Re: Compression of full-page-writes - Mailing list pgsql-hackers

(2013/10/15 13:33), Amit Kapila wrote:
> Snappy is good mainly for un-compressible data, see the link below:
> http://www.postgresql.org/message-id/CAAZKuFZCOCHsswQM60ioDO_hk12tA7OG3YcJA8v=4YebMOA-wA@mail.gmail.com
This result was gotten in ARM architecture, it is not general CPU.
Please see detail document.
http://www.reddit.com/r/programming/comments/1aim6s/lz4_extremely_fast_compression_algorithm/c8y0ew9

I found compression algorithm test in HBase. I don't read detail, but it 
indicates snnapy algorithm gets best performance.
http://blog.erdemagaoglu.com/post/4605524309/lzo-vs-snappy-vs-lzf-vs-zlib-a-comparison-of

In fact, most of modern NoSQL storages use snappy. Because it has good 
performance and good licence(BSD license).

> I think it is bit difficult to prove that any one algorithm is best
> for all kind of loads.
I think it is necessary to make best efforts in community than I do the best 
choice with strict test.

Regards,
-- 
Mitsumasa KONDO
NTT Open Source Software Center