> 12 янв. 2019 г., в 9:46, Michael Paquier <mich...@paquier.xyz> написал(а): > > Note that pg_attribute_aligned() cannot be used as that's not an > option with clang and a couple of other comilers as far as I know, so > the patch uses a simple set of placeholder buffers large enough to be > aligned with the OS pages, which should be 4k for Linux by the way, > and not set to BLCKSZ, but for WAL's O_DIRECT we don't really care > much with such details.
Is it possible to avoid those memcopy's by aligning available buffers instead? I couldn't understand this from the patch and this thread. Best regards, Andrey Borodin.
