oech3:dd-malloc-2 - Branch - uutils/coreutils - CodSpeed

Blog Docs Changelog

dd: improve malloc perf

#11677Closed

Comparing

oech3:dd-malloc-2

(

736cf57

) with

main

(

56210f1

)

×7.8

Improvement: 8

Untouched: 301

Ignored: 1

Skipped: 46

Benchmarks

356 total

dd_copy_1m_blocks

src/uu/dd/benches/dd_bench.rs

×7.8

1,228.3 µs157.2 µs

dd_copy_64k_blocks

src/uu/dd/benches/dd_bench.rs

+44%

366.2 µs255.2 µs

dd_copy_with_seek

src/uu/dd/benches/dd_bench.rs

+37%

2 ms1.5 ms

dd_copy_with_skip

src/uu/dd/benches/dd_bench.rs

+36%

2 ms1.4 ms

dd_copy_4k_blocks

src/uu/dd/benches/dd_bench.rs

+34%

1,078.7 µs803.7 µs

dd_copy_8k_blocks

src/uu/dd/benches/dd_bench.rs

+32%

776.8 µs588.3 µs

dd_copy_default

src/uu/dd/benches/dd_bench.rs

+26%

13.7 ms10.9 ms

dd_copy_partial

src/uu/dd/benches/dd_bench.rs

+19%

320 µs269.8 µs

dd_copy_separate_blocks

src/uu/dd/benches/dd_bench.rs

+1%

43.9 ms43.6 ms

du_summarize_balanced_tree[(5, 4, 10)]

src/uu/du/benches/du_bench.rs

0%

6.7 ms6.7 ms

sort_unique_locale[500000]

src/uu/sort/benches/sort_bench.rs

0%

464.9 ms463.9 ms

cp_preserve_metadata[(5, 4, 10)]

src/uu/cp/benches/cp_bench.rs

0%

73.7 ms73.6 ms

du_all_wide_tree[(5000, 500)]

src/uu/du/benches/du_bench.rs

0%

16.5 ms16.5 ms

b64_encode_synthetic

src/uu/base64/benches/base64_bench.rs

0%

58.5 µs58.4 µs

hostname_basic

src/uu/hostname/benches/hostname_bench.rs

0%

159.4 µs159.2 µs

b64_decode_ignore_garbage_synthetic

src/uu/base64/benches/base64_bench.rs

0%

62.8 µs62.8 µs

hostname_ip_lookup[100000]

src/uu/hostname/benches/hostname_bench.rs

0%

117.6 µs117.5 µs

wc_bytes_synthetic[500]

src/uu/wc/benches/wc_bench.rs

0%

86 µs85.9 µs

wc_bytes_synthetic[1]

src/uu/wc/benches/wc_bench.rs

0%

86.5 µs86.5 µs

cp_archive_balanced_tree[(5, 4, 10)]

src/uu/cp/benches/cp_bench.rs

0%

76.8 ms76.8 ms

single_date_now

src/uu/date/benches/date_bench.rs

0%

101.2 µs101.2 µs

df_deep_directory

src/uu/df/benches/df_bench.rs

0%

385.3 µs385.2 µs

sort_german_de_locale

src/uu/sort/benches/sort_locale_de_bench.rs

0%

131.8 ms131.8 ms

factor_multiple_u64s[2]

src/uu/factor/benches/factor_bench.rs

0%

33 ms33 ms

mv_multiple_to_dir

src/uu/mv/benches/mv_bench.rs

0%

12.3 ms12.3 ms

Commits

Click on a commit to change the comparison range

Base

main

56210f1

×7.8

dd: improve allocation strategy for huge bs

736cf57

2 months ago

by oech3

© 2026 CodSpeed Technology

Home Terms Privacy Docs