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8259498: Reduce overhead of MD5 and SHA digests

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Reviewed-by: valeriep
This commit is contained in:
Claes Redestad 2021-01-20 23:45:55 +00:00
parent 27cc62a5c7
commit 35c9da7031
8 changed files with 305 additions and 576 deletions
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14
test/micro/org/openjdk/bench/java/util/UUIDBench.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2020, 2021, Oracle and/or its affiliates. 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
@ -37,6 +37,8 @@ public class UUIDBench {
@Param("20000")
private int size;
private byte[][] uuidBytes;
private UUID[] uuids;
private String[] uuidStrings;
@ -45,11 +47,14 @@ public class UUIDBench {
@Setup
public void setup() {
uuidBytes = new byte[size][];
uuids = new UUID[size];
uuidStrings = new String[size];
java.util.Random r = new java.util.Random(0);
for (int i = 0; i < this.uuidStrings.length; i++) {
final UUID uuid = UUID.randomUUID();
this.uuidBytes[i] = new byte[16];
r.nextBytes(this.uuidBytes[i]);
this.uuids[i] = uuid;
this.uuidStrings[i] = uuid.toString();
}
@ -72,4 +77,9 @@ public class UUIDBench {
public String toString() {
return uuids[index].toString();
}
@Benchmark
public UUID fromType3Bytes() {
return UUID.nameUUIDFromBytes(uuidBytes[index]);
}
}