diff -urN lmbench3/HOWTO lmbench3-bak/HOWTO
--- lmbench3/HOWTO	1970-01-01 08:00:00.000000000 +0800
+++ lmbench3-bak/HOWTO	2020-05-03 14:25:32.662989266 +0800
@@ -0,0 +1,7 @@
+For the reason that lmbench is not a packaging frindly software. 
+Put lmbench on /opt/lmbench dir which including all the contents. 
+
+if try to use it. just create a new dir and copy everything in the new dir
+and rum make.
+
+This is a stupid way, but anyway, this is a way