Re: Allow io_combine_limit up to 1MB

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Tomas Vondra <tomas(at)vondra(dot)me>
Subject: Re: Allow io_combine_limit up to 1MB
Date: 2025-04-25 17:43:03
Message-ID: 1985668.1745602983@sss.pgh.pa.us
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Andres Freund <andres(at)anarazel(dot)de> writes:
> It's kinda sad to not have any test that tests a larger
> io_combine_limit/io_max_combine_limit - as evidenced by this bug that'd be
> good. However, not all platforms have PG_IOV_MAX > 16, so it seems like it'd
> be somewhat painful to test?

Maybe just skip the test if the maximum value of the GUC isn't
high enough?

regards, tom lane

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