From 1c0568c31d60d4e690b4b9aec2e14f660b72a5c8 Mon Sep 17 00:00:00 2001 From: Fabian Mastenbroek Date: Wed, 21 Apr 2021 14:30:55 +0200 Subject: simulator: Introduce SimulationCoroutineDispatcher This change introduces the SimulationCoroutineDispatcher implementation which replaces the TestCoroutineDispatcher for running single-threaded simulations. Previously, we used the TestCoroutineDispatcher from the kotlinx-coroutines-test modules for running simulations. However, this module is aimed at coroutine tests and not at simulations. In particular, having to construct a Clock object each time for the TestCoroutineDispatcher caused a lot of unnecessary lines. With the new approach, the SimulationCoroutineDispatcher automatically exposes a usable Clock object. In addition to ergonomic benefits, the SimulationCoroutineDispatcher is much faster than the TestCoroutineDispatcher due to the assumption that simulations run in only a single thread. As a result, the dispatcher does not need to perform synchronization and can use the fast PriorityQueue implementation. --- .../jmh/kotlin/org/opendc/simulator/resources/SimResourceBenchmarks.kt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'simulator/opendc-simulator/opendc-simulator-resources/src/jmh') diff --git a/simulator/opendc-simulator/opendc-simulator-resources/src/jmh/kotlin/org/opendc/simulator/resources/SimResourceBenchmarks.kt b/simulator/opendc-simulator/opendc-simulator-resources/src/jmh/kotlin/org/opendc/simulator/resources/SimResourceBenchmarks.kt index f2eea97c..ab0abe23 100644 --- a/simulator/opendc-simulator/opendc-simulator-resources/src/jmh/kotlin/org/opendc/simulator/resources/SimResourceBenchmarks.kt +++ b/simulator/opendc-simulator/opendc-simulator-resources/src/jmh/kotlin/org/opendc/simulator/resources/SimResourceBenchmarks.kt @@ -26,7 +26,7 @@ import kotlinx.coroutines.ExperimentalCoroutinesApi import kotlinx.coroutines.launch import kotlinx.coroutines.test.TestCoroutineScope import kotlinx.coroutines.test.runBlockingTest -import org.opendc.simulator.utils.DelayControllerClockAdapter +import org.opendc.simulator.core.DelayControllerClockAdapter import org.opendc.utils.TimerScheduler import org.openjdk.jmh.annotations.* import java.time.Clock -- cgit v1.2.3