dcapwell commented on code in PR #28:
URL: https://github.com/apache/cassandra-accord/pull/28#discussion_r1100833937
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accord-core/src/test/java/accord/impl/basic/DelayedExecutorService.java:
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@@ -0,0 +1,107 @@
+package accord.impl.basic;
+
+import accord.burn.random.Decision;
+import accord.burn.random.IntRange;
+import accord.burn.random.RandomInt;
+import accord.burn.random.SegmentedIntRange;
+import org.apache.cassandra.concurrent.FutureTask;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Random;
+import java.util.concurrent.AbstractExecutorService;
+import java.util.concurrent.Callable;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+
+public class DelayedExecutorService extends AbstractExecutorService
+{
+ private final PendingQueue pending;
+ private final Random random;
+ private final RandomInt jitterInNano;
+
+ public DelayedExecutorService(PendingQueue pending, Random random)
+ {
+ this.pending = pending;
+ this.random = random;
+ this.jitterInNano = new SegmentedIntRange(
+ new IntRange(microToNanos(0), microToNanos(50)),
+ new IntRange(microToNanos(50), msToNanos(5)),
+ // this is different from Apache Cassandra Simulator as this
is computed differently for each executor
Review Comment:
Created a new `FrequentLargeRange` which has a simple way to generate "runs"
and makes sure it stays within the expected range. This gives us the benefit
that we can have large runs, that we can have disjoint small/large ranges, and
that the ratio is respected in real time.
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