Build System wrote:
New package hardlink
Create a tree of hardlinks.
That's a bad description. I was wondering initially,
how this was different than `cp -al`.
It in fact merges duplicate files in a tree using hardlinks.
It's a nice util, but I've a few questions.
1. Does it really need it's own package?
Couldn't you try to get it included in util-linux
or some place like that?
2. No man page?
At least explain what the options do in usage()!
3. version 1.2 is in extras for ages but 1.0 is at following url?
http://download.fedora.redhat.com/pub/fedora/linux/core/development/SRPMS/
4. you assume a block size of 4KiB for calculating saved space?
5. It's significantly slower than the findup component of fslint
(which is also in extras). See below:
Note, findup has a -m option formerging with hardlinks also.
Also note the test data was 2 x 2.4.20 kernel trees
[pbrady@pixelbeat fslint]$ time ./findup ~/kernels/ >/dev/null
real 0m48.719s
user 0m14.070s
sys 0m13.990s
[pbrady@pixelbeat fslint]$ time ./findup ~/kernels/ >/dev/null
real 0m43.601s
user 0m13.790s
sys 0m14.660s
[pbrady@pixelbeat fslint]$ time ./findup ~/kernels/ >/dev/null
real 0m52.549s
user 0m13.540s
sys 0m15.270s
-----------------------------------------------
$ time ~/hardlink -cnv ~/kernels/ 2>/dev/null
real 1m6.230s
user 0m0.270s
sys 0m1.910s
[pbrady@pixelbeat fslint]$ time ~/hardlink -cnv ~/kernels/ 2>/dev/null
real 1m27.496s
user 0m0.350s
sys 0m2.320s
[pbrady@pixelbeat fslint]$ time ~/hardlink -cnv ~/kernels/ 2>/dev/null
real 1m5.037s
user 0m0.350s
sys 0m2.480s
--
Pádraig Brady - http://www.pixelbeat.org
--
