- 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][uv_rusage_t].
userCPUTime
{integer} maps to ru_utime
computed in microseconds.
It is the same value as [process.cpuUsage().user
][process.cpuUsage].systemCPUTime
{integer} maps to ru_stime
computed in microseconds.
It is the same value as [process.cpuUsage().system
][process.cpuUsage].maxRSS
{integer} maps to ru_maxrss
which is the maximum resident set
size used in kilobytes.sharedMemorySize
{integer} maps to ru_ixrss
but is not supported by
any platform.unsharedDataSize
{integer} maps to ru_idrss
but is not supported by
any platform.unsharedStackSize
{integer} maps to ru_isrss
but is not supported by
any platform.minorPageFault
{integer} maps to ru_minflt
which is the number of
minor page faults for the process, see
[this article for more details][wikipedia_minor_fault].majorPageFault
{integer} maps to ru_majflt
which is the number of
major page faults for the process, see
[this article for more details][wikipedia_major_fault]. This field is not
supported on Windows.swappedOut
{integer} maps to ru_nswap
but is not supported by any
platform.fsRead
{integer} maps to ru_inblock
which is the number of times the
file system had to perform input.fsWrite
{integer} maps to ru_oublock
which is the number of times the
file system had to perform output.ipcSent
{integer} maps to ru_msgsnd
but is not supported by any
platform.ipcReceived
{integer} maps to ru_msgrcv
but is not supported by any
platform.signalsCount
{integer} maps to ru_nsignals
but is not supported by any
platform.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} 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.
console.log(process.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
}
*/