diff --git a/actypes.d b/actypes.d
index f788250..435e892 100644
--- a/actypes.d
+++ b/actypes.d
@@ -98,6 +98,23 @@ public:
         return this.opCmp(other.name);
     }
 
+	/**
+	 * Gets all parts whose name matches the given string.
+	 */
+	const(ACSymbol)*[] getPartsByName(string name) const
+	{
+		return cast(typeof(return)) parts.filter!(a => a.name == name).array;
+	}
+
+	size_t estimateMemory(size_t runningTotal) const
+	{
+		runningTotal = runningTotal + name.length + callTip.length
+			+ ACSymbol.sizeof;
+		foreach (part; parts)
+			runningTotal = part.estimateMemory(runningTotal);
+		return runningTotal;
+	}
+
 	/**
 	 * Symbols that compose this symbol, such as enum members, class variables,
 	 * methods, etc.
@@ -109,15 +126,25 @@ public:
 	 */
 	string name;
 
+	/**
+	 * Calltip to display if this is a function
+	 */
+	string callTip;
+
+	/**
+	 * Module containing the symbol.
+	 */
+	string symbolFile;
+
 	/**
 	 * The symbol that represents the type.
 	 */
 	const(ACSymbol)* type;
 
 	/**
-	 * Calltip to display if this is a function
+	 * Symbol location
 	 */
-	string callTip;
+	size_t location;
 
 	/**
 	 * The kind of symbol
@@ -128,24 +155,6 @@ public:
 	 * Symbol qualifier
 	 */
 	SymbolQualifier qualifier;
-
-	/**
-	 * Symbol location
-	 */
-	size_t location;
-
-	/**
-	 * Module containing the symbol.
-	 */
-	string symbolFile;
-
-	/**
-	 * Gets all parts whose name matches the given string.
-	 */
-	const(ACSymbol)*[] getPartsByName(string name) const
-	{
-		return cast(typeof(return)) parts.filter!(a => a.name == name).array;
-	}
 }
 
 struct Scope
@@ -318,6 +327,28 @@ static this()
 	builtinSymbols = [bool_, int_, long_, byte_, char_, dchar_, short_, ubyte_, uint_,
 		ulong_, ushort_, wchar_, cdouble_, cent_, cfloat_, creal_, double_,
 		float_, idouble_, ifloat_, ireal_, real_, ucent_, void_];
+
+	// _argptr has type void*
+	argptrType = new Type;
+	argptrType.type2 = new Type2;
+	argptrType.type2.builtinType = TokenType.void_;
+	TypeSuffix argptrTypeSuffix = new TypeSuffix;
+	argptrTypeSuffix.star = true;
+	argptrType.typeSuffixes ~= argptrTypeSuffix;
+
+	// _arguments has type TypeInfo[]
+	argumentsType = new Type;
+	argumentsType = new Type;
+	argumentsType.type2 = new Type2;
+	argumentsType.type2.symbol = new Symbol;
+	argumentsType.type2.symbol.identifierOrTemplateChain = new IdentifierOrTemplateChain;
+	IdentifierOrTemplateInstance i = new IdentifierOrTemplateInstance;
+	i.identifier.value = "TypeInfo";
+	i.identifier.type = TokenType.identifier;
+	argumentsType.type2.symbol.identifierOrTemplateChain.identifiersOrTemplateInstances ~= i;
+	TypeSuffix argumentsTypeSuffix = new TypeSuffix;
+	argumentsTypeSuffix.array = true;
+	argumentsType.typeSuffixes ~= argptrTypeSuffix;
 }
 
 const(ACSymbol)*[] builtinSymbols;
@@ -325,3 +356,5 @@ const(ACSymbol)*[] arraySymbols;
 const(ACSymbol)*[] assocArraySymbols;
 const(ACSymbol)*[] classSymbols;
 const(ACSymbol)*[] structSymbols;
+Type argptrType;
+Type argumentsType;
diff --git a/astconverter.d b/astconverter.d
index feff926..dfec652 100644
--- a/astconverter.d
+++ b/astconverter.d
@@ -62,6 +62,19 @@ final class FirstPass : ASTVisitor
 	void run()
 	{
 		visit(mod);
+		mod = null;
+	}
+
+	override void visit(Unittest u)
+	{
+		// Create a dummy symbol because we don't want unit test symbols leaking
+		// into the symbol they're declared in.
+		SemanticSymbol* s = new SemanticSymbol("*unittest*",
+			CompletionKind.dummy, null, 0);
+		s.parent = currentSymbol;
+		currentSymbol = s;
+		u.accept(this);
+		currentSymbol = s.parent;
 	}
 
     override void visit(Constructor con)
@@ -388,6 +401,20 @@ private:
 				symbol.addChild(parameter);
 				parameter.parent = symbol;
 			}
+			if (parameters.hasVarargs)
+			{
+				SemanticSymbol* argptr = new SemanticSymbol("_argptr",
+					CompletionKind.variableName, null, 0);
+				argptr.type = argptrType;
+				argptr.parent = symbol;
+				symbol.addChild(argptr);
+
+				SemanticSymbol* arguments = new SemanticSymbol("_arguments",
+					CompletionKind.variableName, null, 0);
+				arguments.type = argumentsType;
+				arguments.parent = symbol;
+				symbol.addChild(arguments);
+			}
 		}
 		symbol.acSymbol.callTip = formatCallTip(returnType, functionName,
 			parameters);
@@ -695,22 +722,29 @@ const(ACSymbol)*[] convertAstToSymbols(Module m, string symbolFile)
 {
     FirstPass first = new FirstPass(m, symbolFile);
 	first.run();
+
     SecondPass second = SecondPass(first.rootSymbol, first.moduleScope);
 	second.run();
+
 	ThirdPass third = ThirdPass(second.rootSymbol, second.moduleScope);
 	third.run();
+
     return cast(typeof(return)) third.rootSymbol.acSymbol.parts;
 }
 
 const(Scope)* generateAutocompleteTrees(const(Token)[] tokens, string symbolFile)
 {
 	Module m = parseModule(tokens, null);
+
 	FirstPass first = new FirstPass(m, symbolFile);
 	first.run();
+
 	SecondPass second = SecondPass(first.rootSymbol, first.currentScope);
 	second.run();
+
 	ThirdPass third = ThirdPass(second.rootSymbol, second.moduleScope);
 	third.run();
+
 	return cast(typeof(return)) third.moduleScope;
 }
 
@@ -731,7 +765,7 @@ string[] iotcToStringArray(const IdentifierOrTemplateChain iotc)
 
 private static string convertChainToImportPath(IdentifierChain chain)
 {
-	return to!string(chain.identifiers.map!(a => a.value.dup).join(dirSeparator).array) ~ ".d";
+	return to!string(chain.identifiers.map!(a => a.value).join(dirSeparator).array) ~ ".d";
 }
 
 version(unittest) Module parseTestCode(string code)
diff --git a/build.sh b/build.sh
index 1c0d5f6..a047116 100755
--- a/build.sh
+++ b/build.sh
@@ -2,6 +2,10 @@ dmd -wi client.d\
 	messages.d\
 	msgpack-d/src/msgpack.d\
 	-Imsgpack-d/src\
+	-release\
+	-inline\
+	-noboundscheck\
+	-O\
 	-ofdcd-client
 
 dmd \
diff --git a/modulecache.d b/modulecache.d
index aa4ca88..280033d 100644
--- a/modulecache.d
+++ b/modulecache.d
@@ -60,6 +60,18 @@ struct ModuleCache
 		cache = cache.init;
 	}
 
+	static void estimateMemory()
+	{
+		size_t estimate = 0;
+		foreach (c; cache)
+		{
+			foreach (symbol; c.symbols)
+				estimate = symbol.estimateMemory(estimate);
+		}
+		double megabytes = estimate / (1024.0F * 1024.0F);
+		Log.info("Memory use estimated at ", megabytes, " megabytes");
+	}
+
 	/**
 	 * Adds the given path to the list of directories checked for imports
 	 */
@@ -78,7 +90,6 @@ struct ModuleCache
 		{
 			foreach (fileName; dirEntries(path, "*.{d,di}", SpanMode.depth))
 			{
-				Log.info("Loading and caching completions for ", fileName);
 				getSymbolsInModule(fileName);
 			}
 		}
@@ -92,7 +103,7 @@ struct ModuleCache
 	 */
 	static const(ACSymbol)*[] getSymbolsInModule(string moduleName)
 	{
-//		Log.info("Getting symbols for module ", moduleName);
+
 		string location = resolveImportLoctation(moduleName);
 		if (location is null)
 			return [];
@@ -104,6 +115,8 @@ struct ModuleCache
 			return [];
 		}
 
+		Log.info("Getting symbols for module ", moduleName);
+
 		recursionGuard[location] = true;
 
 		const(ACSymbol)*[] symbols;
@@ -131,9 +144,6 @@ struct ModuleCache
 		CacheEntry c = CacheEntry(symbols, modification);
 		cache[location] = c;
 		recursionGuard[location] = false;
-		import core.memory;
-		GC.collect();
-		GC.minimize();
 		return symbols;
 	}
 
diff --git a/semantic.d b/semantic.d
index 85c1d2d..b9796e5 100644
--- a/semantic.d
+++ b/semantic.d
@@ -42,11 +42,6 @@ public:
 		acSymbol.symbolFile = symbolFile;
 	}
 
-	~this()
-	{
-		Log.trace(acSymbol.name, " destructor");
-	}
-
 	void addChild(SemanticSymbol* child)
 	{
 		children ~= child;
diff --git a/server.d b/server.d
index 0e9853f..d6c0402 100644
--- a/server.d
+++ b/server.d
@@ -98,6 +98,7 @@ int main(string[] args)
 
 	sw.stop();
 	Log.info("Startup completed in ", sw.peek().to!("msecs", float), " milliseconds");
+	ModuleCache.estimateMemory();
 
 	while (true)
 	{
@@ -114,8 +115,6 @@ int main(string[] args)
             continue;
         }
 
-        // TODO: Only process connections from localhost
-
 		scope (exit)
 		{
 			s.shutdown(SocketShutdown.BOTH);