• ext4 filesystem

The ext4 filesystem is installed by default.

• XFS

Oracle Linux 6 includes XFS as an optional filesystem.

• ftrace

Ftrace is a tracing framework for analyzing performance and latency in the kernel.

• Performance Counters for Linux (PCL) and perf

The performance counter subsystem keeps track of hardware and software events without affecting performance and enables you to do tracing and performance analysis. Included is a tool called perf for analysis.

• Powertop

Powertop is a new user space tool that helps you reduce server power usage by identifying power hungry processes and by providing recommendations to lower power consumption.

• Latencytop

Latency can be defined as follows: an applications wants to run and execute code, but is blocked by the kernel because some required resource is not available. LatencyTOP is a Linux tool for software developers (both kernel and userspace), aimed at identifying where system latency occurs, and what kind of operation or action is causing the latency to happen. By identifying this, developers can then change the code to avoid the worst latency hiccups.

• Yum-only access to Unbreakable Linux Network (ULN)

Oracle Linux 6 not longer contains up2date for access to Unbreakable Linux Network. Instead packages are managed using Yum. To register with ULN, use the following command:

 # uln_register