[Bug 254763] grep very slow with 13.0-RC4

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Mon May 10 13:37:02 UTC 2021


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254763

--- Comment #5 from parv <parv.0zero9+freebsd at gmail.com> ---
(In reply to parv from comment #4)

I should have also mentioned that above egrep were tested with 2 pairs of
locale configuration (time result is same enough) ...

  # root user.
  LANG=C.UTF-8

  # Not root user.
  LANG=en_US.UTF-8
  LC_COLLATE=C
  LC_CTYPE=en_US.UTF-8
  LC_MESSAGES=en_US.UTF-8
  LC_MONETARY=en_US.UTF-8


User CPU time of "egrep -i" improves with C locale ("env LANG=C LC_ALL=C egrep
-i ...") ...

  38.24 real  36.44 user  0.61 sys  # Just after loading RAM as mentioned in
#4.
  44.32 real  38.10 user  0.59 sys  # Successive runs ...
  39.88 real  39.00 user  0.59 sys  # ... after few minutes.

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