uucore: use mimalloc

[oech3]

No description provided.

[github-actions]

GNU testsuite comparison:

Congrats! The gnu test tests/pr/bounded-memory is no longer failing!

[github-actions]

GNU testsuite comparison:

GNU test failed: tests/pr/bounded-memory. tests/pr/bounded-memory is passing on 'main'. Maybe you have to rebase?
Note: The gnu test tests/rm/rm-readdir-fail was skipped on 'main' but is now failing.

[codspeed-hq]

Merging this PR will degrade performance by 91.46%

⚡ 63 improved benchmarks
❌ 20 regressed benchmarks
✅ 69 untouched benchmarks
⏩ 194 skipped benchmarks¹

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
⚡	Simulation	wc_bytes_synthetic[500]	87.6 µs	78.3 µs	+11.86%
⚡	Simulation	b64_decode_ignore_garbage_synthetic	63.1 µs	57 µs	+10.72%
⚡	Simulation	b64_encode_synthetic	58.5 µs	54.8 µs	+6.78%
⚡	Simulation	b64_decode_synthetic	63.2 µs	56.1 µs	+12.71%
⚡	Simulation	cksum_blake3	115.9 µs	112.4 µs	+3.09%
❌	Simulation	sort_mixed_utf8_locale	35.6 ms	37.1 ms	-3.96%
❌	Simulation	sort_ascii_utf8_locale	15.3 ms	16.7 ms	-7.93%
❌	Simulation	sort_ascii_c_locale	15.9 ms	17.4 ms	-8.72%
❌	Simulation	sort_numeric_utf8_locale	19.8 ms	20.6 ms	-3.66%
⚡	Simulation	sort_general_numeric[200000]	709.9 ms	669.2 ms	+6.08%
❌	Simulation	sort_long_line[10000]	416.8 µs	482 µs	-13.52%
❌	Simulation	sort_unique_utf8_locale	35.7 ms	37.2 ms	-4.04%
⚡	Simulation	sort_key_field[500000]	774.7 ms	747.1 ms	+3.69%
❌	Simulation	sort_mixed_c_locale	35.6 ms	37 ms	-3.83%
⚡	Simulation	rm_force_files	2.1 ms	1.4 ms	+46.02%
⚡	Simulation	rm_multiple_files	2.2 ms	1.5 ms	+43.18%
⚡	Simulation	rm_recursive_tree	11.7 ms	8 ms	+45.62%
⚡	Simulation	rm_single_file	46.7 ms	29.5 ms	+58.11%
❌	Simulation	shuf_lines[100000]	28.2 ms	29.6 ms	-4.6%
❌	Simulation	shuf_repeat_sampling[50000]	4.7 ms	4.8 ms	-3.34%
...	...	...	...	...	...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.

---

_{Comparing oech3:nix-ctrlc (c74151d) with main (60b4d1b)}

Footnotes

1. 194 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. ↩

[oech3]

sort perf is still bad.

[github-actions]

GNU testsuite comparison:

GNU test failed: tests/misc/io-errors. tests/misc/io-errors is passing on 'main'. Maybe you have to rebase?
Skipping an intermittent issue tests/tty/tty-eof (passes in this run but fails in the 'main' branch)
Note: The gnu test tests/cp/copy-FMR is now being skipped but was previously passing.
Note: The gnu test tests/cp/link-heap is now being skipped but was previously passing.
Note: The gnu test tests/csplit/csplit-heap is now being skipped but was previously passing.
Note: The gnu test tests/cut/bounded-memory is now being skipped but was previously passing.
Note: The gnu test tests/cut/cut-huge-range is now being skipped but was previously passing.
Note: The gnu test tests/dd/no-allocate is now being skipped but was previously passing.
Note: The gnu test tests/expand/bounded-memory is now being skipped but was previously passing.
Note: The gnu test tests/printf/printf-surprise is now being skipped but was previously passing.
Note: The gnu test tests/shuf/shuf-reservoir is now being skipped but was previously passing.
Note: The gnu test tests/sort/sort-stale-thread-mem is now being skipped but was previously passing.
Note: The gnu test tests/sort/sort-u-FMR is now being skipped but was previously passing.
Note: The gnu test tests/unexpand/bounded-memory is now being skipped but was previously passing.