naoNao89:feature/o-direct-buffer-alignment - Branch - uutils/coreutils

dd: optimize O_DIRECT buffer alignment to reduce syscall overhead

#9104

Comparing

naoNao89:feature/o-direct-buffer-alignment

(

a713108

) with

main

(

1eea517

)

Untouched: 136

Skipped: 24

Benchmarks

24 total

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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*

Uses the CPU Simulation instrument
to collect CPU performance metrics.

dd_copy_1m_blocks[128]

src/uu/dd/benches/dd_bench.rs

Skipped

1.5 ms*

Uses the CPU Simulation instrument
to collect CPU performance metrics.

dd_copy_64k_blocks[64]

src/uu/dd/benches/dd_bench.rs

Skipped

609.9 µs*

Uses the CPU Simulation instrument
to collect CPU performance metrics.

dd_copy_8k_blocks[32]

src/uu/dd/benches/dd_bench.rs

Skipped

1 ms*

Uses the CPU Simulation instrument
to collect CPU performance metrics.

dd_copy_default[32]

src/uu/dd/benches/dd_bench.rs

Skipped

13.9 ms*

Uses the CPU Simulation instrument
to collect CPU performance metrics.

dd_copy_4k_blocks[24]

src/uu/dd/benches/dd_bench.rs

Skipped

1.3 ms*

Uses the CPU Simulation instrument
to collect CPU performance metrics.

dd_copy_with_seek[48]

src/uu/dd/benches/dd_bench.rs

Skipped

2.3 ms*

Uses the CPU Simulation instrument
to collect CPU performance metrics.

dd_copy_separate_blocks[48]

src/uu/dd/benches/dd_bench.rs

Skipped

44.1 ms*

Uses the CPU Simulation instrument
to collect CPU performance metrics.

dd_copy_partial[32]

src/uu/dd/benches/dd_bench.rs

Skipped

559.7 µs*

Uses the CPU Simulation instrument
to collect CPU performance metrics.

sort_german_c_locale