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CI / Shell-Lint (bash -n, source-check, Validierungs-Tests) (pull_request) Successful in 2s
actions/cache -- and actions/setup-go, which builds on it -- packs its archive with zstdmt when zstd is present and falls back to single-threaded gzip when it is not. The archive name says which happened: cache.tzst against cache.tgz. Measured in l.kirchner/patchmgr, CI run 1957. The cache is GOMODCACHE plus GOCACHE and runs to 2-5 GB. runner-gpu has zstd and writes cache.tzst; runner-01, -02 and -03 write cache.tgz, and go test -race (stable) spent 605 seconds packing it for a job with 41 seconds of work. Across all eight jobs of that run, 2312 of 3146 seconds went into this step. This does not settle whether the cache is wanted at all -- in host mode with a persistent home both directories survive between jobs anyway, and patchmgr is switching it off for that reason. But as long as any repository on the instance uses it, it should not be compressed on one core. zstd is a package for the post step, not for jobs, so it sits with the others rather than in a workflow: this runner installs nothing at job time, by design.