ext/pdo: Rearrange struct to pack and group related fields together #17651
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All bound related fields are now part of the same cache line
Girgias
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nielsdos
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Jan 31, 2025
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This shrinks the struct to 224 bytes on x64 Linux indeed.
I think it's better to swap database_object_handle and dbh as dbh is accessed more frequently together with the rest. Although of course the allocation is likely not aligned to a cache line boundary so it will not make much difference anyway
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All bound related fields are now part of the same cache line