millisecond * 10)
c.count++
return
}
func main() {
tm := timer.NewTimer(timer.WithMinHeap())
node := tm.CustomFunc(&curstomTest{count: 1}, func() {
log.Printf("%v\n", time.Now())
})
tm.Run()
}取消某一个定时器
import (
"log"
"time"
"github.com/antlabs/timer"
)
func main() {
tm := timer.NewTimer()
// 只会打印2 time.Second
tm.AfterFunc(2*time.Second, func() {
log.Printf("2 time.Second")
})
// tk3 会被 tk3.Stop()函数调用取消掉
tk3 := tm.AfterFunc(3*time.Second, func() {
log.Printf("3 time.Second")
})
tk3.Stop() //取消tk3
tm.Run()
}选择不同的的数据结构
import (
"github.com/antlabs/timer"
"log"
)
func main() {
tm := timer.NewTimer(timer.WithMinHeap())// 选择最小堆，默认时间轮
}benchmark
github.com/antlabs/timer 性能最高
goos: linux
goarch: amd64
pkg: benchmark
Benchmark_antlabs_Timer_AddTimer/N-1m-16 9177537 124 ns/op
Benchmark_antlabs_Timer_AddTimer/N-5m-16 10152950 128 ns/op
Benchmark_antlabs_Timer_AddTimer/N-10m-16 9955639 127 ns/op
Benchmark_RussellLuo_Timingwheel_AddTimer/N-1m-16 5316916 222 ns/op
Benchmark_RussellLuo_Timingwheel_AddTimer/N-5m-16 5848843 218 ns/op
Benchmark_RussellLuo_Timingwheel_AddTimer/N-10m-16 5872621 231 ns/op
Benchmark_ouqiang_Timewheel/N-1m-16 720667 1622 ns/op
Benchmark_ouqiang_Timewheel/N-5m-16 807018 1573 ns/op
Benchmark_ouqiang_Timewheel/N-10m-16 666183 1557 ns/op
Benchmark_Stdlib_AddTimer/N-1m-16 8031864 144 ns/op
Benchmark_Stdlib_AddTimer/N-5m-16 8437442 151 ns/op
Benchmark_Stdlib_AddTimer/N-10m-16 8080659 167 ns/op