grep (BSD grep) 2.5.1-FreeBSD

BSD 版の grep です。多分もともと入っているやつ。

Average: 0.336

sh -c '\grep -i aoyama ken.csv > /dev/null'  0.32s user 0.01s system 96% cpu 0.347 total
sh -c '\grep -i aoyama ken.csv > /dev/null'  0.32s user 0.01s system 97% cpu 0.339 total
sh -c '\grep -i aoyama ken.csv > /dev/null'  0.30s user 0.01s system 97% cpu 0.322 total
sh -c '\grep -i aoyama ken.csv > /dev/null'  0.31s user 0.01s system 96% cpu 0.333 total
sh -c '\grep -i aoyama ken.csv > /dev/null'  0.31s user 0.01s system 97% cpu 0.336 total

ggrep (GNU grep) 2.28

GNU 版の grep です。Homebrew でインストールしました。

brew update
brew tap homebrew/dupes
brew install homebrew/dupes/grep

Average: 0.0176

sh -c '\ggrep -i aoyama ken.csv > /dev/null'  0.01s user 0.01s system 63% cpu 0.025 total
sh -c '\ggrep -i aoyama ken.csv > /dev/null'  0.01s user 0.01s system 61% cpu 0.021 total
sh -c '\ggrep -i aoyama ken.csv > /dev/null'  0.00s user 0.00s system 59% cpu 0.014 total
sh -c '\ggrep -i aoyama ken.csv > /dev/null'  0.00s user 0.00s system 56% cpu 0.015 total
sh -c '\ggrep -i aoyama ken.csv > /dev/null'  0.00s user 0.00s system 53% cpu 0.017 total

LANG=C ggrep

LANG=C 付き。

Average: 0.0136

sh -c 'LANG=C \ggrep -i aoyama ken.csv > /dev/null'  0.00s user 0.00s system 59% cpu 0.013 total
sh -c 'LANG=C \ggrep -i aoyama ken.csv > /dev/null'  0.00s user 0.00s system 65% cpu 0.014 total
sh -c 'LANG=C \ggrep -i aoyama ken.csv > /dev/null'  0.00s user 0.00s system 60% cpu 0.013 total
sh -c 'LANG=C \ggrep -i aoyama ken.csv > /dev/null'  0.01s user 0.01s system 59% cpu 0.025 total
sh -c 'LANG=C \ggrep -i aoyama ken.csv > /dev/null'  0.00s user 0.00s system 61% cpu 0.014 total

ag (The Silver Searcher)

@sugitk さんからコメントをいただいたので、メモを追加。
Homebrew でインストールしました。

brew install the_silver_searcher
ag --version
ag version 1.0.2

Features:
  +jit +lzma +zlib

Average: 0.0723

sh -c 'ag -i aoyama ken.csv > /dev/null'  0.04s user 0.02s system 86% cpu 0.076 total
sh -c 'ag -i aoyama ken.csv > /dev/null'  0.05s user 0.02s system 85% cpu 0.090 total
sh -c 'ag -i aoyama ken.csv > /dev/null'  0.04s user 0.02s system 87% cpu 0.070 total
sh -c 'ag -i aoyama ken.csv > /dev/null'  0.04s user 0.02s system 87% cpu 0.071 total
sh -c 'ag -i aoyama ken.csv > /dev/null'  0.04s user 0.02s system 87% cpu 0.068 total