From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Sun, 14 Nov 2010 17:16:55 -0500
To: 9fans@9fans.net
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Subject: Re: [9fans] Plan9 development
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> > unfortunately, the last i checked, gnu grep mallocs
> > for each byte of input when using a utf-8 locale.
>
> that bug was fixed in gnu grep years ago,
> probably before you found and reported it.
> unfortunately, linux distributions were for
> many years not updating their copies of
> gnu grep to the latest version, so very few
> '/bin/grep's had the bug fix.

if i recall correctly, i found that in 2004 or 2005
and fixed it directly from the gnu.org source.
perhaps you remember something i don't.

in any event, it's still not really fixed.  utf-8
performance still sucks:

; grep --version >[2=1] | sed 1q
GNU grep 2.5.4
; time grep missingstring1 mail.tar
0.00u 0.00s 0.01r 	 grep missingstring1 mail.tar  # status=1
LANG=en_US.UTF-8 time grep missingstring1 mail.tar
0.44u 0.00s 0.53r 	 grep missingstring1 mail.tar  # status=1

- erik