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fine-tuned element prefetching in unprotected_bulk_visit

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joaquintides 2023-10-18 09:23:24 +02:00
parent 0e19223e5b
commit d67d58cb4b
1 changed files with 2 additions and 1 deletions
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3
include/boost/unordered/detail/foa/concurrent_table.hpp
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@ -1216,7 +1216,8 @@ private:
auto mask=masks[i]=(this->arrays.groups()+pos)->match(hash);
if(mask){
BOOST_UNORDERED_PREFETCH(this->arrays.group_accesses()+pos);
BOOST_UNORDERED_PREFETCH_ELEMENTS(this->arrays.elements()+pos*N,N);
//BOOST_UNORDERED_PREFETCH_ELEMENTS(this->arrays.elements()+pos*N,N);
BOOST_UNORDERED_PREFETCH(this->arrays.elements()+pos*N+unchecked_countr_zero(mask));
}
}