Redhat...What is migration/0 etc when I run top

[Travis Zadikem]

Can someone please explain to me what these are and what they do?   I am
trying
to turn off as many services as possible to get the best speed on my Red Hat
ES server.
 2 root      RT   0     0    0     0 SW    0.0  0.0   0:00   0 migration/0
    3 root      RT   0     0    0     0 SW    0.0  0.0   0:00   1
migration/1
    4 root      RT   0     0    0     0 SW    0.0  0.0   0:00   2
migration/2
    5 root      RT   0     0    0     0 SW    0.0  0.0   0:00   3
migration/3


Thanks,
Travis