Comparison of various Linux File Systems

Based on some references:
-Comparison of file systems-Wikipedia
-Linux File System benchmarks
-Benchmarking filesystems Part II
For mainstream Linux operating systems, such as ext2/3, JFS, reiserfs (V3/v4 ),
XFS made some evaluations and concluded that:

-Ext2 has good performance because it does not have the logging function-of course, it is not strong enough and secure.
-Ext3 has the worst performance (expect ext4)
-The average CPU usage of JFS is the lowest. If the system runs in a system with a limited CPU usage, consider using JFS
-Reiserfs has the lowest disk I/O bandwidth usage. If the system runs in a system with limited hard disk bandwidth, consider using reiserfs, especially reiserfs V4.
-XFS is between JFS and reiserfs, which is a good choice in various cases.