Hi,
at work we use cmake unity build to save time & costs. Would that be some idea here, too? Naturally as side effect that can hide compile issues or introduce ones. Greetings Christoph On Friday, April 18th, 2025 at 21:25, Ben Cooksley <bcooks...@kde.org> wrote: > Hi all, > Over the past week or two there have been a number of complaints regarding CI > builder availability which i've done some investigating into this morning. > > Part of this is related to the Windows CI builders falling offline due to OOM > events, however the rest is simply due to a lack of builder time availability > (which is what this email is focused on). > > Given we have 6 Hetzner AX51 servers connected to Gitlab (each equipped with > a Ryzen 7 7700 CPU, 64GB RAM and NVMe storage) the issue is not available > build power - it is the number of builds and the length of those builds that > is at issue. > > This morning I ran a basic query to ascertain the top 20 projects for CI time > utilisation on invent.kde.org which revealed the following: > > full_path | time_used | job_count > ------------------------------+------------------+----------- > plasma/kwin | 320:47:04.966412 | 2387 > graphics/krita | 178:03:19.080763 | 423 > multimedia/kdenlive | 174:08:09.876842 | 697 > network/ruqola | 173:17:47.311305 | 555 > plasma/plasma-workspace | 155:10:03.618929 | 660 > network/neochat | 138:03:23.926652 | 1546 > education/kstars | 129:49:17.74229 | 329 > sysadmin/ci-management | 111:21:09.739792 | 154 > plasma/plasma-desktop | 108:56:52.849433 | 776 > kde-linux/kde-linux-packages | 81:00:10.001937 | 33 > kdevelop/kdevelop | 59:40:51.54474 | 217 > office/kmymoney | 54:32:00.24623 | 271 > frameworks/kio | 53:54:19.046685 | 690 > education/labplot | 52:36:30.343671 | 245 > murveit/kstars | 52:32:56.882728 | 128 > frameworks/kirigami | 47:07:19.172935 | 1627 > system/dolphin | 46:09:58.02836 | 705 > kde-linux/kde-linux | 39:25:54.052469 | 46 > utilities/kate | 36:09:22.18958 | 356 > wreissenberger/kstars | 35:58:14.120515 | 105 > > > If we look closely, KStars has three spots on this list (totalling 216 hours > of time used, making it the biggest app user of CI time). > > Projects on the above list are asked to please review their jobs and how they > are conducting development to ensure CI time is used efficiently and > appropriately. > > Other projects should also please review their usage and optimise accordingly > even if they're not on this list as there is efficiencies to be found in all > projects. > > When reviewing the list of CI builds projects have enabled, it is important > to consider to what degree your project benefits from having various builds > enabled. One common pattern i've seen is having Alpine, SUSE Qt 6.9 and SUSE > Qt 6.10 all enabled. > > If you need to verify building on Alpine / MUSL type systems and wish to > monitor for Qt Next regressions then you probably shouldn't have a > conventional Linux Qt stable build as those two jobs between them already > cover that list of permutations. > > I've taken a quick look at some of these and can suggest the following: > > KWin: it has two conventional Linux jobs (suse_qt69 and suse_qt610) plus a > custom reduced feature set job. It seems like one of these conventional Linux > jobs should be dropped. > > KStars: Appears to have a custom Linux job in addition to a conventional > Linux job. Choose one please. > > Ruqola: Appears to be conducting a development process whereby changes are > made in stable then immediately merged to master in a ever continuing loop. > Please discontinue this behaviour and only periodically merge stable to > master. > > Also needs to drop one of it's Linux jobs as they're duplicating > functionality as noted above. > > Plasma Workspace/Desktop: At least in part this seems to be driven by Appium > tests. Please reduce the number of these and/or streamline the process for > running an Appium test. Consideration should be given to enabling the CI > option use-ccache as well. > > KDevelop: Please enable the CI option use-ccache. > > Labplot: Appears to have a strange customisation in place to the standard > jobs which shouldn't be necessary as flags in .kde-ci.yml should permit that > to be done. > > Thanks, > Ben
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