diff options
Diffstat (limited to 'kamon-system-metrics/src/main/scala/kamon/system/sigar/FileSystemMetrics.scala')
| -rw-r--r-- | kamon-system-metrics/src/main/scala/kamon/system/sigar/FileSystemMetrics.scala | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/kamon-system-metrics/src/main/scala/kamon/system/sigar/FileSystemMetrics.scala b/kamon-system-metrics/src/main/scala/kamon/system/sigar/FileSystemMetrics.scala index 2d516b80..eb327620 100644 --- a/kamon-system-metrics/src/main/scala/kamon/system/sigar/FileSystemMetrics.scala +++ b/kamon-system-metrics/src/main/scala/kamon/system/sigar/FileSystemMetrics.scala @@ -21,6 +21,11 @@ import kamon.metric.instrument.{ Memory, InstrumentFactory } import org.hyperic.sigar.{ DiskUsage, FileSystem, Sigar } import scala.util.Try +/** + * Disk usage metrics, as reported by Sigar: + * - readBytes: Total number of physical disk bytes written. + * - writesBytes: Total number of physical disk writes. + */ class FileSystemMetrics(sigar: Sigar, instrumentFactory: InstrumentFactory) extends GenericEntityRecorder(instrumentFactory) with SigarMetric { val reads = DiffRecordingHistogram(histogram("file-system-reads", Memory.Bytes)) val writes = DiffRecordingHistogram(histogram("file-system-writes", Memory.Bytes)) @@ -29,7 +34,7 @@ class FileSystemMetrics(sigar: Sigar, instrumentFactory: InstrumentFactory) exte def sumOfAllFileSystems(sigar: Sigar, thunk: DiskUsage ⇒ Long): Long = Try { fileSystems.map(i ⇒ thunk(sigar.getDiskUsage(i))).fold(0L)(_ + _) - } getOrElse (0L) + } getOrElse 0L def update(): Unit = { reads.record(sumOfAllFileSystems(sigar, _.getReadBytes)) |