Robert Haas <[email protected]> writes:
> Wow, nice results. My intuition on why PGXACT helped in the first place was
> that it minimized the number of cache lines that had to be touched to take a
> snapshot. Padding obviously would somewhat increase that again, so I can't
> quite understand why it seems to be helping... any idea?
That's an interesting point. I wonder whether this whole thing will be
useless or even counterproductive after (if) Heikki's CSN-snapshot patch
gets in. I would certainly not mind reverting the PGXACT/PGPROC
separation if it proves no longer helpful after that.
regards, tom lane
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