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dd: improve allocation strategy for huge bs
#11577
Closed
Comparing
oech3:dd0malloc
(
275fae1
) with
main
(
44aff6b
)
CodSpeed Performance Gauge
×7.5
Improvement
2
Untouched
307
Ignored
1
Skipped
46
Benchmarks
Mode
CPU Simulation
Wall Time
Memory
Status
Improvement
Untouched
Ignored
Skipped
356 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
1,227.5 µs
164.6 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
+21%
366 µs
303 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_partial
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
+1%
317.8 µs
313.9 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_default
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
-1%
13.7 ms
13.8 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
timeout_quick_exit
src/uu/timeout/benches/timeout_bench.rs
CodSpeed Performance Gauge
-1%
196.3 µs
197.9 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
+1%
776 µs
771.1 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_with_seek
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
2 ms
2 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
du_deep_tree[(100, 3)]
src/uu/du/benches/du_bench.rs
CodSpeed Performance Gauge
0%
1.1 ms
1.1 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
du_summarize_balanced_tree[(5, 4, 10)]
src/uu/du/benches/du_bench.rs
CodSpeed Performance Gauge
0%
6.8 ms
6.9 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
du_max_depth_balanced_tree[(6, 4, 10)]
src/uu/du/benches/du_bench.rs
CodSpeed Performance Gauge
0%
26.2 ms
26.3 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
du_wide_tree[(5000, 500)]
src/uu/du/benches/du_bench.rs
CodSpeed Performance Gauge
0%
9.4 ms
9.4 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
cksum_crc32b
src/uu/cksum/benches/cksum_bench.rs
CodSpeed Performance Gauge
0%
13 ms
13.1 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
0%
1.1 ms
1.1 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_with_skip
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
2 ms
2 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
socket_addrs_direct[100000]
src/uu/hostname/benches/hostname_bench.rs
CodSpeed Performance Gauge
0%
55.1 µs
55.2 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
cksum_raw_output
src/uu/cksum/benches/cksum_bench.rs
CodSpeed Performance Gauge
0%
16.7 ms
16.7 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
cksum_crc
src/uu/cksum/benches/cksum_bench.rs
CodSpeed Performance Gauge
0%
16.7 ms
16.8 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
sort_reverse_locale[500000]
src/uu/sort/benches/sort_bench.rs
CodSpeed Performance Gauge
0%
332.3 ms
333 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
du_all_wide_tree[(5000, 500)]
src/uu/du/benches/du_bench.rs
CodSpeed Performance Gauge
0%
16.5 ms
16.5 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
single_date_now
src/uu/date/benches/date_bench.rs
CodSpeed Performance Gauge
0%
85.9 µs
85.7 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
cksum_default
src/uu/cksum/benches/cksum_bench.rs
CodSpeed Performance Gauge
0%
16.7 ms
16.7 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
cksum_sysv
src/uu/cksum/benches/cksum_bench.rs
CodSpeed Performance Gauge
0%
48 ms
48.1 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
cut_fields_newline_delim
src/uu/cut/benches/cut_bench.rs
CodSpeed Performance Gauge
0%
192.8 µs
193 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
split_bytes
src/uu/split/benches/split_bench.rs
CodSpeed Performance Gauge
0%
401.8 µs
402.3 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
b64_encode_synthetic
src/uu/base64/benches/base64_bench.rs
CodSpeed Performance Gauge
0%
58.7 µs
58.6 µs
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15
Commits
Click on a commit to change the comparison range
Base
main
44aff6b
×7.5
dd: improve allocation strategy for huge bs
275fae1
5 months ago
by oech3
© 2026 CodSpeed Technology
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