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perf(nl): optimize line numbering by using itoa and direct writing
#10757
Comparing
CrazyRoka:optimize-nl-formatting
(
78910ec
) with
main
(
398e4ba
)
CodSpeed Performance Gauge
×2.2
Improvement
2
Untouched
282
Skipped
38
Benchmarks
Mode
CPU Simulation
Wall Time
Memory
Status
Improvement
Untouched
Skipped
322 total
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
nl_many_lines[100000]
src/uu/nl/benches/nl_bench.rs
CodSpeed Performance Gauge
×2.2
46.1 ms
20.8 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
nl_large_file[10]
src/uu/nl/benches/nl_bench.rs
CodSpeed Performance Gauge
×2.2
58.8 ms
26.9 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
+2%
7.1 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
+2%
27.4 ms
26.9 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
+1%
10 ms
9.9 ms
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%
1 ms
1 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
sort_accented_data[500000]
src/uu/sort/benches/sort_bench.rs
CodSpeed Performance Gauge
+1%
340.7 ms
338.8 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_1m_blocks
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
1.5 ms
1.5 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%
16.7 ms
16.7 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
dd_copy_partial
src/uu/dd/benches/dd_bench.rs
CodSpeed Performance Gauge
0%
565.3 µs
563.9 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
cksum_crc32b
src/uu/cksum/benches/cksum_bench.rs
CodSpeed Performance Gauge
0%
13.1 ms
13.1 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
sort_unique_utf8_locale
src/uu/sort/benches/sort_locale_utf8_bench.rs
CodSpeed Performance Gauge
0%
37 ms
37 ms
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%
44.1 ms
44 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%
189.9 µs
189.8 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
shuf_lines[100000]
src/uu/shuf/benches/shuf_bench.rs
CodSpeed Performance Gauge
0%
27.1 ms
27.1 ms
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%
37.4 ms
37.3 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
complex_relative_date
src/uu/date/benches/date_bench.rs
CodSpeed Performance Gauge
0%
246.1 µs
246 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
0%
1.3 ms
1.3 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%
401.5 µs
401.4 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
sort_mixed_c_locale
src/uu/sort/benches/sort_locale_c_bench.rs
CodSpeed Performance Gauge
0%
36.8 ms
36.7 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
cp_archive_balanced_tree[(5, 4, 10)]
src/uu/cp/benches/cp_bench.rs
CodSpeed Performance Gauge
0%
77.2 ms
77.2 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
ls_recursive_deep_tree[(200, 2)]
src/uu/ls/benches/ls_bench.rs
CodSpeed Performance Gauge
0%
2.2 ms
2.2 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
b64_encode_synthetic
src/uu/base64/benches/base64_bench.rs
CodSpeed Performance Gauge
0%
166.6 µs
166.6 µs
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
sort_unique_locale[500000]
src/uu/sort/benches/sort_bench.rs
CodSpeed Performance Gauge
0%
470 ms
469.9 ms
Uses the
CPU Simulation instrument
to collect CPU performance metrics.
fold_many_lines[100000]
src/uu/fold/benches/fold_bench.rs
CodSpeed Performance Gauge
0%
61.8 ms
61.8 ms
1
2
...
13
Commits
Click on a commit to change the comparison range
Base
main
398e4ba
×2.2
perf(nl): optimize line numbering by using itoa and direct writing
78910ec
18 hours ago
by CrazyRoka
© 2026 CodSpeed Technology
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