kamon.instrumentation.system.process.ProcessMetrics.scala Maven / Gradle / Ivy

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package kamon.instrumentation.system.process

import kamon.Kamon
import kamon.metric.{InstrumentGroup, MeasurementUnit}
import kamon.tag.TagSet

object ProcessMetrics {

  val ProcessCpu = Kamon.histogram(
    name = "process.cpu.usage",
    description = "Samples the Process CPU usage",
    unit = MeasurementUnit.percentage
  )

  val ULimitMaxFileDescriptors = Kamon.gauge (
    name = "process.ulimit.file-descriptors.max",
    description = "Tracks the max number of file descriptors that can be used by the process"
  )
  val ULimitUsedFileDescriptors = Kamon.gauge (
    name = "process.ulimit.file-descriptors.used",
    description = "Tracks the number of file descriptors used by the process"
  )

  val Hiccups = Kamon.timer (
    name = "process.hiccups",
    description = "Tracks the process hiccups generated by either garbage collection or OS noise"
  )


  class ProcessInstruments(tags: TagSet) extends InstrumentGroup(tags) {
    val user = register(ProcessCpu, "mode", "user")
    val system = register(ProcessCpu, "mode", "system")
    val combined = register(ProcessCpu, "mode", "combined")
    val openFilesLimit = register(ULimitMaxFileDescriptors)
    val openFilesCurrent = register(ULimitUsedFileDescriptors)
    val hiccups = register(Hiccups)
  }
}