On Sat, 01 Aug 2026 at 00:50, Christoph Berg <myon@debian.org> wrote:
> Re: Tomas Vondra
>> Thanks. FWIW I've brought this up with the RMT, and there seem to be no
>> objections to getting this done for PG19. Unless someone objects in the
>> next couple days, I'll get it committed.
>
> Thanks!
>
>> AFAIK the algorithms make different trade offs - zstd tends to compress
>> better, but uses (substantially) more CPU. I think it makes sense to
>> default to lz4, it's clearly better than pglz, with low CPU usage.
>
> Yes, lz4 makes sense to me now. zstd is the "can I tune it harder" pick.
>
How about adding a comment or documentation to clarify the rationale for
choosing lz4 over zstd?
> Christoph
--
Regards,
Japin Li
ChengDu WenWu Information Technology Co., Ltd.
