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Re: [PoC] Improve dead tuple storage for lazy vacuum - Mailing list pgsql-hackers

From John Naylor
Subject Re: [PoC] Improve dead tuple storage for lazy vacuum
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Msg-id CAFBsxsFXCdLa9ubttm7=UXPVECZq9=JbD+cgq4Qn39NYfvbGpA@mail.gmail.com
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In response to Re: [PoC] Improve dead tuple storage for lazy vacuum  (John Naylor <john.naylor@enterprisedb.com>)
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On Wed, Sep 28, 2022 at 1:18 PM John Naylor <john.naylor@enterprisedb.com> wrote:
> [stuff about size classes]

I kind of buried the lede here on one thing: If we only have 4 kinds regardless of the number of size classes, we can use 2 bits of the pointer for dispatch, which would only require 4-byte alignment. That should make that technique more portable.

--
John Naylor
EDB: http://www.enterprisedb.com

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