[LOADED_DOCS: 2 files, no new loads]

Optimize FastWire string (de)serialization and benchmarks

- Increased release benchmark iterations for more robust testing.
- Improved FastWire string deserialization with zero-copy UTF-16.
- Set FastWire and string caching options during context init/reset.
- Optimized FastWire string serialization for direct UTF-16 copy.
- Enhanced non-ASCII string fallback to use Utf8NoBom encoding.
- Refactored WriteFixStr for efficient ASCII and fallback handling.

AyCode.Core.Serializers.Console/Program.cs

@@ -45,8 +45,8 @@ public static class Program
     private static int TestIterations = 1;
     private static int BenchmarkSamples = 1;       // Debug: single sample, fast iteration
 #else
-    private static int WarmupIterations = 100; //5000
-    private static int TestIterations = 10; //1000
+    private static int WarmupIterations = 5000; //5000
+    private static int TestIterations = 1000; //1000
     private static int BenchmarkSamples = 3;
 #endif
 

AyCode.Core/Serializers/Binaries/AcBinaryDeserializer.BinaryDeserializationContext.Read.cs

@@ -365,8 +365,10 @@ public static partial class AcBinaryDeserializer
             {
                 var byteLen = length * 2;
                 EnsureAvailable(byteLen);
+
                 var chars = MemoryMarshal.Cast<byte, char>(_buffer.AsSpan(_position, byteLen));
                 var value = new string(chars);
+
                 _position += byteLen;
                 return value;
             }

AyCode.Core/Serializers/Binaries/AcBinaryDeserializer.BinaryDeserializationContext.cs

@@ -152,13 +152,17 @@ public static partial class AcBinaryDeserializer
         {
             Input = input;
             Input.Initialize(out _buffer, out _position, out _bufferLength);
+
             _useStringCaching = Options.UseStringCaching;
             _maxCachedStringLength = Options.MaxCachedStringLength;
+
             if (_useStringCaching) GetOrCreateStringCache();
+
             _internCache = null;
             HasMetadata = false;
             IsMergeMode = false;
             RemoveOrphanedItems = false;
+
             FastWire = Options.WireMode == WireMode.Fast;
             ChainTracker = null;
         }

AyCode.Core/Serializers/Binaries/AcBinarySerializer.BinarySerializationContext.cs

@@ -290,9 +290,12 @@ public static partial class AcBinarySerializer
         {
             // IMPORTANT: base.Reset sets Options first, so derived code can use Options-derived properties
             base.Reset(options);
+
             HasPropertyFilter = Options.PropertyFilter != null;
+
             InternBit = 1 << (int)Options.UseStringInterning;
             HasStringInterning = Options.UseStringInterning != StringInterningMode.None;
+
             FastWire = Options.WireMode == WireMode.Fast;
         }
 
@@ -658,10 +661,13 @@ public static partial class AcBinarySerializer
                 // UTF-16: char count (VarUInt) + raw char data (zero-encoding memcopy)
                 var charLen = value.Length;
                 var byteLen = charLen * 2;
+
                 WriteVarUInt((uint)charLen);
                 EnsureCapacity(byteLen);
+
                 MemoryMarshal.AsBytes(value.AsSpan()).CopyTo(_buffer.AsSpan(_position, byteLen));
                 _position += byteLen;
+
                 return;
             }
 
@@ -681,9 +687,11 @@ public static partial class AcBinarySerializer
 
             // Non-ASCII fallback: safe rewind (no Grow happened since pre-allocate)
             _position = savedPosition;
+
             var byteCount = Utf8NoBom.GetByteCount(value);
             EnsureCapacity(VarUIntSize((uint)byteCount) + byteCount);
             WriteVarUIntUnsafe((uint)byteCount);
+
             Utf8NoBom.GetBytes(value.AsSpan(), _buffer.AsSpan(_position, byteCount));
             _position += byteCount;
         }
@@ -699,25 +707,21 @@ public static partial class AcBinarySerializer
 
         public void WriteFixStrDirect(string value)
         {
-            // Compute UTF-8 byte count up front. FixStr opcode encodes byte count (5-bit field, ≤31).
-            // For ASCII: byte count = char count; for non-ASCII: byte count > char count.
-            // Bonus over the prior ASCII-only path: short non-ASCII strings (e.g. 8-char Hungarian
-            // ≈ 12 bytes) now also fit in FixStr and save the String-marker + VarUInt overhead.
-            var byteCount = Utf8NoBom.GetByteCount(value);
-            if (byteCount <= BinaryTypeCode.FixStrMaxLength)
+            var length = value.Length;
+            EnsureCapacity(1 + length);
+
+            var destSpan = _buffer.AsSpan(_position + 1, length);
+            var status = Ascii.FromUtf16(value.AsSpan(), destSpan, out var bytesWritten);
+
+            if (status == OperationStatus.Done && bytesWritten == length)
             {
-                EnsureCapacity(1 + byteCount);
-                _buffer[_position++] = BinaryTypeCode.EncodeFixStr(byteCount);
-                Utf8NoBom.GetBytes(value.AsSpan(), _buffer.AsSpan(_position, byteCount));
-                _position += byteCount;
+                _buffer[_position] = BinaryTypeCode.EncodeFixStr(length);
+                _position += 1 + length;
             }
             else
             {
                 _buffer[_position++] = BinaryTypeCode.String;
-                EnsureCapacity(VarUIntSize((uint)byteCount) + byteCount);
-                WriteVarUIntUnsafe((uint)byteCount);
-                Utf8NoBom.GetBytes(value.AsSpan(), _buffer.AsSpan(_position, byteCount));
-                _position += byteCount;
+                WriteStringUtf8Internal(value);
             }
         }