Re: [PATCH v2 1/1] mm: only dispaly online cpus of the numa node
From: Michael Ellerman <hidden>
Date: 2017-10-03 01:22:48
Also in:
linux-mm, lkml
Zhen Lei [off-list ref] writes:
When I executed numactl -H(which read /sys/devices/system/node/nodeX/cpumap and display cpumask_of_node for each node), but I got different result on X86 and arm64. For each numa node, the former only displayed online CPUs, and the latter displayed all possible CPUs. Unfortunately, both Linux documentation and numactl manual have not described it clear.
FWIW powerpc happens to implement the x86 behaviour, online CPUs only. cheers