/**
*
* Copyright (c) 2006-2017, Speedment, 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.speedment.runtime.core.internal.stream.parallel;
import java.util.stream.IntStream;
/**
*
* @author pemi
*/
public final class ComputeIntensityUtil {
static IntStream repeatOnHalfAvailableProcessors(int item) {
return repeat(item, availableProcessors() / 2);
}
static int toThePowerOfTwo(int x) {
return 1 << x;
}
static int times256(int x) {
return x * 256;
}
static int availableProcessors() {
return Runtime.getRuntime().availableProcessors();
}
static IntStream repeat(int item, int times) {
return IntStream.generate(() -> item).limit(times);
}
private ComputeIntensityUtil() {
}
}