GnuTests: Caches for faster configure and skipping make

[oech3]

1. Save config.cache for faster ./configure. Closes GnuTests: Host cache for configure-ing GNU coreutils #9446 .
2. Save getlimits to skip make. Closes GnuTests: Do not build GNU coreutils for faster CI #9331

[codspeed-hq]

CodSpeed Performance Report

Merging #9627 will improve performance by 3.18%

_{Comparing oech3:gnu-cache (add5e8c) with main (645b105)¹}

Summary

⚡ 2 improvements
✅ 125 untouched
⏩ 6 skipped²

Benchmarks breakdown

	Benchmark	BASE	HEAD	Efficiency
⚡	b64_decode_ignore_garbage_synthetic	169.7 µs	164.5 µs	+3.18%
⚡	b64_decode_synthetic	169.8 µs	164.5 µs	+3.18%

Footnotes

1. No successful run was found on main (3de9411) during the generation of this report, so 645b105 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

2. 6 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/tail/overlay-headers (passes in this run but fails in the 'main' branch)

[oech3]

At fork: 1st run: 7m 25s -> 2nd run: 6m 3s

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/tail/overlay-headers (passes in this run but fails in the 'main' branch)

[oech3]

https://github.com/oech3/coreutils/actions/runs/20128768132/job/57764715435#step:11:1

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/tail/overlay-headers (passes in this run but fails in the 'main' branch)

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/tail/overlay-headers (passes in this run but fails in the 'main' branch)

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/tail/overlay-headers (passes in this run but fails in the 'main' branch)

[github-actions]

GNU testsuite comparison:

Skip an intermittent issue tests/tail/overlay-headers (fails in this run but passes in the 'main' branch)

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/tail/overlay-headers (passes in this run but fails in the 'main' branch)

[github-actions]

GNU testsuite comparison:

Skip an intermittent issue tests/tail/overlay-headers (fails in this run but passes in the 'main' branch)

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/tail/overlay-headers (passes in this run but fails in the 'main' branch)

[github-actions]

GNU testsuite comparison:

Skip an intermittent issue tests/tail/inotify-dir-recreate (was skipped on 'main', now failing)

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/tail/overlay-headers (passes in this run but fails in the 'main' branch)

[sylvestre]

@oech3 could you please stop rebasing the patch a few time per day in your prs?
this isn't helping :(

[oech3]

Sorry. I just wanted to remove a failing mark.

[oech3]

Is there any way to retrigger 1 test only by author?

[ChrisDryden]

Whats the best way to help work towards fixing the flakiness? Afaik its three tail tests, one more test and rarely some timeout issues in some of the steps. I believe there are some proposed fixes for those by @naoNao89 in PR's, but was wondering if you'd be open to disabling them until a confirmed fix is made?

[oech3]

I prefer detecting required few CI files required to run instead of disabling (if supported by GutHub).

[oech3]

@ChrisDryden Would you list unstable tests as a new issue?

[naoNao89]

I have already proposed targeted fixes for the flaky test issues: #9649, #9636, #9630

[oech3]

Conflicts

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/tail/overlay-headers (passes in this run but fails in the 'main' branch)
Congrats! The gnu test tests/tail/inotify-dir-recreate is now passing!

[oech3]

Am I missing something?
https://github.com/uutils/coreutils/actions/runs/20390317435/job/58598561408#step:6:26