Official request: Please make GNU grep the default

Dag-Erling Smørgrav des at des.no
Fri Aug 20 09:10:22 UTC 2010


Doug Barton <dougb at FreeBSD.org> writes:
> There are 2 questions, did I do the right thing, and how should people
> report problems in general. As for myself, while I have some facility
> in C it's not my strong suit. Yes, I could have produced a profiling
> version of grep, but it would have taken me a lot more than 10 minutes
> because I don't even build the profiled libs on a regular basis.

That's fair.  I didn't use to do that because it increases build time
considerably, but now I do.

If you have profiling libraries installed, you can build a profiling
version of grep (or any program) like so:

% cd /usr/src/usr.bin/grep
% make clean
% make DEBUG_FLAGS="-pg -g" -DNO_SHARED

Do *not" make install, because the result will be dog slow and you don't
want to use it in production.  Every time you run it, it will leave a
file named grep.gmon in your current directory, so:

% /usr/obj/usr/src/usr.bin/grep/grep -q "^xfce4-wm" /usr/ports/INDEX-9
% gprof /usr/obj/usr/src/usr.bin/grep/grep grep.gmon | less

> More generally however I think that we need to be realistic with what
> we expect people to do about reporting problems.

This is not about "what we expect people to do" but about "what I expect
*you*, an experienced FreeBSD committer, to do" :)

DES
-- 
Dag-Erling Smørgrav - des at des.no


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