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characters

  • import "runtime/trace"

  • 概況

  • 索引

概況

執(zhí)行追蹤器。跟蹤器捕獲各種各樣的執(zhí)行事件,如 goroutine 創(chuàng)建/阻塞/解鎖,系統(tǒng)調(diào)用進入/退出/塊,GC 相關(guān)事件,堆大小變化,處理器啟動/停止等,并將它們寫入 io.Writer 中緊湊的形式。大多數(shù)事件都會捕獲精確的納秒精度時間戳和堆棧跟蹤。跟蹤可以稍后使用 'go tool trace' 命令進行分析。

索引

  • func Start(w io.Writer) error

  • func Stop()

包文件

trace.go

func Start

func Start(w io.Writer) error

Start 啟用當(dāng)前程序的跟蹤。跟蹤時,跟蹤將被緩沖并寫入 w 。如果跟蹤已啟用,則啟動將返回錯誤。

func Stop

func Stop()

Stop 停止當(dāng)前跟蹤,如果有的話。在完成跟蹤的所有寫入后,僅停止返回。

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