diff --git a/example/example.cpp b/example/example.cpp
index fd434a2b..744a5ca9 100644
--- a/example/example.cpp
+++ b/example/example.cpp
@@ -29,14 +29,14 @@ int main(int argc, char* argv[])
 
     cout_logger.info() << "Hello cout logger!";
 
-
     logger my_logger ("my_logger", {null_sink});
 
+	std::string s(100, '0');
+	const unsigned int howmany = 5000000;
     auto start = system_clock::now();
-
-    const unsigned int howmany = 5000000;
     for(unsigned int i = 0; i < howmany ; i++)
-        my_logger.info() << "Hello logger " << i;
+		my_logger.info() << s;
+        //my_logger.info() << "Hello logger " << i;;
 
     //async->shutdown(seconds(3));
     auto delta = system_clock::now() - start;
diff --git a/include/c11log/details/fast_oss.h b/include/c11log/details/fast_oss.h
index 33b12a26..4da16744 100644
--- a/include/c11log/details/fast_oss.h
+++ b/include/c11log/details/fast_oss.h
@@ -71,7 +71,7 @@ protected:
     }
 private:
     //std::string _str;
-    fast_buf<128> _fastbuf;
+    fast_buf<192> _fastbuf;
 };
 
 class fast_oss:public std::ostream