Changeset 32968af

Timestamp:

Jul 25, 2017 3:43:04 AM (4 years ago)

Author:

str4d <str4d@…>

Branches:

master

Children:

f9b8a5ec

Parents:

49ed170

Message:

Add benchmarks for AES and SHA-256

Files:

• benchmarks/java/src/net/i2p/crypto/AESBenchmarks.java (added)
• benchmarks/java/src/net/i2p/crypto/SHA256Benchmarks.java (added)
• core/java/src/net/i2p/crypto/SHA256Generator.java (modified) (1 diff)

core/java/src/net/i2p/crypto/SHA256Generator.java

@@ -93 +93 @@
         }
     }
-
-    //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);
-    }
-****/
 }