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Hardlink doesn't preserve dates
Posted: Mon Oct 06, 2008 10:15 pm
by batat
Hardlink doesn't preserve date of creation, modification and last access.
Also comparison of files seems quite slow. Are you using filters in right order? Also calculating crc from random small piece can do a trick.
Posted: Tue Oct 07, 2008 8:46 am
by DV
Ok - will look into hardlink attributes.
Filters should be optimized - if the files sizes are the same only a small chunk of the file is checked first to see if it's worth calculating a full crc
Posted: Sun Mar 15, 2009 10:41 am
by Bitofawally
What is a crc?
Posted: Sun Mar 15, 2009 11:26 am
by DV
A Cyclic redundancy check - it's a kind of fingerprint for each file.
Posted: Fri Mar 20, 2009 12:31 pm
by WillianBR
Bitofawally, CRC is a hash algorithm. It's used the get a magic number based on file content. But it's not the best (CRC16 ou CRC32). We can get colision some times. We can found best options (MD5, SHA-1, SHA-256, Tiger, GOST-Hash, etc). But if you increase the level, you will get extra overclock too!