/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
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package com.apple.jobjc;
import java.nio.ByteBuffer;
public class BenchUnsafe extends BaseBench{
final static int ITERS = 1000000;
final static NativeBuffer NBUF = new NativeBuffer(2 * ITERS);
final static ByteBuffer BBUF = NBUF.buffer;
final static long ADDR = NBUF.bufferPtr;
final static long ADDR_MAX = NBUF.bufferPtr + ITERS;
final static NativeBuffer NBUF2 = new NativeBuffer(2 * ITERS);
final static ByteBuffer BBUF2 = NBUF2.buffer;
final static long ADDR2 = NBUF2.bufferPtr;
final static long ADDR2_MAX = NBUF2.bufferPtr + ITERS;
final static long ARG = 345;
final static long BUFSIZE = BBUF.limit();
public void testIt(){
this.bench("Memory writes", 5, 3, 100L,
new Task("buffer.putLong"){
@Override public void run() {
for(long i = 0; i < ITERS; i++)
BBUF.putLong((int) i, ARG);
}},
new Task("unsafe.putLong"){
@Override public void run() {
for(long i = ADDR; i < ADDR_MAX; i++)
UNSAFE.putLong(i, ARG);
}});
}
}