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| author | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:15:58 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:15:58 +0200 |
| commit | e765ee90da62535ac7d7a97f2464f9646539d683 (patch) | |
| tree | 7a9cecce5aab958938e9a3bf46c2302d6af1958c /Documentation/cpusets.txt | |
| parent | a4500b84c51645bbc86be3ca84f2252b7ada060f (diff) | |
| parent | 066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff) | |
Merge branch 'linus' into tracing/ftracetip-tracing-ftrace-2008-06-16_09.26_Montip-tracing-ftrace-2008-06-16_09.16_Mon
Diffstat (limited to 'Documentation/cpusets.txt')
| -rw-r--r-- | Documentation/cpusets.txt | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Documentation/cpusets.txt b/Documentation/cpusets.txt index fb7b361e6eea..d803c5c68ab5 100644 --- a/Documentation/cpusets.txt +++ b/Documentation/cpusets.txt @@ -199,7 +199,7 @@ using the sched_setaffinity, mbind and set_mempolicy system calls. The following rules apply to each cpuset: - Its CPUs and Memory Nodes must be a subset of its parents. - - It can only be marked exclusive if its parent is. + - It can't be marked exclusive unless its parent is. - If its cpu or memory is exclusive, they may not overlap any sibling. These rules, and the natural hierarchy of cpusets, enable efficient @@ -345,7 +345,7 @@ is modified to perform an inline check for this PF_SPREAD_PAGE task flag, and if set, a call to a new routine cpuset_mem_spread_node() returns the node to prefer for the allocation. -Similarly, setting 'memory_spread_cache' turns on the flag +Similarly, setting 'memory_spread_slab' turns on the flag PF_SPREAD_SLAB, and appropriately marked slab caches will allocate pages from the node returned by cpuset_mem_spread_node(). @@ -709,7 +709,10 @@ Now you want to do something with this cpuset. In this directory you can find several files: # ls -cpus cpu_exclusive mems mem_exclusive mem_hardwall tasks +cpu_exclusive memory_migrate mems tasks +cpus memory_pressure notify_on_release +mem_exclusive memory_spread_page sched_load_balance +mem_hardwall memory_spread_slab sched_relax_domain_level 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 |