gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

NUMA: expose correct NUMA distances in sysfs

Browse Source
This commit is contained in:
Balazs Gerofi
2016-10-27 14:29:15 +09:00
parent 059fab2cc0
commit f1af1ffb8f
3 changed files with 26 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
executer/kernel/mcctrl/mcctrl.h
View File

@ -243,9 +243,12 @@ struct cpu_topology {
struct list_head cache_list;
};
#define NODE_DISTANCE_S_SIZE 1024
struct node_topology {
struct ihk_node_topology *saved;
int mckernel_numa_id;
char mckernel_numa_distance_s[NODE_DISTANCE_S_SIZE];
cpumask_t cpumap;
struct list_head chain;

22
executer/kernel/mcctrl/sysfs_files.c
View File

@ -680,9 +680,31 @@ static int setup_node_files(struct mcctrl_usrdata *udp)
list_for_each_entry(p, &udp->node_topology_list, chain) {
struct sysfs_handle handle;
int cpu;
int node;
size_t offset = 0;
param.nbits = nr_cpumask_bits;
param.ptr = &p->cpumap;
for (node = 0; node < udp->mem_info->n_numa_nodes; ++node) {
if (node > 0) {
offset += snprintf(&p->mckernel_numa_distance_s[offset],
NODE_DISTANCE_S_SIZE - offset, "%s", " ");
}
offset += snprintf(&p->mckernel_numa_distance_s[offset],
NODE_DISTANCE_S_SIZE - offset, "%d",
node_distance(
mckernel_numa_2_linux_numa(udp, p->mckernel_numa_id),
mckernel_numa_2_linux_numa(udp, node)
));
}
offset += snprintf(&p->mckernel_numa_distance_s[offset],
NODE_DISTANCE_S_SIZE - offset, "%s", "\n");
sysfsm_createf(udp->os, SYSFS_SNOOPING_OPS_s,
p->mckernel_numa_distance_s, 0444,
"/sys/devices/system/node/node%d/distance",
p->mckernel_numa_id);
sysfsm_createf(udp->os, SYSFS_SNOOPING_OPS_pb, &param, 0444,
"/sys/devices/system/node/node%d/cpumap",
p->mckernel_numa_id);

1
lib/include/ihk/mm.h
View File

@ -171,6 +171,7 @@ uint64_t ihk_mc_pt_virt_to_pagemap(struct page_table *pt, unsigned long virt);
int ihk_mc_get_nr_numa_nodes(void);
struct smp_coreset;
int ihk_mc_get_numa_node(int id, int *linux_numa_id, int *type);
int ihk_mc_get_numa_distance(int i, int j);
int ihk_mc_get_nr_memory_chunks(void);
int ihk_mc_get_memory_chunk(int id,
unsigned long *start,