Java Memory Used usedMemoryRatio()

Description

used Memory Ratio

License

Apache License

Declaration

public final static double usedMemoryRatio() 

Method Source Code

//package com.java2s;
/*/*from w w w. j ava2 s. co m*/
 * Copyright (C) 2012 Ren? Jeschke <rene_jeschke@yahoo.de>
 *
 * 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.
 */

public class Main {
    public final static double usedMemoryRatio() {
        return (double) usedMemory() / (double) maxMemory();
    }

    public final static long usedMemory() {
        return Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
    }

    public final static long maxMemory() {
        return Runtime.getRuntime().maxMemory();
    }

    public final static long totalMemory() {
        return Runtime.getRuntime().totalMemory();
    }

    public final static long freeMemory() {
        return Runtime.getRuntime().freeMemory();
    }
}

Related

1. usedMemory(Runtime runtime)
2. usedMemoryAsString()
3. usedMemorym()
4. usedMemoryMB()
5. usedMemoryPercents()
6. useMemoryLimitOver()