diff options
| author | Zhang Rui <rui.zhang@intel.com> | 2026-03-10 14:02:01 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2026-03-17 23:13:09 -0400 |
| commit | 99b38fa34342b227a863948460b7937a97dbce28 (patch) | |
| tree | 9071c637ca7c91b5042158ade66c0e9e334f6bf2 | |
| parent | b8ead30e2b2c7f32c8d2782e805160b110766592 (diff) | |
tools/power turbostat: Eliminate unnecessary data structure allocation
Linux core_id's are a per-package namespace, not a per-node namespace.
Rename topo.cores_per_node to topo.cores_per_pkg to reflect this.
Eliminate topo.nodes_per_pkg from the sizing for core data structures,
since it has no role except to unnecessarily bloat the allocation.
Validated on multiple Intel platforms (ICX/SPR/SRF/EMR/GNR/CWF) with
various CPU online/offline configurations and SMT enabled/disabled
scenarios.
No functional changes.
[lenb: commit message]
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | tools/power/x86/turbostat/turbostat.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 791b9154f662..14021a6ed717 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -2409,7 +2409,7 @@ struct topo_params { int max_l3_id; int max_node_num; int nodes_per_pkg; - int cores_per_node; + int cores_per_pkg; int threads_per_core; } topo; @@ -9633,9 +9633,9 @@ void topology_probe(bool startup) topo.max_core_id = max_core_id; /* within a package */ topo.max_package_id = max_package_id; - topo.cores_per_node = max_core_id + 1; + topo.cores_per_pkg = max_core_id + 1; if (debug > 1) - fprintf(outf, "max_core_id %d, sizing for %d cores per package\n", max_core_id, topo.cores_per_node); + fprintf(outf, "max_core_id %d, sizing for %d cores per package\n", max_core_id, topo.cores_per_pkg); if (!summary_only) BIC_PRESENT(BIC_Core); @@ -9700,7 +9700,7 @@ error: void allocate_counters(struct counters *counters) { int i; - int num_cores = topo.cores_per_node * topo.nodes_per_pkg * topo.num_packages; + int num_cores = topo.cores_per_pkg * topo.num_packages; counters->threads = calloc(topo.max_cpu_num + 1, sizeof(struct thread_data)); if (counters->threads == NULL) |