[jcfangc]

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[codspeed]

Merging this PR will regress 1 benchmark

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 13 improved benchmarks
❌ 1 regressed benchmark
✅ 213 untouched benchmarks
🆕 516 new benchmarks
⏩ 210 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
❌	cmp/len_64/identical/ours_string	499.7 ns	558.1 ns	-10.45%
⚡	count_ones/len_4096/all_zeros/leading/ours_string	180.6 ns	151.4 ns	+19.27%
⚡	count_ones/len_65/all_zeros/leading/ours_string	180.6 ns	151.4 ns	+19.27%
⚡	count_zeros/len_65/dense/leading/ours_str	183.9 ns	154.7 ns	+18.85%
⚡	count_zeros/len_65/dense/trailing/ours_str	250.3 ns	221.1 ns	+13.19%
⚡	count_zeros/len_65/alternating/trailing/ours_str	251.4 ns	222.2 ns	+13.13%
⚡	count_ones/len_4096/all_zeros/leading/ours_str	271.7 ns	242.5 ns	+12.03%
⚡	count_ones/len_65/all_zeros/leading/ours_str	271.7 ns	242.5 ns	+12.03%
⚡	count_ones/len_65/all_zeros/trailing/ours_str	276.4 ns	247.2 ns	+11.8%
⚡	count_ones/len_65/dense/trailing/ours_str	277.8 ns	248.6 ns	+11.73%
⚡	count_ones/len_65/alternating/ours_string	278.6 ns	249.4 ns	+11.69%
⚡	count_ones/len_65/dense/ours_string	278.6 ns	249.4 ns	+11.69%
⚡	count_ones/len_65/sparse/ours_string	278.6 ns	249.4 ns	+11.69%
⚡	count_zeros/len_65/all_zeros/trailing/ours_str	279.7 ns	250.6 ns	+11.64%
🆕	packed_access/get_random_stream/bits_1_len_1048576/ours_packed_str_unaligned	N/A	17.9 ms	N/A
🆕	packed_access/get_random_stream/bits_1_len_1048576/ours_packed_string	N/A	14.2 ms	N/A
🆕	packed_access/get_sequential/bits_1_len_1048576/ours_packed_str_unaligned	N/A	11.4 ms	N/A
🆕	packed_access/get_sequential/bits_1_len_1048576/ours_packed_string	N/A	9.1 ms	N/A
🆕	packed_access/get_random_stream/bits_1_len_64/ours_packed_str_unaligned	N/A	1.4 µs	N/A
🆕	packed_access/get_random_stream/bits_1_len_64/ours_packed_string	N/A	994.7 ns	N/A
...	...	...	...	...

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

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

---

_{Comparing perf/packed-api (3a73633) with main (4e3b6b7)}

Footnotes

1. 210 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. ↩