Re: compressor
On Wednesday 22,August,2012 11:43 PM, Camaleón wrote:
> On Wed, 22 Aug 2012 21:40:36 +0800, lina wrote:
>
>> Basically which compressor is the most efficient one.
>
> Ha, that's like asking "what do clouds smell like"? >:-)
>
>> I got 2T data, basically won't get a chance to use in future, but still
>> need to keep there at least for the next two years just in case.
>>
>> so I tried the xz, but xz not support the directory? or maybe I don't
>> know how to compress the directory.
>
> This may help:
>
> http://unix.stackexchange.com/questions/28976/how-to-xz-a-directory-with-tar-using-maximum-compression
>
>> now tried the .bz2, but still very large.
>
> For my usual data backup I use tar and bz2 though I don't expect to compress
> too much but I need the best interop and compatibility.
>
> Anyway, what kind of data is that heap of 2 TiB?
Thanks. those data files accumulated there for 2 years, today just do
the clear up.
>
> Multimedia binary files (image, video, audio...) use their own
> compression algorithms so you are not going to get any noticeable gain
> when compressing these kind of files.
>
> For general purpose data compression, Wikipedia has a good list:
>
> http://en.wikipedia.org/wiki/Comparison_of_file_archivers
>
> And also some info on benchmarks:
>
> http://en.wikipedia.org/wiki/Lossless_compression_benchmarks#Lossless_compression_benchmarks
>
Thanks again for those links.
Warm regards,
> Greetings,
>
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