libctf: improving the compressor, optionally-available algorithms

[Matthias Klose]

On 2/5/21 5:38 PM, Nick Alcock wrote:
> On 5 Feb 2021, Matthias Klose said:
>> On 2/5/21 1:17 PM, Nick Alcock via Binutils wrote:
>>> To anyone concerned: does this seem sensible? Is it actually totally
>>> impractical to assume that anything other than zlib is available ever?
>>> (I hope not).
>>
>> GCC currently supports zstd for it's streaming format, and what I know from
>> compressing distro packages, zstd is faster for decompressing with slightly
>> bigger compressed data.
> 
> Hm, bigger compressed data than *zlib*? That's rather surprising to me.
> Oh well.

sorry, no, a little bigger than xz.

> (Obviously, a given compression format is only worth implementing if it
> produces smaller output than zlib most of the time. This use case is not
> really optimizing for decompression speed.)
>