On 12/17/21 14:34, Andres Freund wrote: > Hi, > > On 2021-12-17 09:36:05 -0500, Tom Lane wrote: >> Andrew Dunstan <and...@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
