Best file system for better performance under heavy workload and simultaneous user access linux

Hi All,

We are currently using RHEL 5.8 (VM in VMware 5.0) with SAP installed in it.

We are setting up new servers from scratch. We have planned for RHEL 6.5 as per customer requirement.

OS: RHEL 6.5 servers

We will be using this server for SAP application and this OS will be on VMware VM.

EXT4 comes by default in RHEL 6.5. Would like to know whether we can go with EXT4 or with XFS.

Which is the best file system for for better performance under heavy workload and simultaneous user access linux

Thanks
Iyappan V