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Date:      Thu, 04 Jul 2013 23:27:37 +0300
From:      Volodymyr Kostyrko <c.kworr@gmail.com>
To:        Andriy Gapon <avg@FreeBSD.org>
Cc:        freebsd-fs@FreeBSD.org, Dmitry Morozovsky <marck@rinet.ru>
Subject:   Re: ZFS default compression algo for contemporary FreeBSD versions
Message-ID:  <51D5DAB9.4070507@gmail.com>
In-Reply-To: <51D59C88.9060403@FreeBSD.org>
References:  <alpine.BSF.2.00.1307041620420.2446@woozle.rinet.ru> <51D576E1.6030803@gmail.com> <alpine.BSF.2.00.1307041950400.2446@woozle.rinet.ru> <51D59B6C.5030600@gmail.com> <51D59C88.9060403@FreeBSD.org>

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04.07.2013 19:02, Andriy Gapon wrote:
> on 04/07/2013 18:57 Volodymyr Kostyrko said the following:
>> Yes. Much better in terms of speed.
>
> And compression too.

Can't really say.

When the code first appeared in stable I moved two of my machines 
(desktops) to LZ4 recreating each dataset. To my surprise gain at 
transition from lzjb was fairly minimal and sometimes LZ4 even loses to 
lzjb in compression size. However better compression/decompression speed 
and moreover earlier takeoff when data is incompressible clearly makes 
lz4 a winner.

-- 
Sphinx of black quartz judge my vow.



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