GHC CI

[Bryan Richter]

I have been told by Equinix representatives that if we built something that
dynamically scales up and down the number of machines we use, not only
would it *not* impact their bottom line very much, but it would actually be
*valuable* to Equinix. Their sponsorship of us comes out of their
sales/marketing budget. If we can create cool things they can show off
("look at the cool things you can do on our platform"), they would
appreciate it.

If I had more time to spend on DevOps, this is something I'd be interested
in building.

On Wed, 6 Nov 2024, 14.44 Oleg Grenrus, <oleg.grenrus at iki.fi> wrote:

> OTOH, if nightly pipeline is cancelled for a week in succession, and
> *then* it fails, we are screwed.
>
> In my experience failing marge jobs is what consumes a lot of CI time.
>
> In summary, until there is are analytics where the CI time is actually
> spent, it's at best guesses, at worst wrong guesses.
>
> - Oleg
> On 6.11.2024 13.55, Cheng Shao wrote:
>
> When we have a large queue of blocked pipelines, we should cancel the
> validation/nightly pipeline on master since they'll consume the runner
> resource for too long, and runners should be prioritized for marge batches
> and regular MRs.
>
> Cheers,
> Cheng
>
> On Wed, Nov 6, 2024 at 11:34 AM Andreas Klebinger via ghc-devs <
> ghc-devs at haskell.org> wrote:
>
>> Hi Simon,
>>
>> I took a brief look and it might just be CI being strained from
>> ghc-9.12.1-alpha2
>> and related CI jobs.
>>
>> It seems the number of pending jobs already went down slightly
>> between when I first looked at it and just now.
>> I would expect to resolve itself in the next few hours.
>> But I will take a closer look in a few hours if the issue persists.
>>
>> Cheers
>> Andreas
>>
>>
>> Am 06/11/2024 um 09:37 schrieb Simon Peyton Jones:
>>
>> Dear GHC devs
>>
>> Is something stuck in CI?
>>
>> https://gitlab.haskell.org/ghc/ghc/-/merge_requests/13553 has been
>> stalled for 9 hrs.   I have not seen that before.
>>
>> Thanks
>>
>> Simon
>>
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