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From: Melanie Plageman <[email protected]>
To: Peter Geoghegan <[email protected]>
Cc: Thomas Munro <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: [email protected]
Cc: Tomas Vondra <[email protected]>
Subject: Re: Don't synchronously wait for already-in-progress IO in read stream
Date: Tue, 3 Mar 2026 14:48:07 -0500
Message-ID: <CAAKRu_aMKKfgEW3Qvt9gxf+pT7+r-xWCKpJmtzDwdY8MAAQTdQ@mail.gmail.com> (raw)
In-Reply-To: <CAH2-Wzk02vPjsJPx7EGNmgvsKKgyHn=XtGjJcPE+eQTP3xQt7w@mail.gmail.com>
References: <zljergweqti7x67lg5ije2rzjusie37nslsnkjkkby4laqqbfw@3p3zu522yykv>
	<CA+hUKGKwzPJNcxCFUswe0K=0e7rG79dvqt9o17-E3soxLPxF+Q@mail.gmail.com>
	<CAAKRu_atdnPCCy=kfxqWT62Ckaiz3G5t=S97tW24CuL3i3fFfQ@mail.gmail.com>
	<CAH2-Wzk02vPjsJPx7EGNmgvsKKgyHn=XtGjJcPE+eQTP3xQt7w@mail.gmail.com>

On Mon, Feb 23, 2026 at 2:27 PM Peter Geoghegan <[email protected]> wrote:
>
> Have you considered making ProcessBufferHit into an inline function? I
> find that doing so meaningfully improves performance with the index
> prefetching patch set. This is particularly true for cached index-only
> scans with many VM buffer hits. And it seems to have no downside.

Done in recently posted v4. Thanks for the report!

- Melanie





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