process.resourceUsage()

• 返回:<Object> 当前进程的资源使用情况。所有这些值都来自返回 uv_rusage_t 结构 的 uv_getrusage 调用。

  \Returns: <Object> the resource usage for the current process. All of these values come from the uv_getrusage call which returns a uv_rusage_t struct.

  • userCPUTime <integer> 映射到以微秒计算的 ru_utime。它与 process.cpuUsage().user 的值相同。

    \userCPUTime <integer> maps to ru_utime computed in microseconds. It is the same value as process.cpuUsage().user.

  • systemCPUTime <integer> 映射到以微秒计算的 ru_stime。它与 process.cpuUsage().system 的值相同。

    \systemCPUTime <integer> maps to ru_stime computed in microseconds. It is the same value as process.cpuUsage().system.

  • maxRSS <integer> 映射到 ru_maxrss,这是使用的最大驻留集大小(以千字节为单位)。

    \maxRSS <integer> maps to ru_maxrss which is the maximum resident set size used in kilobytes.

  • sharedMemorySize <integer> 映射到 ru_ixrss 但不受任何平台支持。

    \sharedMemorySize <integer> maps to ru_ixrss but is not supported by any platform.

  • unsharedDataSize <integer> 映射到 ru_idrss 但不受任何平台支持。

    \unsharedDataSize <integer> maps to ru_idrss but is not supported by any platform.

  • unsharedStackSize <integer> 映射到 ru_isrss 但不受任何平台支持。

    \unsharedStackSize <integer> maps to ru_isrss but is not supported by any platform.

  • minorPageFault <integer> 映射到 ru_minflt,它是进程的次要页面错误数,请参阅 这篇文章了解更多详情。

    \minorPageFault <integer> maps to ru_minflt which is the number of minor page faults for the process, see this article for more details.

  • majorPageFault <integer> 映射到 ru_majflt,这是进程的主要页面错误数,请参阅 这篇文章了解更多详情。Windows 不支持此字段。

    \majorPageFault <integer> maps to ru_majflt which is the number of major page faults for the process, see this article for more details. This field is not supported on Windows.

  • swappedOut <integer> 映射到 ru_nswap 但不受任何平台支持。

    \swappedOut <integer> maps to ru_nswap but is not supported by any platform.

  • fsRead <integer> 映射到 ru_inblock,这是文件系统必须执行输入的次数。

    \fsRead <integer> maps to ru_inblock which is the number of times the file system had to perform input.

  • fsWrite <integer> 映射到 ru_oublock,这是文件系统必须执行输出的次数。

    \fsWrite <integer> maps to ru_oublock which is the number of times the file system had to perform output.

  • ipcSent <integer> 映射到 ru_msgsnd 但不受任何平台支持。

    \ipcSent <integer> maps to ru_msgsnd but is not supported by any platform.

  • ipcReceived <integer> 映射到 ru_msgrcv 但不受任何平台支持。

    \ipcReceived <integer> maps to ru_msgrcv but is not supported by any platform.

  • signalsCount <integer> 映射到 ru_nsignals 但不受任何平台支持。

    \signalsCount <integer> maps to ru_nsignals but is not supported by any platform.

  • voluntaryContextSwitches <integer> 映射到 ru_nvcsw,这是由于进程在其时间片完成之前(通常是为了等待资源可用)自愿放弃处理器而导致 CPU 上下文切换的次数。Windows 不支持此字段。

    \voluntaryContextSwitches <integer> maps to ru_nvcsw which is the number of times a CPU context switch resulted due to a process voluntarily giving up the processor before its time slice was completed (usually to await availability of a resource). This field is not supported on Windows.

  • involuntaryContextSwitches <integer> 映射到 ru_nivcsw,这是由于较高优先级进程变得可运行或因为当前进程超出其时间片而导致 CPU 上下文切换的次数。Windows 不支持此字段。

    \involuntaryContextSwitches <integer> maps to ru_nivcsw which is the number of times a CPU context switch resulted due to a higher priority process becoming runnable or because the current process exceeded its time slice. This field is not supported on Windows.

import { resourceUsage } from 'node:process';
console.log(resourceUsage());
/*
 Will output:
 {
 userCPUTime: 82872,
 systemCPUTime: 4143,
 maxRSS: 33164,
 sharedMemorySize: 0,
 unsharedDataSize: 0,
 unsharedStackSize: 0,
 minorPageFault: 2469,
 majorPageFault: 0,
 swappedOut: 0,
 fsRead: 0,
 fsWrite: 8,
 ipcSent: 0,
 ipcReceived: 0,
 signalsCount: 0,
 voluntaryContextSwitches: 79,
 involuntaryContextSwitches: 1
 }
*/const { resourceUsage } = require('node:process');
console.log(resourceUsage());
/*
 Will output:
 {
 userCPUTime: 82872,
 systemCPUTime: 4143,
 maxRSS: 33164,
 sharedMemorySize: 0,
 unsharedDataSize: 0,
 unsharedStackSize: 0,
 minorPageFault: 2469,
 majorPageFault: 0,
 swappedOut: 0,
 fsRead: 0,
 fsWrite: 8,
 ipcSent: 0,
 ipcReceived: 0,
 signalsCount: 0,
 voluntaryContextSwitches: 79,
 involuntaryContextSwitches: 1
 }
*/拷贝