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ARTEMIS-3522 Improve next fire time computation using double period

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This commit is contained in:
franz1981 2022-03-03 16:46:28 +01:00
parent d744668270
commit a51916447e
1 changed files with 7 additions and 4 deletions
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11
artemis-cli/src/main/java/org/apache/activemq/artemis/cli/commands/messages/perf/ProducerTargetRateLoadGenerator.java
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@ -16,7 +16,6 @@
*/
package org.apache.activemq.artemis.cli.commands.messages.perf;
import java.util.concurrent.TimeUnit;
import java.util.function.BooleanSupplier;
import io.netty.util.concurrent.OrderedEventExecutor;
@ -24,7 +23,9 @@ import org.HdrHistogram.SingleWriterRecorder;
public final class ProducerTargetRateLoadGenerator extends SkeletalProducerLoadGenerator {
private final long usPeriod;
private final double usPeriod;
private long startLoadMicros;
private long fireCount;
private long fireTimeMicros;
private boolean started;
@ -39,7 +40,7 @@ public final class ProducerTargetRateLoadGenerator extends SkeletalProducerLoadG
final SingleWriterRecorder waitLatencies) {
super(producer, executor, timeProvider, keepOnSending, group, msgContent, sendCompletedLatencies, waitLatencies);
this.fireTimeMicros = 0;
this.usPeriod = TimeUnit.NANOSECONDS.toMicros(nsPeriod);
this.usPeriod = nsPeriod / 1000d;
this.started = false;
}
@ -51,6 +52,7 @@ public final class ProducerTargetRateLoadGenerator extends SkeletalProducerLoadG
final long now = timeProvider.now();
if (!started) {
started = true;
startLoadMicros = now;
fireTimeMicros = now;
}
if (!trySend(fireTimeMicros, now)) {
@ -61,7 +63,8 @@ public final class ProducerTargetRateLoadGenerator extends SkeletalProducerLoadG
stopLoad = true;
return;
}
fireTimeMicros += usPeriod;
fireCount++;
fireTimeMicros = startLoadMicros + (long) (fireCount * usPeriod);
final long delay = fireTimeMicros - timeProvider.now();
final long usToNextFireTime = Math.max(0, delay);
asyncContinue(usToNextFireTime);