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Re: Why does not rgrep use "grep -r"?
From: |
Andreas Schwab |
Subject: |
Re: Why does not rgrep use "grep -r"? |
Date: |
Sat, 03 Nov 2007 00:29:20 +0100 |
User-agent: |
Gnus/5.110006 (No Gnus v0.6) Emacs/22.1 (gnu/linux) |
Miles Bader <address@hidden> writes:
> I don't know the reason of the rgrep authors (though I suspect it was
> portability concerns), but I have noticed something odd about "grep -r":
> -- sometimes it seems _much_ slower than "find ... -type f | xargs grep"
> on very large trees (I think I noticed with trees in NFS, where speed is
> a perennial issue).
Probably because find has been optimized for, umm, finding files. There
are quite a few things you can do to speed up directory traversal.
Andreas.
--
Andreas Schwab, SuSE Labs, address@hidden
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
- Why does not rgrep use "grep -r"?, Lennart Borgman (gmail), 2007/11/02
- Re: Why does not rgrep use "grep -r"?, Miles Bader, 2007/11/02
- Re: Why does not rgrep use "grep -r"?,
Andreas Schwab <=
- Re: Why does not rgrep use "grep -r"?, Lennart Borgman (gmail), 2007/11/02
- Re: Why does not rgrep use "grep -r"?, Miles Bader, 2007/11/02
- Re: Why does not rgrep use "grep -r"?, Lennart Borgman (gmail), 2007/11/02
- Re: Why does not rgrep use "grep -r"?, Miles Bader, 2007/11/02
- Re: Why does not rgrep use "grep -r"?, Eli Zaretskii, 2007/11/03
- Re: Why does not rgrep use "grep -r"?, David Kastrup, 2007/11/03
- Re: Why does not rgrep use "grep -r"?, Eli Zaretskii, 2007/11/03
- Re: Why does not rgrep use "grep -r"?, Lennart Borgman (gmail), 2007/11/03
- Re: Why does not rgrep use "grep -r"?, David Kastrup, 2007/11/04
- Re: Why does not rgrep use "grep -r"?, Eli Zaretskii, 2007/11/05