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use MADV_WILLNEED for scalar column data (#27170)

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Signed-off-by: yah01 <yah2er0ne@outlook.com>
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yah01 2023-09-18 18:05:22 +08:00 committed by GitHub
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commit 0459a662e4
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internal/core/src/mmap/Column.h
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@ -82,6 +82,7 @@ class ColumnBase {
AssertInfo(data_ != MAP_FAILED,
fmt::format("failed to create file-backed map, err: {}",
strerror(errno)));
madvise(data_, cap_size_ + padding_, MADV_WILLNEED);
}
// mmap mode ctor