Re: [Qemu-devel] [PATCH] link to .xz files to save some bandwidth

[Laszlo Ersek]

On 02/08/17 09:49, Markus Armbruster wrote:
> Eric Blake <address@hidden> writes:
> 
>> On 02/07/2017 09:59 AM, Paolo Bonzini wrote:
>>> I have converted all .gz and .bz2 files to .xz on download.qemu.org
>>> and this patch would change the links in the website.  This would save
>>> about 5 GB of bandwidth every day (about 20% savings).
>>>
>>> xz should be available for all platforms.  Besides providing better
>>> compression ratios, decompression of .xz files is about twice as fast
>>> compared to bzip2.  Compression instead is about 5.5 times slower.
>>
>> I agree that bzip2 is pointless these days; .gz is a bit more important
>> when targetting older platforms but I think that does not describe
>> qemu's target audience.  Do we want to even enter the xz vs. lzma
>> controversy, or are we okay with being xz-only?
> 
> Pointer to / summary of the controversy, so that folks can decide
> whether they care?
> 

http://www.nongnu.org/lzip/xz_inadequate.html

https://www.reddit.com/r/linux/comments/58swzc/xz_format_inadequate_for_longterm_archiving/