--cpu-prof
稳定性: 1 - 实验
启动时开始 V8 CPU 分析器,并且在退出前将 CPU 分析文件写入磁盘。
如果未指定--cpu-prof-dir
,则生成的分析文件放在当前工作目录中。
如果未指定 --cpu-prof-name
,则生成的分析文件名为 CPU.${yyyymmdd}.${hhmmss}.${pid}.${tid}.${seq}.cpuprofile
。
$ node --cpu-prof index.js
$ ls *.cpuprofile
CPU.20190409.202950.15293.0.0.cpuprofile
Stability: 1 - Experimental
Starts the V8 CPU profiler on start up, and writes the CPU profile to disk before exit.
If --cpu-prof-dir
is not specified, the generated profile is placed
in the current working directory.
If --cpu-prof-name
is not specified, the generated profile is
named CPU.${yyyymmdd}.${hhmmss}.${pid}.${tid}.${seq}.cpuprofile
.
$ node --cpu-prof index.js
$ ls *.cpuprofile
CPU.20190409.202950.15293.0.0.cpuprofile