On 4/14/23 10:17, K Prateek Nayak wrote: > + - cluster_id: > + > + A per-CPU variable containing: > + > + - Upper bits extracted from the APIC ID. CPUs which have the same value > + in these bits share an L2 and have the same cluster_id. > + > + CPUs for which cluster information is unavailable will show 65535 > + (BAD_APICID) as the cluster_id. "... return cluster_id of 65535 (BAD_APICID)." > The number of online threads is also printed in /proc/cpuinfo "siblings." > > + - topology_cluster_cpumask(): > + > + The cpumask contains all online threads in the cluster to which a thread > + belongs. > + Looks OK. > The physical package ID to which a thread belongs. > > + - topology_cluster_id(); > + > + The ID of the cluster to which a thread belongs. > + Looks OK. Thanks. -- An old man doll... just what I always wanted! - Clara
