MuteBardTison commented on code in PR #46034:
URL: https://github.com/apache/arrow/pull/46034#discussion_r2030975669
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cpp/src/arrow/util/cpu_info.cc:
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@@ -513,7 +514,7 @@ struct CpuInfo::Impl {
OsRetrieveCacheSize(&cache_sizes);
OsRetrieveCpuInfo(&hardware_flags, &vendor, &model_name);
original_hardware_flags = hardware_flags;
- num_cores =
std::max(static_cast<int>(std::thread::hardware_concurrency()), 1);
+ num_cores = std::max(GetAffinityCpuCount(), 1);
Review Comment:
Got it. Just to double-ceck: do we want `ThreadPool::DefaultCapacity()` to
continue using `hardware_concurrency()` even on Linux, or would it make sense
to prefer `num_affinity_cores()` there
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