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Speed difference between GNU grep and OSX 10.8 BSD grep
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| $ grep --version | |
| grep (BSD grep) 2.5.1-FreeBSD | |
| $ ggrep --version | |
| ggrep (GNU grep) 2.14 | |
| # Here it goes | |
| $ time cat varnish_log_200_only.txt | ggrep -F 'www.some.url.gov' | wc -l | |
| 957979 | |
| real 0m27.424s | |
| user 0m27.428s | |
| sys 0m1.481s | |
| $ time cat varnish_log_200_only.txt | grep -F 'www.some.url.gov' | wc -l | |
| 957979 | |
| real 0m58.179s | |
| user 0m58.168s | |
| sys 0m1.845s |
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Mavericks' grep version is unchanged from Mountain Lion:
$ uname -a && grep -V
Darwin kerbcrawler 13.0.0 Darwin Kernel Version 13.0.0: Thu Sep 19 22:22:27 PDT 2013; root:xnu-2422.1.72~6/RELEASE_X86_64 x86_64
grep (BSD grep) 2.5.1-FreeBSD