-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 09/27/2012 05:23 AM, Piotr Szymaniak wrote: > On Wed, Sep 26, 2012 at 01:43:27PM -0700, Matt Turner wrote: >> On Wed, Sep 26, 2012 at 1:30 PM, Michael Mol <mike...@gmail.com> wrote: >>> A few months ago, I filed bug 423651 to ask that bzip2 on the install >>> media be replaced with >>> pbzip2. It was closed a short while later, telling me that it'd >>> involve changing what's kept in @system, and that had to be discussed >>> here, rather than in a bug report. >> >> If we're going to ship a parallel bzip2 implementation, it should be >> lbzip2 and not pbzip2. >> >> lbzip2 can decompress bz2 archives with multiple threads that haven't >> been compressed with lbzip2/pbzip2. > > Afair I'm using PORTAGE_BZIP2_COMMAND with lbzip2 and it works fine. > Also some time ago I've changed a bit the (famous?) stage4 backup > script from g-wiki to support parallel gz/bz2 implementations (simple > check if there pbzip2/lbzip2/foobar installed and if yes, use it instead > of normal gzip/bzip2).
I've been testing PORTAGE_BZIP2_COMMAND=lbzip2 for the few weeks since this thread as well, and I have to say it's been great. > > Maybe portage should be like my stage4 mod? If it finds some parallel > (de)compressor it should use it, if not fallback to standard gzip/bzip2? The releng team has begun using lbzip2 for decompressing things as much as possible for speeding up catalyst builds, and speaking only for myself I think it's been useful. I spoke to zmedico about replacing the default portage decompresser and he suggested far more use could be attained by simply creating an eselect-bzip2 (possibly defaulting to lbzip2 as this thread seemed to agree). I'm confident no one would attempt to block my adding eselect-bzip2 to the tree (aside from my poor coding skills), but would anyone be interested in blocking using lbzip2 by default? It seems pretty safe and I've done dozens of full system builds etc. Thanks, Zero_Chaos > > > Piotr Szymaniak. > -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://www.enigmail.net/ iQIcBAEBAgAGBQJQjo79AAoJEKXdFCfdEflKQNQQAIur3Mx4eD6kVv3US6kDkKpn Z8aHyZqWIOws9VqcPCJUb1c1bn8aj2QTjL63obh//rJby1Qd1P3X3OA9hKfaiyiJ hbgWRu5RkMSNPIdXhaslD3h/kL78BPr9eVz9O3R/TMp01puz4su0j1JVOtAT5Ny2 qAVof+H6RC5aCP2pKjIkvDq9vma/jd9QT98rM3UIw3BorBpkl0vTTa+sLtGA+U6p mBkYZJFUUnkW3AtNC1ucPvQS9a7NwOxH5EDGEy4QeSJh9nvQZ8zCFivNtr4SUS6A SGV0j/PB0Uqf42y1NOBfFSEQoQGT3aIlZzkbGdJKf6/jIdGPHhxWt3npQ6U6gOg9 TA/8zCJkJk0GZKAIq+K/y8STczeuIJ2hgrHUup4/I6CYwI66eBRiqnayNEmah7Cy rpqR7xwqh+F2JrjljNYfE9qVQKwqhLU5MsOONlqRS+FPw+SuxxbJM6BiLCk4s0Qz GPs5PXTz92MzzQ18XUuMq53bi9IaEmJJa8E83IBm3PD4zq67KsiWd2YxQo/JYX4p ZTBayLabbY6PRwMVx0k9jKG7aOOKFZ5t2k5BmZDv6JBD2Sww9q6+xUPoTDwsZPgZ pVv2m3AwaOXbGpvMrpqmzOTxbovUALp9WhdyTxlR5NmbTeXIuaKW/lQTU0cl/LKP ACg4IADjv3hQz7gfsHAP =hCz9 -----END PGP SIGNATURE-----
