https://cassandra.apache.org: The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.
  • Andres de la Peña
  • Avinash Lakshman
  • Aleksey Yeschenko
  • Aaron Morton
  • Ariel Weisberg
  • Blake Eggleston
  • Benedict Elliott Smith
  • Benjamin Lerer
  • Branimir Lambov
  • Brandon Williams
  • Carl Yeksigian
  • David Brosiusd
  • Dikang Gu
  • Eric Evans
  • Gary Dusbabek
  • Chris Goffinet
  • Alex Petrov
  • Laine Jaakko Olavi
  • T Jake Luciani
  • Jason Brown
  • Jonathan Ellis
  • Jake Farrell
  • Jeff Jirsa
  • Joel Knighton
  • Josh McKenzie
  • Johan Oskarsson
  • Jun Rao
  • Jay Zhuang
  • Sankalp Kohli
  • Marcus Eriksson
  • Michael Semb Wever
  • Mikhail Stepura
  • Michael Shuler
  • Paulo Motta
  • Prashant Malik
  • Robert Stupp
  • Peter Schuller
  • Sam Tunnicliffe
  • Sylvain Lebresne
  • Stefania Alborghetti
  • Tyler Hobbs
  • Vijay Parthasarathy
  • Pavel Yaskevich
  • Yuki Morishita
  • Nate McCall 
class org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA
  super_class: java.lang.Object
{
  private volatile boolean initialized;
    descriptor: Z
    flags: (0x0042) ACC_PRIVATE, ACC_VOLATILE

  private volatile double rate;
    descriptor: D
    flags: (0x0042) ACC_PRIVATE, ACC_VOLATILE

  private final java.util.concurrent.atomic.AtomicLong uncounted;
    descriptor: Ljava/util/concurrent/atomic/AtomicLong;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final double alpha;
    descriptor: D
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final double interval;
    descriptor: D
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(long);
    descriptor: (J)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=7, locals=3, args_size=2
        start local 0 // org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA this
        start local 1 // long windowInSeconds
         0: .line 173
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 162
            aload 0 /* this */
            iconst_0
            putfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.initialized:Z
         2: .line 163
            aload 0 /* this */
            dconst_0
            putfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.rate:D
         3: .line 165
            aload 0 /* this */
            new java.util.concurrent.atomic.AtomicLong
            dup
            invokespecial java.util.concurrent.atomic.AtomicLong.<init>:()V
            putfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.uncounted:Ljava/util/concurrent/atomic/AtomicLong;
         4: .line 175
            aload 0 /* this */
            dconst_1
            getstatic org.apache.cassandra.metrics.RestorableMeter.TICK_INTERVAL:J
            lneg
            l2d
            getstatic org.apache.cassandra.metrics.RestorableMeter.NANOS_PER_SECOND:D
            ddiv
            lload 1 /* windowInSeconds */
            l2d
            ddiv
            invokestatic java.lang.Math.exp:(D)D
            dsub
            putfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.alpha:D
         5: .line 176
            aload 0 /* this */
            getstatic org.apache.cassandra.metrics.RestorableMeter.TICK_INTERVAL:J
            l2d
            putfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.interval:D
         6: .line 177
            return
        end local 1 // long windowInSeconds
        end local 0 // org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    7     0             this  Lorg/apache/cassandra/metrics/RestorableMeter$RestorableEWMA;
            0    7     1  windowInSeconds  J
    MethodParameters:
                 Name  Flags
      windowInSeconds  

  public void <init>(double, long);
    descriptor: (DJ)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=5, args_size=3
        start local 0 // org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA this
        start local 1 // double lastRate
        start local 3 // long intervalInSeconds
         0: .line 186
            aload 0 /* this */
            lload 3 /* intervalInSeconds */
            invokespecial org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.<init>:(J)V
         1: .line 187
            aload 0 /* this */
            dload 1 /* lastRate */
            getstatic org.apache.cassandra.metrics.RestorableMeter.NANOS_PER_SECOND:D
            ddiv
            putfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.rate:D
         2: .line 188
            aload 0 /* this */
            iconst_1
            putfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.initialized:Z
         3: .line 189
            return
        end local 3 // long intervalInSeconds
        end local 1 // double lastRate
        end local 0 // org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0    4     0               this  Lorg/apache/cassandra/metrics/RestorableMeter$RestorableEWMA;
            0    4     1           lastRate  D
            0    4     3  intervalInSeconds  J
    MethodParameters:
                   Name  Flags
      lastRate           
      intervalInSeconds  

  public void update(long);
    descriptor: (J)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA this
        start local 1 // long n
         0: .line 196
            aload 0 /* this */
            getfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.uncounted:Ljava/util/concurrent/atomic/AtomicLong;
            lload 1 /* n */
            invokevirtual java.util.concurrent.atomic.AtomicLong.addAndGet:(J)J
            pop2
         1: .line 197
            return
        end local 1 // long n
        end local 0 // org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/cassandra/metrics/RestorableMeter$RestorableEWMA;
            0    2     1     n  J
    MethodParameters:
      Name  Flags
      n     

  public void tick();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=9, locals=5, args_size=1
        start local 0 // org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA this
         0: .line 204
            aload 0 /* this */
            getfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.uncounted:Ljava/util/concurrent/atomic/AtomicLong;
            lconst_0
            invokevirtual java.util.concurrent.atomic.AtomicLong.getAndSet:(J)J
            lstore 1 /* count */
        start local 1 // long count
         1: .line 205
            lload 1 /* count */
            l2d
            aload 0 /* this */
            getfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.interval:D
            ddiv
            dstore 3 /* instantRate */
        start local 3 // double instantRate
         2: .line 206
            aload 0 /* this */
            getfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.initialized:Z
            ifeq 5
         3: .line 208
            aload 0 /* this */
            dup
            getfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.rate:D
            aload 0 /* this */
            getfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.alpha:D
            dload 3 /* instantRate */
            aload 0 /* this */
            getfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.rate:D
            dsub
            dmul
            dadd
            putfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.rate:D
         4: .line 209
            goto 7
         5: .line 212
      StackMap locals: long double
      StackMap stack:
            aload 0 /* this */
            dload 3 /* instantRate */
            putfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.rate:D
         6: .line 213
            aload 0 /* this */
            iconst_1
            putfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.initialized:Z
         7: .line 215
      StackMap locals:
      StackMap stack:
            return
        end local 3 // double instantRate
        end local 1 // long count
        end local 0 // org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    8     0         this  Lorg/apache/cassandra/metrics/RestorableMeter$RestorableEWMA;
            1    8     1        count  J
            2    8     3  instantRate  D

  public double rate();
    descriptor: ()D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA this
         0: .line 222
            aload 0 /* this */
            getfield org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA.rate:D
            getstatic org.apache.cassandra.metrics.RestorableMeter.NANOS_PER_SECOND:D
            dmul
            dreturn
        end local 0 // org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/cassandra/metrics/RestorableMeter$RestorableEWMA;
}
SourceFile: "RestorableMeter.java"
NestHost: org.apache.cassandra.metrics.RestorableMeter
InnerClasses:
  RestorableEWMA = org.apache.cassandra.metrics.RestorableMeter$RestorableEWMA of org.apache.cassandra.metrics.RestorableMeter