Messages in this thread | | | From | riel@redhat ... | Subject | [PATCH 0/6] sched,numa: weigh nearby nodes for task placement on complex NUMA topologies (v2) | Date | Fri, 17 Oct 2014 03:29:48 -0400 |
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This patch set integrates two algorithms I have previously tested, one for glueless mesh NUMA topologies, where NUMA nodes communicate with far-away nodes through intermediary nodes, and backplane topologies, where communication with far-away NUMA nodes happens through backplane controllers (which cannot run tasks).
Due to the inavailability of 8 node systems, and the fact that I am flying out to Linuxcon Europe / Plumbers / KVM Forum on Friday, I have not tested these patches yet. However, with a conference (and many familiar faces) coming up, it seemed like a good idea to get the code out there, anyway.
Vinod tested the v1 series + patch 6 on a backplane topology system, and I changed v2 on a glueless mesh topology system. The patches appear to behave.
Placement of tasks on smaller, directly connected, NUMA systems should not be affected at all by this patch serie
v2: remove the hops table, and use numa_distance instead, tested on a system with glueless mesh topology, not yet tested on a backplane style system (but the algorithm should be unchanged)
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