Solution : https://service.sap.com/sap/support/notes/2013638 (SAP Service marketplace login required)
Summary : 
      SAP Note discusses optimal settings for SAP HANA on RHEL 6.5, detailing configurations to enhance performance and stability. Key adjustments include disabling Transparent HugePages to prevent performance issues due to HANA's memory management and configuring C-States for lower latency. Additionally, the note advises on upgrading OpenSSL to mitigate the Heartbleed vulnerability and installing GCC 4.7 runtime for compatibility. Modification of SELinux settings is required as default SELinux policies do not support HANA. Users must have root access to implement these changes, and all configurations should be handled carefully in scale-out environments.
Key words : 
components bc-op-lnx-rh red hat linux priority recommendations / additional info category customizing validity software componentfrom rel, sles 11 1943937   hardware configuration check tool - central note 1890444   slow hana system due, 3rd-party linux kernel drivers selinuxred hat enterprise linux 6, cat /sys/devices/system/cpu/cpuidle/current_driverthe correct, rhel-x86_64-server-sap-hana-6 rhel server sap hana, customer component han-db sap hana database, cpu power save mode 1888072   sap hana db, additional 3rd-party binary kernel modules, central note 1496410   red hat enterprise linux 6, “red hat enterprise linux server
Related Notes : 
       
| 2005955 | |
| 2001528 | Linux: SAP HANA Database SPS 08 revision 80 (or higher) on RHEL 6 or SLES 11 | 
| 784391 | SAP support terms and 3rd-party Linux kernel drivers | 
| 1943937 | Hardware Configuration Check Tool - Central Note | 
| 1890444 | Slow HANA system due to CPU power save mode | 
| 1888072 | SAP HANA DB: Indexserver crash in __strcmp_sse42 | 
| 1523337 | SAP In-Memory Database 1.0: Central Note | 
| 1514967 | SAP HANA 1.0: Central Note | 
| 1496410 | Red Hat Enterprise Linux 6.x: Installation and Upgrade | 
| 2009879 | SAP HANA Guidelines for Red Hat Enterprise Linux (RHEL) Operating System |