On Tue, Jan 15, 2019 at 07:40:12PM +0300, Maksim Milyutin wrote: > Could you specify all cases when buffers will not be aligned with BLCKSZ? > > AFAIC shared and temp buffers are aligned. And what ones are not?
SLRU buffers are not aligned with the OS pages (aka alignment with 4096 at least). There are also a bunch of code paths where the callers of mdread() or mdwrite() don't do that, which makes a correct patch more invasive. -- Michael
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