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MINOR: cpu-topo: also store the sibling ID with SMT

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The sibling ID was not reported because it's not directly accessible
but we don't care, what matters is that we assign numbers to all the
threads we find using the same CPU so that some strategies permit to
allocate one thread at a time if we want to use few threads with max
performance.
This commit is contained in:
Willy Tarreau 2025-01-08 17:55:10 +01:00
parent 7cb274439b
commit 65612369e7
1 changed files with 3 additions and 0 deletions
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3
src/cpu_topo.c
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@ -298,11 +298,14 @@ int cpu_detect_topology(void)
parse_cpu_set_args[0] = trash.area;
parse_cpu_set_args[1] = "\0";
if (parse_cpu_set(parse_cpu_set_args, &cpus_list, NULL) == 0) {
int sib_id = 0;
cpu_id.th_cnt = ha_cpuset_count(&cpus_list);
for (cpu2 = 0; cpu2 <= cpu_topo_lastcpu; cpu2++) {
if (ha_cpuset_isset(&cpus_list, cpu2)) {
ha_cpu_topo[cpu2].ts_id = cpu_id.ts_id;
ha_cpu_topo[cpu2].th_cnt = cpu_id.th_cnt;
ha_cpu_topo[cpu2].th_id = sib_id++;
}
}
cpu_id.ts_id++;