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From: Tom Lane <[email protected]>
To: Thomas Munro <[email protected]>
Cc: pgsql-hackers <[email protected]>
Subject: Re: CI warnings test for 32 bit, and faster headerscheck
Date: Thu, 03 Oct 2024 10:16:00 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <CA+hUKGJjQyZUvcu6udk5OKz5rnaF4a_hm5nb_VtZHYMH+vsN0g@mail.gmail.com>
References: <CA+hUKGJjQyZUvcu6udk5OKz5rnaF4a_hm5nb_VtZHYMH+vsN0g@mail.gmail.com>

Thomas Munro <[email protected]> writes:
> Hmm, given that configure uses more time than compiling (assuming 100%
> ccache hits) and is woefully serial, I wonder what ingredients you'd
> need to hash to have bulletproof cache invalidation for a persistent
> configure cache, ie that survives between runs.

The buildfarm uses a simple trick that seems to work remarkably well:
if the animal's previous run failed (for any reason) then blow away
the configure cache.  Maybe that could be adapted here.

			regards, tom lane






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