Difference between revisions of "Numa Control: numactl"
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(Created page with "numactl runs processes with a specific NUMA scheduling or memory placement policy. The policy is set for command and inherited by all of its children. == Show the avail...") |
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time numactl --cpubind=0 --membind=0 rpmbuild -ba kernel.spec | time numactl --cpubind=0 --membind=0 rpmbuild -ba kernel.spec | ||
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| + | == Bind to a CPU core == | ||
| + | <syntaxhighlight> | ||
| + | time numactl --physcpubind=0 --membind=0 rpmbuild -ba kernel.spec | ||
</syntaxhighlight> | </syntaxhighlight> | ||
Latest revision as of 22:14, 9 June 2014
numactl runs processes with a specific NUMA scheduling or memory placement policy. The policy is set for command and inherited by all of its children.
Show the available numa nodes
[root@mcs ~]# numactl --hardware
available: 2 nodes (0-1)
node 0 cpus: 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23
node 0 size: 65500 MB
node 0 free: 57709 MB
node 1 cpus: 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31
node 1 size: 65536 MB
node 1 free: 59780 MB
node distances:
node 0 1
0: 10 21
1: 21 10Show the numa policies
[root@mcs ~]# numactl --show
policy: default
preferred node: current
physcpubind: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
cpubind: 0 1
nodebind: 0 1
membind: 0 1Bind to a CPU socket
time numactl --cpubind=0 --membind=0 rpmbuild -ba kernel.specBind to a CPU core
time numactl --physcpubind=0 --membind=0 rpmbuild -ba kernel.spec