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SaveTheRbtz/numa_locality

Created March 15, 2014 09:30
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numa_locality
$ numactl --membind=1 --cpunodebind=1 dd if=/dev/zero of=/dev/null bs=64M count=100
100+0 records in
100+0 records out
6710886400 bytes (6.7 GB) copied, 0.911091 s, 7.4 GB/s
$ numactl --membind=0 --cpunodebind=1 dd if=/dev/zero of=/dev/null bs=64M count=100
100+0 records in
100+0 records out
6710886400 bytes (6.7 GB) copied, 1.28833 s, 5.2 GB/s
$ numactl --interleave=all dd if=/dev/zero of=/dev/null bs=64M count=100
100+0 records in
100+0 records out
6710886400 bytes (6.7 GB) copied, 1.10756 s, 6.1 GB/s
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