Date: Thu, 04 Jul 2013 18:57:32 +0300 From: Volodymyr Kostyrko <c.kworr@gmail.com> To: Dmitry Morozovsky <marck@rinet.ru> Cc: freebsd-fs@freebsd.org, avg@freebsd.org Subject: Re: ZFS default compression algo for contemporary FreeBSD versions Message-ID: <51D59B6C.5030600@gmail.com> In-Reply-To: <alpine.BSF.2.00.1307041950400.2446@woozle.rinet.ru> References: <alpine.BSF.2.00.1307041620420.2446@woozle.rinet.ru> <51D576E1.6030803@gmail.com> <alpine.BSF.2.00.1307041950400.2446@woozle.rinet.ru>
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04.07.2013 18:51, Dmitry Morozovsky wrote: > On Thu, 4 Jul 2013, Volodymyr Kostyrko wrote: > >> 04.07.2013 15:22, Dmitry Morozovsky wrote: >>> Collegues, >>> >>> is it sane to just set 'zfs compression=on dataset' to achieve best algo on >>> fresh FreeBSD systems (-current and/or stable/9)? >> >> No and this is not safe AFAIK. Default compression is still lzjb and >> bootloader can't boot oof datasets compressed with lzjb. However on stable/9 >> you can simply set zfs compression=lz4 pool and everything would work fine if >> you updated the boot loader. > > I did not intend to compress root/boot datasets (and there is no much sense in > this AFAICS); > > the second (and actually more important) my question is -- is lz4 in general > better than lzjb? Yes. Much better in terms of speed. -- Sphinx of black quartz, judge my vow.
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