diff --git a/uppsrc/Core/Stream.cpp b/uppsrc/Core/Stream.cpp
index e69a0e353..2ecb34031 100644
--- a/uppsrc/Core/Stream.cpp
+++ b/uppsrc/Core/Stream.cpp
@@ -1103,14 +1103,14 @@ void CompareStream::Flush() {
 }
 
 void CompareStream::_Put(const void *data, dword size) {
-	wrlim = buffer + 128;
+	wrlim = buffer + sizeof(h);
 	ASSERT(ptr <= wrlim);
 	Flush();
 	pos += ptr - buffer;
 	ptr = buffer;
 	byte *b = (byte *) data;
 	while(size && equal) {
-		int sz = min<int>(size, 128);
+		int sz = min<int>(size, sizeof(h));
 		Compare(pos, b, sz);
 		pos += sz;
 		b += sz;
diff --git a/uppsrc/Core/Stream.h b/uppsrc/Core/Stream.h
index 1f57dc3d7..a55acc507 100644
--- a/uppsrc/Core/Stream.h
+++ b/uppsrc/Core/Stream.h
@@ -521,7 +521,7 @@ public:
 };
 
 class OutStream : public Stream {
-	byte     h[128];
+	byte     h[512];
 protected:
 	virtual  void  _Put(int w);
 	virtual  void  _Put(const void *data, dword size);
diff --git a/uppsrc/Core/Vcont.hpp b/uppsrc/Core/Vcont.hpp
index 885d627da..e438c49d4 100644
--- a/uppsrc/Core/Vcont.hpp
+++ b/uppsrc/Core/Vcont.hpp
@@ -24,18 +24,15 @@ void StreamContainer(Stream& s, T& cont)
 template <class T>
 dword HashBySerialize(const T& cont)
 {
-	RTIMING("HashBySerialize");
 	TimeStop tm;
 	xxHashStream xxh;
 	const_cast<T&>(cont).Serialize(xxh);
-	RLOG("Hash by serialize: " << typeid(T).name() << " " << tm);
 	return xxh.Finish();
 }
 
 template <class T>
 bool IsEqualBySerialize(const T& a, const T& b)
 {
-	RTIMING("IsEqualBySerialize");
 	StringStream sa, sb;
 	const_cast<T&>(a).Serialize(sa);
 	const_cast<T&>(b).Serialize(sb);
diff --git a/uppsrc/Core/xxHsh.cpp b/uppsrc/Core/xxHsh.cpp
index d2e79ce98..efadbba47 100644
--- a/uppsrc/Core/xxHsh.cpp
+++ b/uppsrc/Core/xxHsh.cpp
@@ -17,7 +17,6 @@ void xxHashStream::Reset(dword seed)
 
 void xxHashStream::Out(const void *data, dword size)
 {
-	RTIMING("xxHash");
 	XXH32_update((XXH32_state_t *)context, data, size);
 }