nautilus: osd: set affinity for *all* threads #31359
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It turns out schedule_setaffinity(2) only sets the current *thread*'s affinity, not the entire process. Look in /proc to identify all of our children and map those, too. Note that this doesn't seem to affect the numa_preferred_nid value in /proc/$pid/[task/$tid/]sched... at least not immediately. That value does seem to change for some threads after some load is applied. Fixes: https://tracker.ceph.com/issues/42054 Signed-off-by: Sage Weil <sage@redhat.com> (cherry picked from commit abaed06)
neha-ojha
approved these changes
Dec 18, 2019
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backport tracker: https://tracker.ceph.com/issues/42203
backport of #30712
parent tracker: https://tracker.ceph.com/issues/42054
updated using ceph-backport.sh version 15.0.0.6612