NUMA and CPU Affinity
NUMA Topology
- numactl —hardware
Local vs Remote NUMA Node Latency
CPU Pinning
- sched_setaffinity
- taskset
numa_alloc_onnode
Hugepages
- madvise(ptr, size, MADV_HUGEPAGE)
- dTLB-load-misses before/after
Hyperthreading
- physical core with sibling idle vs busy
- p99.9 difference