patriknw
/ LoggingMailbox.scala
Last active
January 5, 2023 08:12
Logs the mailbox size when exceeding the configured limit. Implemented in Scala and Java. Copy one of them to your project and define the configuration. This code is licensed under the Apache 2 license.
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| /** | |
| * Copyright (C) 2009-2014 Typesafe Inc. <http://www.typesafe.com> | |
| */ | |
| package akka.contrib.mailbox | |
| import scala.concurrent.duration._ | |
| import java.util.concurrent.atomic.AtomicInteger | |
| import java.util.concurrent.atomic.AtomicLong | |
| import com.typesafe.config.Config | |
| import akka.actor.{ ActorContext, ActorRef, ActorSystem, ExtendedActorSystem } |
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| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |