# tuned-adm list Available profiles: - balanced - General non-specialized tuned profile - desktop - Optimize for the desktop use-case - latency-performance - Optimize for deterministic performance at the cost of increased power consumption - network-latency - Optimize for deterministic performance at the cost of increased power consumption, focused on low latency network performance - network-throughput - Optimize for streaming network throughput, generally only necessary on older CPUs or 40G+ networks - powersave - Optimize for low power consumption - throughput-performance - Broadly applicable tuning that provides excellent performance across a variety of common server workloads - virtual-guest - Optimize for running inside a virtual guest - virtual-host - Optimize for running KVM guests
The default power-saving profile. It has the lowest impact on power saving of the available profiles and only enables CPU and disk plugins of tuned.
A power-saving profile directed at desktop systems. Enables ALPM power saving for SATA host adapters (refer to Section 3.8, “Aggressive Link Power Management”) as well as the CPU, Ethernet, and disk plugins of tuned.
A power-saving profile directed at server systems. Enables ALPM powersaving for SATA host adapters, disables CD-ROM polling through HAL (refer to the hal-disable-polling man page) and activates the CPU and disk plugins of tuned.
A medium-impact power-saving profile directed at laptops running on AC. Enables ALPM powersaving for SATA host adapters, WiFi power saving, as well as the CPU, Ethernet and disk plugins of tuned.
A high-impact power-saving profile directed at laptops running on battery. It activates all power saving mechanisms from the previous profiles plus it enables the multi-core power-savings scheduler for low wakeup systems and makes sure that the ondemand governor is active and that AC97 audio power-saving is enabled. You can use this profile to save the maximum amount of power on any kind of system, not only laptops on battery power. The tradeoff for this profile is a noticeable impact on performance, specifically latency of disk and network I/O.
A strong power-saving profile directed at machines with classic hard disks. It enables aggressive disk spin-down by increasing disk writeback values, lowering disk swappiness, and disabling log syncing. All partitions are remounted with a noatime option. All tuned plugins are disabled.
A server profile for typical throughput performance tuning. It disables tuned and ktune power saving mechanisms, enables sysctl settings that improve the throughput performance of your disk and network I/O, and switches to the deadline scheduler. CPU governor is set to performance.
A server profile for typical latency performance tuning. This profile disables dynamic tuning mechanisms and transparent hugepages. It uses the performance governer for p-states through cpuspeed, and sets the I/O scheduler to deadline. Additionally, in Red Hat Enterprise Linux 6.5 and later, the profile requests a cpu_dma_latency value of 1. In Red Hat Enterprise Linux 6.4 and earlier, cpu_dma_latency requested a value of 0.
A server profile to improve throughput performance for enterprise-sized server configurations. This switches to the deadline scheduler and disables certain I/O barriers, dramatically improving throughput.
This profile is optimized for virtual machines. It is based on the enterprise-storage profile, but also decreases the swappiness of virtual memory. This profile is available in Red Hat Enterprise Linux 6.3 and later.
Based on the enterprise-storage profile, this profile decreases the swappiness of virtual memory and enables more aggressive writeback of dirty pages. Non-root and non-boot file systems are mounted with barrier=0. Additionally, as of Red Hat Enterprise Linux 6.5, the kernel.sched_migration_cost parameter is set to 5 milliseconds. Prior to Red Hat Enterprise Linux 6.5, kernel.sched_migration_cost used the default value of 0.5 milliseconds