io.trino.operator.project.PageProcessorMetrics Maven / Gradle / Ivy
/*
* Licensed 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 io.trino.operator.project;
import com.google.common.collect.ImmutableMap;
import io.airlift.units.Duration;
import io.trino.plugin.base.metrics.DurationTiming;
import io.trino.spi.metrics.Metric;
import io.trino.spi.metrics.Metrics;
import static java.util.concurrent.TimeUnit.NANOSECONDS;
public class PageProcessorMetrics
{
private static final String FILTER_TIME = "Filter CPU time";
private static final String PROJECTION_TIME = "Projection CPU time";
private long filterTimeNanos;
private boolean hasFilter;
private long projectionTimeNanos;
private boolean hasProjection;
public void recordFilterTimeSince(long startNanos)
{
filterTimeNanos += System.nanoTime() - startNanos;
hasFilter = true;
}
public void recordProjectionTime(long projectionTimeNanos)
{
this.projectionTimeNanos += projectionTimeNanos;
hasProjection = true;
}
public Metrics getMetrics()
{
ImmutableMap.Builder> builder = ImmutableMap.builder();
if (hasFilter) {
builder.put(FILTER_TIME, new DurationTiming(new Duration(filterTimeNanos, NANOSECONDS)));
}
if (hasProjection) {
builder.put(PROJECTION_TIME, new DurationTiming(new Duration(projectionTimeNanos, NANOSECONDS)));
}
return new Metrics(builder.buildOrThrow());
}
}