+ grep-2.2/src/grep -E -v -m1 -f grep-patterns.txt /dev/null grep-2.2/src/grep: invalid option -- 'm' Usage: grep [OPTION]... PATTERN [FILE]... Try `grep --help' for more information. real 0.00 user 0.00 sys 0.00 + grep-2.3/src/grep -E -v -m1 -f grep-patterns.txt /dev/null grep-2.3/src/grep: invalid option -- 'm' Usage: grep [OPTION]... PATTERN [FILE]... Try `grep --help' for more information. real 0.00 user 0.00 sys 0.00 + grep-2.4/src/grep -E -v -m1 -f grep-patterns.txt /dev/null grep-2.4/src/grep: invalid option -- 'm' Usage: grep [OPTION]... PATTERN [FILE]... Try `grep --help' for more information. real 0.00 user 0.00 sys 0.00 + grep-2.4.1/src/grep -E -v -m1 -f grep-patterns.txt /dev/null grep-2.4.1/src/grep: invalid option -- 'm' Usage: grep [OPTION]... PATTERN [FILE]... Try `grep --help' for more information. real 0.00 user 0.00 sys 0.00 + grep-2.4.2/src/grep -E -v -m1 -f grep-patterns.txt /dev/null grep-2.4.2/src/grep: invalid option -- 'm' Usage: grep [OPTION]... PATTERN [FILE]... Try `grep --help' for more information. real 0.00 user 0.00 sys 0.00 + grep-2.5.4/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 13.58 user 13.43 sys 0.14 + grep-2.6/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.95 user 3.51 sys 0.42 + grep-2.6.1/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.97 user 3.86 sys 0.11 + grep-2.6.2/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.98 user 3.69 sys 0.28 + grep-2.6.3/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.99 user 3.94 sys 0.04 + grep-2.7/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.93 user 3.68 sys 0.24 + grep-2.8/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.89 user 3.83 sys 0.05 + grep-2.9/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.92 user 3.63 sys 0.27 + grep-2.10/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.93 user 3.65 sys 0.27 + grep-2.11/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.98 user 3.89 sys 0.08 + grep-2.12/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.95 user 3.87 sys 0.06 + grep-2.13/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.97 user 3.85 sys 0.11 + grep-2.14/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 4.01 user 3.91 sys 0.09 + grep-2.15/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 4.05 user 3.99 sys 0.05 + grep-2.16/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.91 user 3.50 sys 0.40 + grep-2.17/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.98 user 3.94 sys 0.03 + grep-2.18/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 3.98 user 3.87 sys 0.10 + grep-2.19/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 0.54 user 0.50 sys 0.03 + grep-2.20/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 0.62 user 0.57 sys 0.04 + grep-2.21/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 0.43 user 0.41 sys 0.02 + grep-2.22/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 0.18 user 0.16 sys 0.01 + grep-2.23/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 0.18 user 0.13 sys 0.04 + grep-2.24/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 0.18 user 0.13 sys 0.04 + grep-2.25/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 0.18 user 0.16 sys 0.01 + grep-2.26/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 0.18 user 0.14 sys 0.04 + grep-2.27/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 0.17 user 0.15 sys 0.02 + grep-2.28/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 7.22 user 7.14 sys 0.07 + grep-3.0/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 7.26 user 7.11 sys 0.14 + grep-3.1/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 7.22 user 6.88 sys 0.33 + grep-3.2/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 7.20 user 7.04 sys 0.15 + grep-3.3/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 7.24 user 7.17 sys 0.07 + grep-3.4/src/grep -E -v -m1 -f grep-patterns.txt /dev/null real 7.13 user 6.49 sys 0.63
It seems to a lot of time is spent in dfa.c:replace(). It was added at d6df3873c7abc243683d0e8fccbfde4e76f23e53 in gnulib.
