sort: Replace malloc and 0 fill with huge reserve & min 0 fill #10975

Performance Gate Passed

⚡ 22 improved benchmarks
✅ 266 untouched benchmarks
⏩ 38 skipped benchmarks¹

	Mode	Benchmark	`BASE`	`HEAD`	Efficiency
⚡	Simulation	`sort_ascii_c_locale`	18.2 ms	16 ms	+13.9%
⚡	Simulation	`sort_german_c_locale`	37.3 ms	36.2 ms	+3.06%
⚡	Simulation	`sort_ascii_utf8_locale`	17.6 ms	15.8 ms	+11.51%
⚡	Simulation	`sort_unique_utf8_locale`	37.4 ms	36.2 ms	+3.31%
⚡	Simulation	`sort_long_line[160000]`	1,433.6 µs	870 µs	+64.78%
⚡	Memory	`sort_german_de_locale`	2.7 MB	1.8 MB	+49.14%
⚡	Memory	`sort_dictionary_order[500000]`	22 MB	20.5 MB	+7.08%
⚡	Memory	`sort_reverse_locale[500000]`	21.6 MB	20.5 MB	+5.27%
⚡	Memory	`sort_mixed_utf8_locale`	2.6 MB	2.3 MB	+11.26%
⚡	Memory	`sort_general_numeric[200000]`	23.6 MB	22.8 MB	+3.3%
⚡	Memory	`sort_unique_utf8_locale`	3.7 MB	3.5 MB	+7.53%
⚡	Memory	`sort_unique_locale[500000]`	33 MB	31.9 MB	+3.38%
⚡	Memory	`sort_ascii_c_locale`	5.1 MB	4.6 MB	+10.16%
⚡	Memory	`sort_accented_data[500000]`	21.6 MB	20.5 MB	+5.27%
⚡	Memory	`sort_mixed_c_locale`	2.6 MB	2.3 MB	+11.26%
⚡	Memory	`sort_numeric[500000]`	44.8 MB	43.3 MB	+3.34%
⚡	Memory	`sort_long_line[160000]`	702 KB	604.4 KB	+16.16%
⚡	Memory	`sort_ascii_utf8_locale`	5.1 MB	4.6 MB	+10.16%
⚡	Memory	`sort_reverse_utf8_locale`	2.6 MB	2.3 MB	+11.26%
⚡	Memory	`sort_german_c_locale`	2.7 MB	1.8 MB	+49.14%
...	...	...	...	...	...

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

_{Comparing oech3:sort-malloc0 (b29693a) with main (8c98b15)}

38 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. ↩