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8255625: AArch64: Implement Base64.encodeBlock accelerator/intrinsic

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Reviewed-by: aph
This commit is contained in:
Dong Bo 2020-11-11 01:51:27 +00:00 • committed by Fei Yang
parent 5de99da75c
commit 8638cd9acf
3 changed files with 226 additions and 0 deletions
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test/micro/org/openjdk/bench/java/util/Base64Encode.java Normal file
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/*
* Copyright (c) 2020, Huawei Technologies Co. Ltd. All rights reserved.
* 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.
*
* 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).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package org.openjdk.micro.bench.java.util;
import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.infra.Blackhole;
import java.util.Base64;
import java.util.Random;
import java.util.ArrayList;
import java.util.concurrent.TimeUnit;
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@State(Scope.Thread)
public class Base64Encode {
private Base64.Encoder encoder;
private ArrayList<byte[]> unencoded;
private byte[] encoded;
private static final int TESTSIZE = 1000;
@Param({"1", "2", "3", "6", "7", "9", "10", "48", "512", "1000", "20000"})
private int maxNumBytes;
@Setup
public void setup() {
Random r = new Random(1123);
int dstLen = ((maxNumBytes + 16) / 3) * 4;
encoder = Base64.getEncoder();
unencoded = new ArrayList<byte[]> ();
encoded = new byte[dstLen];
for (int i = 0; i < TESTSIZE; i++) {
int srcLen = 1 + r.nextInt(maxNumBytes);
byte[] src = new byte[srcLen];
r.nextBytes(src);
unencoded.add(src);
}
}
@Benchmark
@OperationsPerInvocation(TESTSIZE)
public void testBase64Encode(Blackhole bh) {
for (byte[] s : unencoded) {
encoder.encode(s, encoded);
bh.consume(encoded);
}
}
}