Difference between revisions of "User:Unikum/Ulatencyd"

From ArchWiki
Jump to: navigation, search
Line 25: Line 25:
 
It is provided both in ArchAudio/testing repository and AUR:
 
It is provided both in ArchAudio/testing repository and AUR:
  
yaourt -S ulatencyd
+
{{cli|# yaourt -S ulatencyd}}
  
 
To start ulatencyd:
 
To start ulatencyd:
# /etc/rc.d/ulatencyd start
+
{{cli|# /etc/rc.d/ulatencyd start}}
  
 
If you want ulatencyd start on boot add ulatencyd in DAEMONS section in /etc/rc.conf.
 
If you want ulatencyd start on boot add ulatencyd in DAEMONS section in /etc/rc.conf.
  
 
To verify that it works:
 
To verify that it works:
ulatency tree
+
{{Command| ulatency tree|
 
+
And should get a nice tree like structure like this:
+
 
  /sys/fs/cgroup/cpu
 
  /sys/fs/cgroup/cpu
 
  └─┬»cpu«
 
  └─┬»cpu«
Line 45: Line 43:
 
   ├─┬»sys_idle«
 
   ├─┬»sys_idle«
 
   │ └ 3036 preload
 
   │ └ 3036 preload
 +
  ...}}
  
 
== Configuration ==
 
== Configuration ==

Revision as of 18:21, 9 April 2011

Ulatency is a daemon that controls how the Linux kernel will spend it's resources on the running processes. It uses dynamic cgroups to give the kernel hints and limitations on processes.

It strongly supports the lua scripting language for writing rules and the scheduler code.

Installation

Kernel options requires:

PROC_EVENTS=y
CONFIG_CGROUPS=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_MEM_RES_CTLR=y
CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_BLK_CGROUP=y
CONFIG_CFQ_GROUP_IOSCHED=y

It is provided both in ArchAudio/testing repository and AUR:

Template:Cli

To start ulatencyd: Template:Cli

If you want ulatencyd start on boot add ulatencyd in DAEMONS section in /etc/rc.conf.

To verify that it works: Template:Command

Configuration

Some settings are adjustable in /etc/ulatencyd/ulatencyd.conf and the cgroups that will be used can be changed in /etc/ulatencyd/cgroups.conf

See also