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Merge ea190fa699 into b94a7167a8

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Jiebin Sun 2024-09-18 23:54:30 +03:00 committed by GitHub
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src/Common/getNumberOfPhysicalCPUCores.cpp
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@ -176,7 +176,7 @@ unsigned getNumberOfPhysicalCPUCoresImpl()
/// ///
/// On really big machines, SMT is detrimental to performance (+ ~5% overhead in ClickBench). On such machines, we limit ourself to the physical cores. /// On really big machines, SMT is detrimental to performance (+ ~5% overhead in ClickBench). On such machines, we limit ourself to the physical cores.
/// Few cores indicate it is a small machine, runs in a VM or is a limited cloud instance --> it is reasonable to use all the cores. /// Few cores indicate it is a small machine, runs in a VM or is a limited cloud instance --> it is reasonable to use all the cores.
if (cores >= 32) if (cores >= 64)
cores = physical_concurrency(); cores = physical_concurrency();
#endif #endif