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/*
* =========================================================================================
* Copyright © 2013-2015 the kamon project <http://kamon.io/>
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the
* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific language governing permissions
* and limitations under the License.
* =========================================================================================
*/
package kamon.system.sigar
import kamon.metric.GenericEntityRecorder
import kamon.metric.instrument.InstrumentFactory
import org.hyperic.sigar.Sigar
/**
* Load Average metrics, as reported by Sigar:
* - The system load averages for the past 1, 5, and 15 minutes.
*/
class LoadAverageMetrics(sigar: Sigar, instrumentFactory: InstrumentFactory) extends GenericEntityRecorder(instrumentFactory) with SigarMetric {
val oneMinute = histogram("one-minute")
val fiveMinutes = histogram("five-minutes")
val fifteenMinutes = histogram("fifteen-minutes")
def update(): Unit = {
val loadAverage = sigar.getLoadAverage
oneMinute.record(loadAverage(0).toLong)
fiveMinutes.record(loadAverage(1).toLong)
fifteenMinutes.record(loadAverage(2).toLong)
}
}
object LoadAverageMetrics extends SigarMetricRecorderCompanion("load-average") {
def apply(sigar: Sigar, instrumentFactory: InstrumentFactory): LoadAverageMetrics =
new LoadAverageMetrics(sigar, instrumentFactory)
}
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