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dd: improve allocation strategy for huge bs
#11555
Closed
Comparing
oech3:dd-oom
(
198ece7
) with
main
(
f6451c7
)
CodSpeed Performance Gauge
×7.5
Improvement
2
Untouched
16
Skipped
332
Benchmarks
Mode
CPU Simulation
Wall Time
Memory
Status
Improvement
Untouched
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
1,229.7 µs
164.4 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
+20%
366.1 µs
306.1 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%
318.2 µs
313.7 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_separate_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
43.9 ms
43.9 ms
Uses the
Memory instrument
to collect Memory usage metrics.
dd_copy_8k_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
22.1 KB
22.1 KB
Uses the
Memory instrument
to collect Memory usage metrics.
dd_copy_1m_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
1 MB
1 MB
Uses the
Memory instrument
to collect Memory usage metrics.
dd_copy_with_seek
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
18.4 KB
18.4 KB
Uses the
Memory instrument
to collect Memory usage metrics.
dd_copy_with_skip
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
18.4 KB
18.4 KB
Uses the
Memory instrument
to collect Memory usage metrics.
dd_copy_4k_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
18.1 KB
18.1 KB
Uses the
Memory instrument
to collect Memory usage metrics.
dd_copy_64k_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
78.1 KB
78.1 KB
Uses the
Memory instrument
to collect Memory usage metrics.
dd_copy_partial
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
18.1 KB
18.1 KB
Uses the
Memory instrument
to collect Memory usage metrics.
dd_copy_separate_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
138.4 KB
138.4 KB
Uses the
Memory instrument
to collect Memory usage metrics.
dd_copy_default
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
14.8 KB
14.8 KB
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%
775.8 µs
785.8 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_4k_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
-2%
1.1 ms
1.1 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_default
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
-2%
13.7 ms
14.1 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
-2%
2 ms
2 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
-2%
2 ms
2.1 ms
The benchmarks below were skipped, so their baseline results are used instead. If they were deleted in your codebase, archive them to remove them from the performance reports.
Learn more about archiving benchmarks
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
du_balanced_tree[(5, 4, 10)]
src/uu/du/benches/du_bench.rs
Skipped
9.2 ms
*
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
du_all_balanced_tree[(4, 3, 10)]
src/uu/du/benches/du_bench.rs
Skipped
1.6 ms
*
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
factor_multiple_u128s[18446744073709551616]
src/uu/factor/benches/factor_bench.rs
Skipped
327.9 ms
*
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
factor_multiple_big_uint
src/uu/factor/benches/factor_bench.rs
Skipped
18.6 ms
*
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
du_human_balanced_tree[(5, 4, 10)]
src/uu/du/benches/du_bench.rs
Skipped
10.6 ms
*
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
factor_table
src/uu/factor/benches/factor_bench.rs
Skipped
189.5 ms
*
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_with_skip[48]
src/uu/dd/benches/dd_bench.rs
Skipped
2.2 ms
*
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5
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14
Commits
Click on a commit to change the comparison range
Base
main
f6451c7
-5.21%
dd: improve allocation strategy for huge bs
b6f8b41
7 hours ago
by oech3
×7.5
DO NOT MERGE
198ece7
2 hours ago
by oech3
© 2026 CodSpeed Technology
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