Here are some patches to enable ccache in the gitlab-CI. Using the compiler cache can speed up some of the jobs in the CI by avoiding to recompile the same sources again and again. With this patch series, some jobs indeed get quite a bit faster. For example "build-system-fedora" goes down from 29 minutes (https://gitlab.com/thuth/qemu/-/jobs/1168149051) to 12 minutes (https://gitlab.com/thuth/qemu/-/jobs/1175479324) in the best case. However, and that's why I've marked this series still as RFC, there are some jobs which refuse to improve much, for example the *-cfi-* jobs are still running for a long time, see e.g.:
https://gitlab.com/thuth/qemu/-/jobs/1168149079 (50 minutes on master) https://gitlab.com/thuth/qemu/-/jobs/1175479342 (43 minutes with ccache) Thus the overall run time did not improve very much yet. Additionally, the jobs are sometimes running even slower, e.g. if the cache has not been populated yet or if there are a lot of cache misses, and I've seen some jobs hitting the 60 min time limit because of this. And I've even seen two or three jobs failing intermittendly with a crashing test, e.g.: https://gitlab.com/thuth/qemu/-/jobs/1175479336 Not sure whether that's related to some bad caching of ccache, or whether it's something that also occurs on the master branch recently? Has anybody else experienced such a problem? Thus this series is RFC only - in case somebody else wants to play with it and help to improve it, you're very welcome! Thomas Huth (5): tests/docker/dockerfiles: Add ccache to containers where it was missing tests/docker/dockerfiles/ubuntu2004: Add missing symlink for cc gitlab-ci.d/crossbuilds: Limit the amount of targets in the cross-win64 build gitlab-ci.yml: Compile with ccache enabled gitlab-ci.d/crossbuilds.yml: Enable compilation with ccache .gitlab-ci.d/crossbuilds.yml | 34 +++++++++++++++++++ .gitlab-ci.yml | 20 +++++++++++ tests/docker/dockerfiles/alpine.docker | 1 + .../dockerfiles/fedora-i386-cross.docker | 1 + .../dockerfiles/fedora-win32-cross.docker | 1 + .../dockerfiles/fedora-win64-cross.docker | 1 + tests/docker/dockerfiles/opensuse-leap.docker | 1 + tests/docker/dockerfiles/ubuntu2004.docker | 3 ++ 8 files changed, 62 insertions(+) -- 2.27.0
