Alan Cox <a...@cs.rice.edu> writes: > Here is what actually puzzles me about these results. With > traditional I/O, even after the optimizations to bsdgrep, the system > time for gnugrep is still less than half that of the optimized > bsdgrep. I haven't looked at the changes, but I would have thought > the system time for gnugrep and bsdgrep would be almost the same.
Two reasons: 1) BSD grep does tons of unnecessary memory-to-memory copy operations in grep_fgetln(). 2) GNU grep has its own highly optimized regex code. DES -- Dag-Erling Smørgrav - d...@des.no _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
