From 32968af39c11e7e4e4ba47644548d90a61720af8 Mon Sep 17 00:00:00 2001
From: str4d <str4d@mail.i2p>
Date: Tue, 25 Jul 2017 03:43:04 +0000
Subject: [PATCH] Add benchmarks for AES and SHA-256
---
.../src/net/i2p/crypto/AESBenchmarks.java | 70 ++++++++++++++++
.../src/net/i2p/crypto/SHA256Benchmarks.java | 81 +++++++++++++++++++
.../src/net/i2p/crypto/SHA256Generator.java | 59 --------------
3 files changed, 151 insertions(+), 59 deletions(-)
create mode 100644 benchmarks/java/src/net/i2p/crypto/AESBenchmarks.java
create mode 100644 benchmarks/java/src/net/i2p/crypto/SHA256Benchmarks.java
diff --git a/benchmarks/java/src/net/i2p/crypto/AESBenchmarks.java b/benchmarks/java/src/net/i2p/crypto/AESBenchmarks.java
new file mode 100644
index 0000000000..160628fca5
--- /dev/null
+++ b/benchmarks/java/src/net/i2p/crypto/AESBenchmarks.java
@@ -0,0 +1,70 @@
+package net.i2p.crypto;
+
+import java.util.concurrent.TimeUnit;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Measurement;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Param;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.Warmup;
+import org.openjdk.jmh.runner.Runner;
+import org.openjdk.jmh.runner.RunnerException;
+import org.openjdk.jmh.runner.options.Options;
+import org.openjdk.jmh.runner.options.OptionsBuilder;
+
+import net.i2p.I2PAppContext;
+import net.i2p.data.DataHelper;
+import net.i2p.data.SessionKey;
+
+@BenchmarkMode(Mode.AverageTime)
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
+@Measurement(iterations = 5, time = 2, timeUnit = TimeUnit.SECONDS)
+@Fork(1)
+@State(Scope.Benchmark)
+public class AESBenchmarks {
+ I2PAppContext ctx = I2PAppContext.getGlobalContext();
+ SessionKey key;
+ CryptixAESEngine aes;
+ byte[] iv = new byte[16];
+ byte[] origPT = new byte[1024];
+ byte[] origCT = new byte[1024];
+ byte[] encrypted = new byte[1024];
+ byte[] decrypted = new byte[1024];
+
+ @Param({"512", "768", "1024"})
+ public int len;
+
+ @Setup
+ public void prepare() {
+ key = ctx.keyGenerator().generateSessionKey();
+ ctx.random().nextBytes(iv);
+ ctx.random().nextBytes(origPT);
+ aes = new CryptixAESEngine(ctx);
+ aes.encrypt(origPT, 0, origCT, 0, key, iv, len);
+ }
+
+ @Benchmark
+ public void encrypt() {
+ aes.encrypt(origPT, 0, encrypted, 0, key, iv, len);
+ }
+
+ @Benchmark
+ public void decrypt() {
+ aes.decrypt(origCT, 0, decrypted, 0, key, iv, len);
+ }
+
+ public static void main(String args[]) throws RunnerException {
+ Options opt = new OptionsBuilder()
+ .include(AESBenchmarks.class.getSimpleName())
+ .build();
+
+ new Runner(opt).run();
+ }
+}
diff --git a/benchmarks/java/src/net/i2p/crypto/SHA256Benchmarks.java b/benchmarks/java/src/net/i2p/crypto/SHA256Benchmarks.java
new file mode 100644
index 0000000000..6bc2084fe1
--- /dev/null
+++ b/benchmarks/java/src/net/i2p/crypto/SHA256Benchmarks.java
@@ -0,0 +1,81 @@
+package net.i2p.crypto;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.Random;
+import java.util.concurrent.TimeUnit;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Measurement;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Param;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.Warmup;
+import org.openjdk.jmh.runner.Runner;
+import org.openjdk.jmh.runner.RunnerException;
+import org.openjdk.jmh.runner.options.Options;
+import org.openjdk.jmh.runner.options.OptionsBuilder;
+
+/**
+ * Test the GNU and the JVM's implementations for speed
+ *
+ * Old results (2011-05):
+ * <ul>
+ * <li>eeepc Atom
+ * <li>100,000 runs
+ * <li>MessageDigest.getInstance time was included
+ * <li>One println included
+ * <li>Also shows GNU impl time (removed in 0.9.28)
+ * </ul><pre>
+ * JVM strlen GNU ms JVM ms
+ * Oracle 387 3861 3565
+ * Oracle 40 825 635
+ * Harmony 387 8082 5158
+ * Harmony 40 4137 1753
+ * JamVM 387 36301 34100
+ * JamVM 40 7022 6016
+ * gij 387 125833 4342
+ * gij 40 22417 988
+ * </pre>
+ */
+@BenchmarkMode(Mode.AverageTime)
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
+@Measurement(iterations = 5, time = 2, timeUnit = TimeUnit.SECONDS)
+@Fork(1)
+@State(Scope.Benchmark)
+public class SHA256Benchmarks {
+ MessageDigest md;
+
+ @Param({"40", "387", "10240"})
+ public int len;
+
+ byte[] data;
+
+ @Setup
+ public void prepare() throws NoSuchAlgorithmException {
+ md = MessageDigest.getInstance("SHA-256");
+ data = new byte[len];
+ Random r = new Random();
+ r.nextBytes(data);
+ }
+
+ @Benchmark
+ public byte[] digest() {
+ md.reset();
+ return md.digest(data);
+ }
+
+ public static void main(String args[]) throws RunnerException {
+ Options opt = new OptionsBuilder()
+ .include(SHA256Benchmarks.class.getSimpleName())
+ .build();
+
+ new Runner(opt).run();
+ }
+}
diff --git a/core/java/src/net/i2p/crypto/SHA256Generator.java b/core/java/src/net/i2p/crypto/SHA256Generator.java
index a03878c2f0..2a96b71817 100644
--- a/core/java/src/net/i2p/crypto/SHA256Generator.java
+++ b/core/java/src/net/i2p/crypto/SHA256Generator.java
@@ -92,63 +92,4 @@ public final class SHA256Generator {
throw new RuntimeException(e);
}
}
-
- //private static final int RUNS = 100000;
-
- /**
- * Test the GNU and the JVM's implementations for speed
- *
- * Results: 2011-05 eeepc Atom
- * <pre>
- * JVM strlen GNU ms JVM ms
- * Oracle 387 3861 3565
- * Oracle 40 825 635
- * Harmony 387 8082 5158
- * Harmony 40 4137 1753
- * JamVM 387 36301 34100
- * JamVM 40 7022 6016
- * gij 387 125833 4342
- * gij 40 22417 988
- * </pre>
- */
-/****
- public static void main(String args[]) {
- if (args.length <= 0) {
- System.err.println("Usage: SHA256Generator string");
- return;
- }
-
- byte[] data = args[0].getBytes();
- Sha256Standalone gnu = new Sha256Standalone();
- long start = System.currentTimeMillis();
- for (int i = 0; i < RUNS; i++) {
- gnu.update(data, 0, data.length);
- byte[] sha = gnu.digest();
- if (i == 0)
- System.out.println("SHA256 [" + args[0] + "] = [" + Base64.encode(sha) + "]");
- gnu.reset();
- }
- long time = System.currentTimeMillis() - start;
- System.out.println("Time for " + RUNS + " SHA-256 computations:");
- System.out.println("GNU time (ms): " + time);
-
- start = System.currentTimeMillis();
- MessageDigest md;
- try {
- md = MessageDigest.getInstance("SHA-256");
- } catch (NoSuchAlgorithmException e) {
- System.err.println("Fatal: " + e);
- return;
- }
- for (int i = 0; i < RUNS; i++) {
- md.reset();
- byte[] sha = md.digest(data);
- if (i == 0)
- System.out.println("SHA256 [" + args[0] + "] = [" + Base64.encode(sha) + "]");
- }
- time = System.currentTimeMillis() - start;
-
- System.out.println("JVM time (ms): " + time);
- }
-****/
}
--
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