From 689bca3bbccd41be7b256e2227ff2fd0d7aed4ee Mon Sep 17 00:00:00 2001 From: Greg Thelen Date: Wed, 16 Feb 2011 17:51:23 -0800 Subject: memcg: clarify use_hierarchy documentation The memcg code does not allow changing memory.use_hierarchy if the parent cgroup has enabled use_hierarchy. Update documentation to match the code. Signed-off-by: Greg Thelen Acked-by: KAMEZAWA Hiroyuki Signed-off-by: Jiri Kosina --- Documentation/cgroups/memory.txt | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'Documentation/cgroups') diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt index 7781857dc94..b6ed61c9585 100644 --- a/Documentation/cgroups/memory.txt +++ b/Documentation/cgroups/memory.txt @@ -485,8 +485,9 @@ The feature can be disabled by # echo 0 > memory.use_hierarchy -NOTE1: Enabling/disabling will fail if the cgroup already has other - cgroups created below it. +NOTE1: Enabling/disabling will fail if either the cgroup already has other + cgroups created below it, or if the parent cgroup has use_hierarchy + enabled. NOTE2: When panic_on_oom is set to "2", the whole system will panic in case of an OOM event in any cgroup. -- cgit v1.2.3-70-g09d2 From 8671139b1da50fee188646d042c3757bc2945e14 Mon Sep 17 00:00:00 2001 From: GeunSik Lim Date: Thu, 3 Mar 2011 10:16:54 +0900 Subject: Update cpuset info & webiste for cgroups cpuset related websited is changed. and, update list of cpuset using cgroup(controller group). Signed-off-by: Geunsik Lim Acked-by: Paul Menage Signed-off-by: Jiri Kosina --- Documentation/cgroups/cpusets.txt | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) (limited to 'Documentation/cgroups') diff --git a/Documentation/cgroups/cpusets.txt b/Documentation/cgroups/cpusets.txt index 5d0d5692a36..98a30829af7 100644 --- a/Documentation/cgroups/cpusets.txt +++ b/Documentation/cgroups/cpusets.txt @@ -693,7 +693,7 @@ There are ways to query or modify cpusets: - via the C library libcgroup. (http://sourceforge.net/projects/libcg/) - via the python application cset. - (http://developer.novell.com/wiki/index.php/Cpuset) + (http://code.google.com/p/cpuset/) The sched_setaffinity calls can also be done at the shell prompt using SGI's runon or Robert Love's taskset. The mbind and set_mempolicy @@ -725,13 +725,14 @@ Now you want to do something with this cpuset. In this directory you can find several files: # ls -cpuset.cpu_exclusive cpuset.memory_spread_slab -cpuset.cpus cpuset.mems -cpuset.mem_exclusive cpuset.sched_load_balance -cpuset.mem_hardwall cpuset.sched_relax_domain_level -cpuset.memory_migrate notify_on_release -cpuset.memory_pressure tasks -cpuset.memory_spread_page +cgroup.clone_children cpuset.memory_pressure +cgroup.event_control cpuset.memory_spread_page +cgroup.procs cpuset.memory_spread_slab +cpuset.cpu_exclusive cpuset.mems +cpuset.cpus cpuset.sched_load_balance +cpuset.mem_exclusive cpuset.sched_relax_domain_level +cpuset.mem_hardwall notify_on_release +cpuset.memory_migrate tasks Reading them will give you information about the state of this cpuset: the CPUs and Memory Nodes it can use, the processes that are using -- cgit v1.2.3-70-g09d2