search

sharkdp / hexyl

A command-line hex viewer
Apache License 2.0
9.07k stars 227 forks source link

Speed up hexyl #73

Closed sharkdp closed 4 years ago

sharkdp commented 4 years ago

this PR:

Command Mean [ms] Min [ms] Max [ms] Relative
hexyl data 588.3 ± 3.7 585.2 596.1 36.01
hexyl --color=never data 431.6 ± 7.0 425.2 447.5 26.42
hexdump -C data 16.3 ± 0.6 15.7 20.2 1.00
xxd data 706.3 ± 4.6 701.5 716.4 43.24

before:

Command Mean [s] Min [s] Max [s] Relative
hexyl data 1.031 ± 0.007 1.023 1.047 62.40
hexyl --color=never data 0.839 ± 0.005 0.834 0.848 50.79

benchmark command:

dd if=/dev/zero    bs=10M count=1 >  data
dd if=/dev/urandom bs=1k  count=1 >> data

hyperfine --warmup 5 \   
    'hexyl data' \
    'hexyl --color=never data' \
    'hexdump -C data' \
    'xxd data' \
    --export-markdown results.md

this means that we now clearly beat xxd (in this scenario) and can close #66 :smile: