29 lines
580 B
Go
29 lines
580 B
Go
package main
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import (
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"fmt"
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"runtime"
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"time"
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)
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func main() {
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runtime.GOMAXPROCS(1) // 模拟调度压力
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// 10ms 后到期的定时器
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timer := time.AfterFunc(10*time.Millisecond, func() {
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fmt.Println("定时器回调执行：sysmon 兜底触发")
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})
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defer timer.Stop()
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// 长耗时任务阻塞调度器
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start := time.Now()
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counter := 0
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for time.Since(start) < 50*time.Millisecond {
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counter++
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}
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fmt.Printf("长耗时任务结束，累计计数：%d\n", counter)
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time.Sleep(5 * time.Millisecond)
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fmt.Println("验证完成：定时器回调精准执行")
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}
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