Avatar for the uutils user
uutils
coreutils
BlogDocsChangelog

dd: improve allocation strategy for huge bs

#11577
Comparing
oech3:dd0malloc
(
b2e307c
) with
main
(
7ab8a17
)
CodSpeed Performance Gauge
×7.5
Improvement
2
Untouched
301
Ignored
1
Skipped
46

Benchmarks

350 total
dd_copy_1m_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
×7.5
1,226.9 µs164.1 µs
dd_copy_64k_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
+22%
365.8 µs298.7 µs
dd_copy_partial
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
+2%
319.8 µs313.7 µs
dd_copy_8k_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
+2%
776.3 µs761.7 µs
dd_copy_with_skip
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
+1%
2 ms1.9 ms
dd_copy_4k_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
+1%
1.1 ms1.1 ms
dd_copy_with_seek
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
+1%
2 ms2 ms
sort_numeric[500000]
src/uu/sort/benches/sort_bench.rs
CodSpeed Performance Gauge
0%
1 s1 s
b64_encode_synthetic
src/uu/base64/benches/base64_bench.rs
CodSpeed Performance Gauge
0%
58.9 µs58.9 µs
wc_bytes_synthetic[500]
src/uu/wc/benches/wc_bench.rs
CodSpeed Performance Gauge
0%
86.4 µs86.3 µs
wc_bytes_synthetic[1]
src/uu/wc/benches/wc_bench.rs
CodSpeed Performance Gauge
0%
86.1 µs86.1 µs
sort_german_c_locale
src/uu/sort/benches/sort_locale_c_bench.rs
CodSpeed Performance Gauge
0%
36.2 ms36.2 ms
b64_decode_ignore_garbage_synthetic
src/uu/base64/benches/base64_bench.rs
CodSpeed Performance Gauge
0%
63.2 µs63.1 µs
factor_multiple_u64s[2]
src/uu/factor/benches/factor_bench.rs
CodSpeed Performance Gauge
0%
33 ms33 ms
hostname_basic
src/uu/hostname/benches/hostname_bench.rs
CodSpeed Performance Gauge
0%
159.6 µs159.5 µs
socket_addrs_direct[100000]
src/uu/hostname/benches/hostname_bench.rs
CodSpeed Performance Gauge
0%
8.7 KB8.6 KB
cp_recursive_balanced_tree[(5, 4, 10)]
src/uu/cp/benches/cp_bench.rs
CodSpeed Performance Gauge
0%
71.4 ms71.4 ms
df_deep_directory
src/uu/df/benches/df_bench.rs
CodSpeed Performance Gauge
0%
384.4 µs384.3 µs
b64_decode_synthetic
src/uu/base64/benches/base64_bench.rs
CodSpeed Performance Gauge
0%
63.4 µs63.4 µs
hostname_ip_lookup[100000]
src/uu/hostname/benches/hostname_bench.rs
CodSpeed Performance Gauge
0%
117.7 µs117.7 µs
mv_multiple_to_dir
src/uu/mv/benches/mv_bench.rs
CodSpeed Performance Gauge
0%
12.3 ms12.3 ms
rm_single_file
src/uu/rm/benches/rm_bench.rs
CodSpeed Performance Gauge
0%
46.6 ms46.6 ms
df_with_path
src/uu/df/benches/df_bench.rs
CodSpeed Performance Gauge
0%
302.9 µs302.8 µs
csplit_line_number
src/uu/csplit/benches/csplit_bench.rs
CodSpeed Performance Gauge
0%
28.5 ms28.5 ms
cp_preserve_metadata[(5, 4, 10)]
src/uu/cp/benches/cp_bench.rs
CodSpeed Performance Gauge
0%
73.8 ms73.8 ms

Commits

Click on a commit to change the comparison range
Base
main
7ab8a17
×7.5
dd: improve allocation strategy for huge bs
b2e307c
4 days ago
by oech3
© 2026 CodSpeed Technology
Home Terms Privacy Docs