From: Zhang Mingli <zmlpostgres@gmail.com>
To: Nathan Bossart <nathandbossart@gmail.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: John Naylor <jcnaylor@gmail.com>
Cc: pgsql-hackers@postgresql.org
Subject: Re: optimize lookups in snapshot [sub]xip arrays
Date: Tue, 26 Jul 2022 09:50:07 +0800
Message-ID: <CA348268-184A-431D-8F89-53D76B44CE91@gmail.com> (raw)
In-Reply-To: <20220725190419.GA4095199@nathanxps13>
References: <20220713170950.GA3116318@nathanxps13>
<20220715200857.nm2gc4weixwlwbnx@awork3.anarazel.de>
<20220717035957.GA3631071@nathanxps13>
<20220725190419.GA4095199@nathanxps13>
> On Jul 26, 2022, at 03:04, Nathan Bossart <nathandbossart@gmail.com> wrote:
>>
> From the discussion thus far, it seems there is interest in optimizing
> [sub]xip lookups, so I'd like to spend some time moving it forward. I
> think the biggest open question is which approach to take. Both the SIMD
> and hash table approaches seem viable, but I think I prefer the SIMD
> approach at the moment (see the last paragraph of quoted text for the
> reasons). What do folks think?
>
> --
> Nathan Bossart
> Amazon Web Services: https://aws.amazon.com
>
>
+1, I’m not familiar with SIMD, will try to review this patch.
Regards,
Zhang Mingli
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To: pgsql-hackers@postgresql.org
Cc: zmlpostgres@gmail.com, nathandbossart@gmail.com, andres@anarazel.de, jcnaylor@gmail.com
Subject: Re: optimize lookups in snapshot [sub]xip arrays
In-Reply-To: <CA348268-184A-431D-8F89-53D76B44CE91@gmail.com>
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