Pieter Wuille wrote at about 01:11:27 +0100 on Wednesday, December 2, 2009:
 > See attachment. You can run eg.:
 > 
 >    ./diffsize.pl /var/lib/backuppc/pc/*
 > 
 > to see values per host, and a total.


I ran it on a small 'testmachine' backup and I got either perl errors
or long floating point numbers for sizes (which doesn't make sense):

$ ./diffsize.pl /var/lib/backuppc/pc/testmachine
Use of uninitialized value in bitwise and (&) at
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/Fcntl.pm line 213.
Use of uninitialized value in bitwise and (&) at
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/Fcntl.pm line 212.
/var/lib/BackupPC/testmachine:
total:


$ cd /var/lib/backuppc/pc
$ ./diffsize.pl testmachine
testmachine: alloc=185535.999147519 dalloc=45056 dentries=100
dsize=45056 falloc=140479.999147519 fcount=36.791192973693
fsize=30388.0693956044
total: alloc=185535.999147519 dalloc=45056 dentries=100 dsize=45056
falloc=140479.999147519 fcount=36.791192973693 fsize=30388.0693956044

Also, I think there is a slight optimization possible since you don't
need to tabulate $size{alloc} on each file & dir since you can just do
once for each machine:
   $size{alloc} = $size{falloc} + $size{dalloc}

Finally, it might also be nice to tabulate separately the number of
(regular) files vs. directories (you currently just tabulate dentries which
nominally is equal to the number of directories plus regular files though
technically it could include non-regular files but there shouldn't be
any of those...)

Nice script...

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