[GitHub] markusthoemmes commented on a change in pull request #2792: Add a controller simulator to drive invoker benchmarks.

[gi...@git.apache.org]

markusthoemmes commented on a change in pull request #2792: Add a controller simulator to drive invoker benchmarks.
URL: https://github.com/apache/incubator-openwhisk/pull/2792#discussion_r140804318
 
 

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 File path: tools/benchmark/src/main/scala/whisk/core/benchmark/ControllerSimulator.scala
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 @@ -0,0 +1,165 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 whisk.core.benchmark
+
+import java.nio.charset.StandardCharsets
+import java.time.Instant
+
+import akka.actor.{ActorSystem, Props}
+import whisk.common.{AkkaLogging, Logging, TransactionId}
+import whisk.core.WhiskConfig
+import whisk.core.connector.{ActivationMessage, CompletionMessage, MessageFeed, MessagingProvider}
+import whisk.core.database.NoDocumentException
+import whisk.core.entity._
+import whisk.spi.SpiLoader
+
+import scala.collection.concurrent.TrieMap
+import scala.concurrent.duration._
+import scala.concurrent.{Await, ExecutionContext, Future, Promise}
+
+object ControllerSimulator {
+  def between(start: Instant, end: Instant): Duration =
+    Duration.fromNanos(java.time.Duration.between(start, end).toNanos)
+
+  def main(args: Array[String]): Unit = {
+    implicit val as: ActorSystem = ActorSystem()
+    implicit val ec: ExecutionContext = as.dispatcher
+    implicit val log: Logging = new AkkaLogging(as.log)
+    implicit val tid: TransactionId = TransactionId.controller
+
+    val messageCount = sys.env.get("INVOCATIONS").map(_.toInt).getOrElse(10)
 
 Review comment:
   You do hope right. This is just a sensible default that doesn't flood a system.
 
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