Created
March 4, 2012 12:31
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multiprocess zgrep
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| $ time find /opt/local/share/emacs/23.4/lisp/ -type f -name \*.gz -exec zgrep --color=yes -H -n -e "conf-mode" {} \; | |
| real 0m12.239s | |
| user 0m7.327s | |
| sys 0m6.804s | |
| $ time find /opt/local/share/emacs/23.4/lisp/ -type f -name \*.gz -exec zgrep --color=yes -H -n -e "conf-mode" {} + | |
| real 0m8.574s | |
| user 0m4.950s | |
| sys 0m5.995s | |
| $ time find /opt/local/share/emacs/23.4/lisp/ -type f -name \*.gz -print | parallel zgrep --color=yes -H -n -e "conf-mode" | |
| real 0m5.092s | |
| user 0m13.632s | |
| sys 0m14.330s | |
| $ time find /opt/local/share/emacs/23.4/lisp/ -type f -name \*.gz -print0 | xargs -0 -n 1 -P $( sysctl -n hw.ncpu ) zgrep --color=yes -H -n -e "conf-mode" | |
| real 0m3.322s | |
| user 0m10.596s | |
| sys 0m10.220s |
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Useful!