questions about head.hackage

[jappie klooster]

Thanks Teo, that's exactly what I was looking for
I'll keep in mind this number changes over time.

@Andrea I think the intention is that the patches eventually get 
upstreamed to the libraries
It's just a good measure point for me to do quantitative breakage 
analysis upon.

On 23-07-2024 03:06, Teofil Camarasu wrote:
> Hi Jappie,
>
> There is a GHC grafana with some statistics. Unfortunately the 
> relevant dashboards seem to be broken at present. Hopefully someone on 
> this list could fix it.
> See: 
> https://grafana.gitlab.haskell.org/d/7T7oEMlMz/head-hackage-performance?orgId=2&viewPanel=3 
> <https://grafana.gitlab.haskell.org/d/7T7oEMlMz/head-hackage-performance?orgId=2&viewPanel=3>
>
> There's also 
> https://grafana.gitlab.haskell.org/d/RHebDhq7z/head-hackage-residency-profiling?orgId=2&refresh=30m 
> <https://grafana.gitlab.haskell.org/d/RHebDhq7z/head-hackage-residency-profiling?orgId=2&refresh=30m>, 
> which is for residency information, but looking at the filters 
> suggests that the peak amount of packages is around 900.
>
> Cheers,
> Teo
>
> On Tue, Jul 23, 2024 at 4:29 AM Andrea Bedini 
> <andrea at andreabedini.com> wrote:
>
>     On Tue, 23 Jul 2024, at 7:38 AM, jappie klooster wrote:
>     > For the stability working group I'm trying to understand how many
>     > packages head.hackage allows you to build.
>     > Does anyone know the answer to this or have an idea how I can
>     find out?
>
>     I don't have the numbers you are looking for but one data-point is
>     that cabal-install itself (which has a reasonable number of
>     dependencies) typically does not compile with a freshly released
>     GHC. This forces to temporarily add head.hackage in CI when a new
>     GHC releases.
>
>     IMHO, using head.hackage to test a source-distribution defeats the
>     purposes of testing. We cannot (and should not) assume those
>     building cabal's source distribution(s) are using it, and
>     therefore `cabal install cabal-install` will end up succeeding in
>     our CI and failing for everybody else.
>
>     My 2c,
>     Andrea
>
>     -- 
>     Andrea Bedini
>     https://www.andreabedini.com
>     _______________________________________________
>     ghc-devs mailing list
>     ghc-devs at haskell.org
>     http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
>
-- 
With regards,

Jappie Klooster

e:hi at jappie.me
w:https://jappie.me
m: +31644237437
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.haskell.org/pipermail/ghc-devs/attachments/20240723/6299fcb3/attachment.html>