On 12/17/21 14:34, Andres Freund wrote:
> Hi,
>
> On 2021-12-17 09:36:05 -0500, Tom Lane wrote:
>> Andrew Dunstan <andrew@dunslane.net> writes:
>>> Maye I have missed it, but why are we using ccache here? That seems a
>>> bit pointless in an ephemeral instance.
>> I believe Munro's cfbot tooling is able to save and re-use ccache
>> across successive instantiations of a build instance. I've not
>> looked at this code, but if it can do that there'd be point to it.
> Yes, the ccache cache is persisted across runs (see the *_cache and
> upload_cache inststructions). It makes a quite substantial difference. One
> reason the windows runs are a lot slower than the others is just that visual
> studio isn't yet supported by ccache, and that there doesn't seem to be good
> other tools.
>
> The ccache maintainers merged more of the msvc support last weekend! So I have
> quite a bit of hope of being able to use ccache there as well.
>
Ok. I have had to disable ccache for fairywren (msys2) because it caused
serious instability.
cheers
andrew
--
Andrew Dunstan
EDB: https://www.enterprisedb.com