Date: Wed, 1 Jun 2005 11:16:28 -0400 From: John Baldwin <jhb@FreeBSD.org> To: Maxim.Sobolev@portaone.com Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org, obrien@FreeBSD.org Subject: Re: cvs commit: src/sys/boot/i386/loader Makefile Message-ID: <200506011116.29914.jhb@FreeBSD.org> In-Reply-To: <429DCAA3.8020303@portaone.com> References: <200505312116.j4VLGpYw072934@repoman.freebsd.org> <20050601142848.GA7964@dragon.NUXI.org> <429DCAA3.8020303@portaone.com>
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On Wednesday 01 June 2005 10:48 am, Maxim Sobolev wrote: > David O'Brien wrote: > > On Wed, Jun 01, 2005 at 12:28:08AM +0300, Maxim Sobolev wrote: > >>David E. O'Brien wrote: > >>>obrien 2005-05-31 21:16:51 UTC > >>> > >>> FreeBSD src repository > >>> > >>> Modified files: > >>> sys/boot/i386/loader Makefile > >>> Log: > >>> Put bzip2 support on equal footing with gzip support. > >>> Enable bzip2 support by default, set LOADER_NO_BZIP2_SUPPORT to disable > >>> it. > >> > >>This only increases the size of loader without any good reason. Please > >>stop making nonsense commits. > > > > And having gzip support on by default only increases the loader without > > any good reason. We provide a feature rich environment. The loader > > isn't at the brink of its size limit like boot0 is. I put bzip2 on par > > No, it is, since currently it's still limited to 640KB of memory both > for data and for text on i386 and possibly on amd64. For that reason you > can't decompress bzip2-compressed filesystems compressed with block size > higher than 100k, which is the smalles block size possible with bzip2. > Still it provides noticeably better compression than libz. > > Decompression requires about 100k + ( 2.5 x block size ), that is 350k. > Given that loader's text is currently 200-250k and the fact that it > needs some heap for other functionality even 20-30k can really matter. > Actually I am not sure if you can do bzip2 decompression w/o turning > forth and gzip support off on i386 now. Hmm, given this, does anyone actually use bzip2fs in the loader now? I guess it might be ok for non-i386, but perhaps i386 should not even try to use it? -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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