com.palantir.atlasdb.performance.benchmarks.KvsGetRowsColumnRangeBenchmarks Maven / Gradle / Ivy

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/*
 * (c) Copyright 2018 Palantir Technologies Inc. All rights reserved.
 *
 * 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 com.palantir.atlasdb.performance.benchmarks;

import com.google.common.base.Preconditions;
import com.palantir.atlasdb.keyvalue.api.Cell;
import com.palantir.atlasdb.keyvalue.api.ColumnRangeSelection;
import com.palantir.atlasdb.keyvalue.api.RowColumnRangeIterator;
import com.palantir.atlasdb.keyvalue.api.Value;
import com.palantir.atlasdb.performance.benchmarks.table.Tables;
import com.palantir.atlasdb.performance.benchmarks.table.VeryWideRowTable;
import com.palantir.atlasdb.performance.benchmarks.table.WideRowsTable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Threads;
import org.openjdk.jmh.annotations.Warmup;
import org.openjdk.jmh.infra.Blackhole;

@State(Scope.Benchmark)
public class KvsGetRowsColumnRangeBenchmarks {

    @Benchmark
    @Threads(1)
    @Warmup(time = 16, timeUnit = TimeUnit.SECONDS)
    @Measurement(time = 160, timeUnit = TimeUnit.SECONDS)
    public Object getAllColumnsAligned(WideRowsTable table) {
        List rows = IntStream.rangeClosed(0, WideRowsTable.NUM_ROWS - 1)
                .mapToObj(WideRowsTable::getRow)
                .collect(Collectors.toList());
        RowColumnRangeIterator rowsColumnRange = table.getKvs()
                .getRowsColumnRange(
                        table.getTableRef(), rows, new ColumnRangeSelection(null, null), 10000, Long.MAX_VALUE);
        int expectedNumCells = WideRowsTable.NUM_ROWS * WideRowsTable.NUM_COLS_PER_ROW;
        List> loadedCells = new ArrayList<>(expectedNumCells);
        while (rowsColumnRange.hasNext()) {
            loadedCells.add(rowsColumnRange.next());
        }
        Preconditions.checkState(
                loadedCells.size() == expectedNumCells,
                "Should be %s cells, but were: %s",
                expectedNumCells,
                loadedCells.size());
        return loadedCells;
    }

    @Benchmark
    @Threads(1)
    @Warmup(time = 16, timeUnit = TimeUnit.SECONDS)
    @Measurement(time = 160, timeUnit = TimeUnit.SECONDS)
    public Object getAllColumnsUnaligned(WideRowsTable table) {
        List rows = IntStream.rangeClosed(0, WideRowsTable.NUM_ROWS - 1)
                .mapToObj(WideRowsTable::getRow)
                .collect(Collectors.toList());
        RowColumnRangeIterator rowsColumnRange = table.getKvs()
                .getRowsColumnRange(
                        table.getTableRef(), rows, new ColumnRangeSelection(null, null), 10017, Long.MAX_VALUE);
        int expectedNumCells = WideRowsTable.NUM_ROWS * WideRowsTable.NUM_COLS_PER_ROW;
        List> loadedCells = new ArrayList<>(expectedNumCells);
        while (rowsColumnRange.hasNext()) {
            loadedCells.add(rowsColumnRange.next());
        }
        Preconditions.checkState(
                loadedCells.size() == expectedNumCells,
                "Should be %s cells, but were: %s",
                expectedNumCells,
                loadedCells.size());
        return loadedCells;
    }

    @Benchmark
    @Threads(1)
    @Warmup(time = 16, timeUnit = TimeUnit.SECONDS)
    @Measurement(time = 160, timeUnit = TimeUnit.SECONDS)
    public Object getAllColumnsSingleBigRow(VeryWideRowTable table, Blackhole blackhole) {
        RowColumnRangeIterator iter = table.getKvs()
                .getRowsColumnRange(
                        table.getTableRef(),
                        Collections.singleton(Tables.ROW_BYTES.array()),
                        new ColumnRangeSelection(null, null),
                        10000,
                        Long.MAX_VALUE);
        int count = 0;
        while (iter.hasNext()) {
            blackhole.consume(iter.next());
            ++count;
        }
        Preconditions.checkState(
                count == table.getNumCols(), "Should be %s cells, but were: %s", table.getNumCols(), count);
        return count;
    }
}