cpusets: fix and update Documentation
PATCH 1/1 cpusets: fix and update Documentation
Make the doc consistent with current cpusets implementation.
Signed-off-by Miao Xie <[email protected]>
--- Documentation/cpusets.txt | 9 ++++++--- 1 files changed, 6 insertions(+), 3 deletions(-)
Documentation/cpusets.txt +6 -3
@@ -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
Signature · 1 line
1.5.4.rc3
Quoted 1 line · Miao
Make the doc consistent with current cpusets implementation.
Good fixes - thanks.
Acked-by Paul Jackson <[email protected]>
Quoted 2 lines
- - It can only be marked exclusive if its parent is.
+ - It can't be marked exclusive unless its parent is.
I read both versions of this sentence as meaning the same thing, though I think your new version is easier to read - good.
Signature · 3 lines
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <[email protected]> 1.940.382.4214