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Re: grep: unusually high memory use with '-o' option
From: |
Justin Pryzby |
Subject: |
Re: grep: unusually high memory use with '-o' option |
Date: |
Sat, 10 Dec 2005 20:38:17 -0500 |
User-agent: |
Mutt/1.5.11 |
On Sat, Dec 10, 2005 at 08:34:42PM -0500, pryzbyj wrote:
> Please see <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=280187>
> where it is documented that grep -o uses increasing amount of memory,
> probably indicating a leak. You can test with:
>
> grep '^c..........' /usr/share/dict/words >/tmp/words
> ./build-tree/grep-2.5.1/src/grep -of /tmp/words /usr/share/dict/words
>
> It seems to me that after each output, grep should return to the
> approximate memory usage as at the previous output. However, the
> memory usage instead increases, consistent with the report.
On second thought, this was nearsighted. Since grep -f leaks, grep
-of leaks. grep -o seems to have been fixed since the report was
submitted.
--
Clear skies,
Justin