Added option to enable format benchmarks

src/ProtoBench/Program.cs

@@ -53,7 +53,7 @@ namespace Google.ProtocolBuffers.ProtoBench
     {
         private static TimeSpan MinSampleTime = TimeSpan.FromSeconds(2);
         private static TimeSpan TargetTime = TimeSpan.FromSeconds(30);
-        private static bool Verbose = false, FastTest = false;
+        private static bool Verbose = false, FastTest = false, OtherFormats = false;
         // Avoid a .NET 3.5 dependency
         private delegate void Action();
 
@@ -67,6 +67,7 @@ namespace Google.ProtocolBuffers.ProtoBench
             List<string> temp = new List<string>(args);
 
             Verbose = temp.Remove("/verbose") || temp.Remove("-verbose");
+            OtherFormats = temp.Remove("/formats") || temp.Remove("-formats");
 
             if (true == (FastTest = (temp.Remove("/fast") || temp.Remove("-fast"))))
                 TargetTime = TimeSpan.FromSeconds(10);
@@ -132,7 +133,10 @@ namespace Google.ProtocolBuffers.ProtoBench
                 ByteString inputString = ByteString.CopyFrom(inputData);
                 IMessage sampleMessage = defaultMessage.WeakCreateBuilderForType().WeakMergeFrom(inputString, registry).WeakBuild();
 
-                byte[] jsonBytes, xmlBytes;/*no pun intended, well... maybe for xml*/
+                IDictionary<string, object> dictionary = null;
+                byte[] jsonBytes = null, xmlBytes = null;/*no pun intended, well... maybe for xml*/
+                if (OtherFormats)
+                {
                     using (MemoryStream temp = new MemoryStream())
                     {
                         XmlFormatWriter.CreateInstance(temp).WriteMessage(sampleMessage);
@@ -143,8 +147,9 @@ namespace Google.ProtocolBuffers.ProtoBench
                         JsonFormatWriter.CreateInstance(temp).WriteMessage(sampleMessage);
                         jsonBytes = temp.ToArray();
                     }
-                IDictionary<string, object> dictionary = new Dictionary<string, object>(StringComparer.Ordinal);
+                    dictionary = new Dictionary<string, object>(StringComparer.Ordinal);
                     new DictionaryWriter(dictionary).WriteMessage(sampleMessage);
+                }
 
                 //Serializers
                 if(!FastTest) RunBenchmark("Serialize to byte string", inputData.Length, () => sampleMessage.ToByteString());
@@ -152,10 +157,12 @@ namespace Google.ProtocolBuffers.ProtoBench
                 if (!FastTest) RunBenchmark("Serialize to memory stream", inputData.Length,
                           () => sampleMessage.WriteTo(new MemoryStream()));
 
+                if (OtherFormats)
+                {
                     RunBenchmark("Serialize to xml", xmlBytes.Length, () =>
                     {
                         XmlFormatWriter.CreateInstance(new MemoryStream(), Encoding.UTF8).WriteMessage(sampleMessage);
-                } );
+                    });
                     RunBenchmark("Serialize to json", jsonBytes.Length, () =>
                     {
                         JsonFormatWriter.CreateInstance().WriteMessage(sampleMessage);
@@ -168,7 +175,7 @@ namespace Google.ProtocolBuffers.ProtoBench
                     );
 
                     RunBenchmark("Serialize to dictionary", sampleMessage.SerializedSize, () => new DictionaryWriter().WriteMessage(sampleMessage));
-
+                }
                 //Deserializers
                 if (!FastTest) RunBenchmark("Deserialize from byte string", inputData.Length,
                           () => defaultMessage.WeakCreateBuilderForType()
@@ -189,6 +196,8 @@ namespace Google.ProtocolBuffers.ProtoBench
                           .WeakBuild();
                   });
 
+                if (OtherFormats)
+                {
                     RunBenchmark("Deserialize from xml", xmlBytes.Length, () => XmlFormatReader.CreateInstance(xmlBytes).Merge(defaultMessage.WeakCreateBuilderForType()).WeakBuild());
                     RunBenchmark("Deserialize from json", jsonBytes.Length, () => JsonFormatReader.CreateInstance(jsonBytes).Merge(defaultMessage.WeakCreateBuilderForType()).WeakBuild());
                     RunBenchmark("Deserialize from json via xml", jsonBytes.Length,
@@ -196,7 +205,7 @@ namespace Google.ProtocolBuffers.ProtoBench
                             .SetOptions(XmlReaderOptions.ReadNestedArrays).Merge(defaultMessage.WeakCreateBuilderForType()).WeakBuild());
 
                     RunBenchmark("Deserialize from dictionary", sampleMessage.SerializedSize, () => new DictionaryReader(dictionary).Merge(defaultMessage.WeakCreateBuilderForType()).WeakBuild());
-
+                }
                 Console.WriteLine();
                 return true;
             }