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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
Mode
CPU Simulation
Wall Time
Memory
Status
Improvement
Untouched
Ignored
Skipped
350 total
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_1m_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
×7.5
1,226.9 µs
164.1 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_64k_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
+22%
365.8 µs
298.7 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_partial
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
+2%
319.8 µs
313.7 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_8k_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
+2%
776.3 µs
761.7 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_with_skip
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
+1%
2 ms
1.9 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_4k_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
+1%
1.1 ms
1.1 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_with_seek
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
+1%
2 ms
2 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
sort_numeric[500000]
src/uu/sort/benches/sort_bench.rs
CodSpeed Performance Gauge
0%
1 s
1 s
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
b64_encode_synthetic
src/uu/base64/benches/base64_bench.rs
CodSpeed Performance Gauge
0%
58.9 µs
58.9 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
wc_bytes_synthetic[500]
src/uu/wc/benches/wc_bench.rs
CodSpeed Performance Gauge
0%
86.4 µs
86.3 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
wc_bytes_synthetic[1]
src/uu/wc/benches/wc_bench.rs
CodSpeed Performance Gauge
0%
86.1 µs
86.1 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
sort_german_c_locale
src/uu/sort/benches/sort_locale_c_bench.rs
CodSpeed Performance Gauge
0%
36.2 ms
36.2 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
b64_decode_ignore_garbage_synthetic
src/uu/base64/benches/base64_bench.rs
CodSpeed Performance Gauge
0%
63.2 µs
63.1 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
factor_multiple_u64s[2]
src/uu/factor/benches/factor_bench.rs
CodSpeed Performance Gauge
0%
33 ms
33 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
hostname_basic
src/uu/hostname/benches/hostname_bench.rs
CodSpeed Performance Gauge
0%
159.6 µs
159.5 µs
Uses the
Memory instrument
to collect Memory usage metrics.
socket_addrs_direct[100000]
src/uu/hostname/benches/hostname_bench.rs
CodSpeed Performance Gauge
0%
8.7 KB
8.6 KB
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
cp_recursive_balanced_tree[(5, 4, 10)]
src/uu/cp/benches/cp_bench.rs
CodSpeed Performance Gauge
0%
71.4 ms
71.4 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
df_deep_directory
src/uu/df/benches/df_bench.rs
CodSpeed Performance Gauge
0%
384.4 µs
384.3 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
b64_decode_synthetic
src/uu/base64/benches/base64_bench.rs
CodSpeed Performance Gauge
0%
63.4 µs
63.4 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
hostname_ip_lookup[100000]
src/uu/hostname/benches/hostname_bench.rs
CodSpeed Performance Gauge
0%
117.7 µs
117.7 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
mv_multiple_to_dir
src/uu/mv/benches/mv_bench.rs
CodSpeed Performance Gauge
0%
12.3 ms
12.3 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
rm_single_file
src/uu/rm/benches/rm_bench.rs
CodSpeed Performance Gauge
0%
46.6 ms
46.6 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
df_with_path
src/uu/df/benches/df_bench.rs
CodSpeed Performance Gauge
0%
302.9 µs
302.8 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
csplit_line_number
src/uu/csplit/benches/csplit_bench.rs
CodSpeed Performance Gauge
0%
28.5 ms
28.5 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
cp_preserve_metadata[(5, 4, 10)]
src/uu/cp/benches/cp_bench.rs
CodSpeed Performance Gauge
0%
73.8 ms
73.8 ms
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14
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
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