refactor(example): update benchmark page

packages/native_crypto/example/lib/pages/benchmark_page.dart

@@ -3,10 +3,11 @@
 // -----
 // File: benchmark_page.dart
 // Created Date: 28/12/2021 15:12:39
-// Last Modified: 25/05/2022 15:26:42
+// Last Modified: 25/05/2022 17:16:12
 // -----
 // Copyright (c) 2021
 
+import 'dart:math';
 import 'dart:typed_data';
 
 import 'package:flutter/material.dart';
@@ -24,10 +25,12 @@ class BenchmarkPage extends ConsumerWidget {
   final Output keyContent = Output();
   final Output benchmarkStatus = Output(large: true);
 
-  Future<void> _benchmarkEncryptionOnly(
+  Future<void> _benchmark(
     WidgetRef ref,
-    Cipher cipher,
+    Cipher cipher, {
-  ) async {
+    bool usePc = false,
+    bool encryptionOnly = false,
+  }) async {
     Session state = ref.read(sessionProvider.state).state;
     AesGcm pc = AesGcm();
 
@@ -37,79 +40,47 @@ class BenchmarkPage extends ConsumerWidget {
       return;
     }
 
-    benchmarkStatus.print("Benchmark 2/4/8/16/32/64/128/256MB\n");
+    List<int> testedSizes = [2, 6, 10, 14, 18, 22, 26, 30, 34, 38, 42, 46, 50];
-    List<int> testedSizes = [2, 4, 8, 16, 32, 64, 128, 256];
+    int multiplier = pow(2, 20).toInt(); // MiB
-    String csv = "size;encryption time\n";
 
+    benchmarkStatus.print("[Benchmark] Sizes: ${testedSizes.join('/')}MiB\n");
+    benchmarkStatus.appendln(
+        "[Benchmark] Engine: " + (usePc ? " PointyCastle" : " NativeCrypto"));
+    benchmarkStatus.appendln("[Benchmark] Test: " +
+        (encryptionOnly ? " Encryption Only" : " Encryption & Decryption"));
+    benchmarkStatus.appendln(
+        '[Benchmark] bytesCountPerChunk: ${Cipher.bytesCountPerChunk} bytes/chunk');
+
+    String csv = encryptionOnly
+        ? "Run;Size (B);Encryption Time (ms)\n"
+        : "Run;Size (B);Encryption Time (ms);Decryption Time (ms)\n";
+
+    int run = 0;
     var beforeBench = DateTime.now();
-    Cipher.bytesCountPerChunk = Cipher.bytesCountPerChunk;
+
-    benchmarkStatus
-        .append('[Benchmark] ${Cipher.bytesCountPerChunk} bytes/chunk \n');
     for (int size in testedSizes) {
-      var b = Uint8List(size * 1000000);
+      run++;
-      csv += "${size * 1000000};";
+      final StringBuffer csvLine = StringBuffer();
+      final dummyBytes = Uint8List(size * multiplier);
+      csvLine.write('$run;${size * multiplier};');
 
       // Encryption
-      var before = DateTime.now();
-      var encryptedBigFile = await cipher.encrypt(b);
-      var after = DateTime.now();
-
-      var benchmark =
-          after.millisecondsSinceEpoch - before.millisecondsSinceEpoch;
-      benchmarkStatus.append('[$size MB] Encryption took $benchmark ms\n');
-
-      csv += "$benchmark\n";
-    }
-    var afterBench = DateTime.now();
-    var benchmark =
-        afterBench.millisecondsSinceEpoch - beforeBench.millisecondsSinceEpoch;
-    var sum = testedSizes.reduce((a, b) => a + b);
-    benchmarkStatus.append(
-        'Benchmark finished.\nGenerated, and encrypted $sum MB in $benchmark ms');
-    debugPrint("[Benchmark cvs]\n$csv");
-  }
-
-  Future<void> _benchmark(WidgetRef ref, Cipher cipher,
-      {bool usePc = false}) async {
-    Session state = ref.read(sessionProvider.state).state;
-    AesGcm pc = AesGcm();
-
-    if (state.secretKey.bytes.isEmpty) {
-      benchmarkStatus
-          .print('No SecretKey!\nGo in Key tab and generate or derive one.');
-      return;
-    }
-
-    benchmarkStatus.print("Benchmark 2/4/8/16/32/64/128/256MB\n");
-    List<int> testedSizes = [2, 4, 8, 16, 32, 64, 128, 256];
-    String csv = "size;encryption time;decryption time;crypto time\n";
-
-    var beforeBench = DateTime.now();
-    Cipher.bytesCountPerChunk = Cipher.bytesCountPerChunk;
-    benchmarkStatus
-        .append('[Benchmark] ${Cipher.bytesCountPerChunk} bytes/chunk \n');
-    for (int size in testedSizes) {
-      var b = Uint8List(size * 1000000);
-      csv += "${size * 1000000};";
-      var cryptoTime = 0;
-
-      // Encryption
-      var before = DateTime.now();
       Object encryptedBigFile;
+      var before = DateTime.now();
       if (usePc) {
-        encryptedBigFile = pc.encrypt(b, state.secretKey.bytes);
+        encryptedBigFile = pc.encrypt(dummyBytes, state.secretKey.bytes);
       } else {
-        encryptedBigFile = await cipher.encrypt(b);
+        encryptedBigFile = await cipher.encrypt(dummyBytes);
       }
       var after = DateTime.now();
 
       var benchmark =
           after.millisecondsSinceEpoch - before.millisecondsSinceEpoch;
-      benchmarkStatus.append('[$size MB] Encryption took $benchmark ms\n');
+      benchmarkStatus
-
+          .appendln('[Benchmark] ${size}MiB => Encryption took $benchmark ms');
-      csv += "$benchmark;";
+      csvLine.write('$benchmark');
-      cryptoTime += benchmark;
 
+      if (!encryptionOnly) {
         // Decryption
         before = DateTime.now();
         if (usePc) {
@@ -118,21 +89,23 @@ class BenchmarkPage extends ConsumerWidget {
           await cipher.decrypt(encryptedBigFile as CipherText);
         }
         after = DateTime.now();
-
+        benchmark =
-      benchmark = after.millisecondsSinceEpoch - before.millisecondsSinceEpoch;
+            after.millisecondsSinceEpoch - before.millisecondsSinceEpoch;
-      benchmarkStatus.append('[$size MB] Decryption took $benchmark ms\n');
+        benchmarkStatus
-
+            .appendln('[Benchmark] ${size}MiB => Decryption took $benchmark ms');
-      csv += "$benchmark;";
+        csvLine.write(';$benchmark');
-      cryptoTime += benchmark;
+      }
-      csv += "$cryptoTime\n";
+      csv += csvLine.toString() + '\n';
     }
     var afterBench = DateTime.now();
     var benchmark =
         afterBench.millisecondsSinceEpoch - beforeBench.millisecondsSinceEpoch;
     var sum = testedSizes.reduce((a, b) => a + b);
-    benchmarkStatus.append(
+    benchmarkStatus
-        'Benchmark finished.\nGenerated, encrypted and decrypted $sum MB in $benchmark ms');
+        .appendln('[Benchmark] Finished: ${sum}MiB in $benchmark ms');
-    debugPrint("[Benchmark cvs]\n$csv");
+    benchmarkStatus.appendln('[Benchmark] Check the console for csv data');
+    benchmarkStatus.appendln(csv);
+    print(csv);
   }
 
   void _clear() {
@@ -174,37 +147,39 @@ class BenchmarkPage extends ConsumerWidget {
               alignment: Alignment.centerLeft,
             ),
             keyContent,
-            Column(
+            Wrap(
-              crossAxisAlignment: CrossAxisAlignment.start,
-              children: [
-                Row(
-                  mainAxisAlignment: MainAxisAlignment.spaceEvenly,
               children: [
                 Button(
                   () => _benchmark(ref, cipher),
                   "NativeCrypto",
                 ),
+                const SizedBox(width: 8),
                 Button(
                   () => _benchmark(ref, cipher, usePc: true),
                   "PointyCastle",
                 ),
-                  ],
+                const SizedBox(width: 8),
-                ),
-                Row(
-                  mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-                  children: [
                 Button(
-                      () => _benchmarkEncryptionOnly(ref, cipher),
+                  () => _benchmark(ref, cipher, encryptionOnly: true),
-                      "NC Persistence",
+                  "NC Encryption Only",
                 ),
+                const SizedBox(width: 8),
+                Button(
+                  () => _benchmark(
+                    ref,
+                    cipher,
+                    usePc: true,
+                    encryptionOnly: true,
+                  ),
+                  "PC Encryption Only",
+                ),
+                const SizedBox(width: 8),
                 Button(
                   _clear,
                   "Clear",
                 ),
               ],
             ),
-              ],
-            ),
             benchmarkStatus,
           ],
         ),

packages/native_crypto/example/lib/widgets/output.dart

@@ -3,7 +3,7 @@
 // -----
 // File: output.dart
 // Created Date: 28/12/2021 13:31:39
-// Last Modified: 28/12/2021 14:12:11
+// Last Modified: 25/05/2022 16:39:39
 // -----
 // Copyright (c) 2021