From adffbb0ca1537277d5344661e05a705af2520c89 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jaroslav=20=C5=A0karvada?= Date: Mon, 28 Apr 2014 14:29:06 +0200 Subject: [PATCH] balanced: used medium_power ALPM policy MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This policy sets the link to the second lowest power state (PARTIAL) when there is no I/O on the disk. This mode is designed to allow transitions in link power states (for example during times of intermittent heavy I/O and idle I/O) with as small impact on performance as possible. This may save significant amount of power in idle periods of the link, especially on laptops. E.g. on x240 the average AC power consumption dropped from approx. 5 W to only 2.5 W. Signed-off-by: Jaroslav Škarvada --- man/tuned-adm.8 | 27 +++++++++++++++------------ profiles/balanced/tuned.conf | 1 + 2 files changed, 16 insertions(+), 12 deletions(-) diff --git a/man/tuned-adm.8 b/man/tuned-adm.8 index 621d8a9..44f7bc5 100644 --- a/man/tuned-adm.8 +++ b/man/tuned-adm.8 @@ -78,23 +78,26 @@ At the moment we're providing the following pre defined profiles: .BI "balanced" It is the default profile. It provides balanced power saving and performance. At the moment it enables CPU and disk plugins of tuned and it makes sure the -ondemand governor is active (if supported by the current cpufreq driver). It -sets the CPU energy performance bias to normal. It also enables AC97 audio -power saving or (it depends on your system) HDA-Intel power savings with 10 -seconds timeout. In case your system contains supported Radeon graphics card -(with enabled KMS) it configures it to automatic power saving. +ondemand governor is active (if supported by the current cpufreq driver). +It enables ALPM power saving for SATA host adapters and sets the link power +management policy to medium_power. It also sets the CPU energy performance +bias to normal. It also enables AC97 audio power saving or (it depends on +your system) HDA-Intel power savings with 10 seconds timeout. In case your +system contains supported Radeon graphics card (with enabled KMS) it +configures it to automatic power saving. .TP .BI "powersave" Maximal power saving, at the moment it enables USB autosuspend (in case environment variable USB_AUTOSUSPEND is set to 1), enables ALPM power saving -for SATA host adapters, enables WiFi power saving, enables multi core power -savings scheduler for low wakeup systems and makes sure the ondemand governor -is active (if supported by the current cpufreq driver). It sets the CPU energy -performance bias to powersave. It also enables AC97 audio power saving or (it -depends on your system) HDA-Intel power savings (with 10 seconds timeout). -In case your system contains supported Radeon graphics card (with enabled KMS) -it configures it to automatic power saving. On Asus Eee PCs dynamic Super +for SATA host adapters and sets the link power manamgent policy to min_power. +It also enables WiFi power saving, enables multi core power savings scheduler +for low wakeup systems and makes sure the ondemand governor is active (if +supported by the current cpufreq driver). It sets the CPU energy performance +bias to powersave. It also enables AC97 audio power saving or (it depends on +your system) HDA-Intel power savings (with 10 seconds timeout). In case your +system contains supported Radeon graphics card (with enabled KMS) it +configures it to automatic power saving. On Asus Eee PCs dynamic Super Hybrid Engine is enabled. .TP diff --git a/profiles/balanced/tuned.conf b/profiles/balanced/tuned.conf index 782a4aa..f3456a4 100644 --- a/profiles/balanced/tuned.conf +++ b/profiles/balanced/tuned.conf @@ -15,3 +15,4 @@ radeon_powersave=auto [disk] # Comma separated list of devices, all devices if commented out. # devices=sda +alpm=medium_power