Tru Huynh <t...@pasteur.fr> writes: > afaik, 2.6.32-431 series is from RHEL(and clones) version >=6.5
[Right.] > otoh, it might be related to http://bugs.centos.org/view.php?id=6949 That looks likely. As we bind to cores, we wouldn't see it for MPI processes, at least, and will see higher performance generally. (I read or replied carelessly in thinking this was about binding, rather than a possible scheduling issue.) It really is time to take core binding seriously at least 15 years after NUMA became significant.
