Date: Sat, 22 Apr 2017 17:31:54 -0600 From: Ian Lepore <ian@freebsd.org> To: Baptiste Daroussin <bapt@freebsd.org> Cc: rgrimes@freebsd.org, src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r316978 - in head: contrib/zstd etc/mtree lib lib/libzstd share/mk usr.bin usr.bin/zstd Message-ID: <1492903914.56859.31.camel@freebsd.org> In-Reply-To: <20170422232707.uds2qkumtxm4ex54@ivaldir.net> References: <201704152005.v3FK5M2j002459@repo.freebsd.org> <201704152337.v3FNb2m1014053@pdx.rh.CN85.dnsmgr.net> <20170416073551.557czdcksdmmuz24@ivaldir.net> <1492898728.56859.13.camel@freebsd.org> <20170422232707.uds2qkumtxm4ex54@ivaldir.net>
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On Sun, 2017-04-23 at 01:27 +0200, Baptiste Daroussin wrote: > On Sat, Apr 22, 2017 at 04:05:28PM -0600, Ian Lepore wrote: > > > > On Sun, 2017-04-16 at 09:35 +0200, Baptiste Daroussin wrote: > > > > > > On Sat, Apr 15, 2017 at 04:37:02PM -0700, Rodney W. Grimes wrote: > > > > > > > > > > > > And we need this in base for what great purpose??? > > > > > > > zstandard is the successor to lz4, there are attempts to > > > integrate > > > zstandard in > > > ZFS, Allan Jude is working on that, I am working on integrating > > > in > > > libstand to > > > allow to boot a kernel compressed with zstandard or a mfsroot > > > with > > > zstandard, > > > which would benefit lots of pxe users. > > > > > > I have also added it to newsyslog(8) so users can benefit > > > zstandard > > > compression > > > for the log files, which will consume less CPUs for greater > > > compression that > > > bzip2. On low ended boxes with low storage this is actually very > > > useful as well. > > > > > > I haven't checked yet the performances on my armv6 boxes, but on > > > the > > > low ended > > > recent atom laptops I can tell this is already very useful. > > > > > > Bapt > > Does it also need to be added to the toolkit in /rescue? The other > > major compression tools in base are there. > I'm not sure it is worth it, is it? > > Bapt I'm not sure what "worth it" means. The other compression tools are in there, I assume because there are recovery scenarios that require them. If this new compression gets used in the base system, then perhaps it also would need to be in there. For example, if logs are compressed this new way, and you get into a recovery situation, then you might need to view the logs to figure out how to recover the system. -- Ian
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