| 1 |
-----BEGIN PGP SIGNED MESSAGE----- |
| 2 |
Hash: SHA1 |
| 3 |
|
| 4 |
On 09/27/2012 05:23 AM, Piotr Szymaniak wrote: |
| 5 |
> On Wed, Sep 26, 2012 at 01:43:27PM -0700, Matt Turner wrote: |
| 6 |
>> On Wed, Sep 26, 2012 at 1:30 PM, Michael Mol <mikemol@×××××.com> wrote: |
| 7 |
>>> A few months ago, I filed bug 423651 to ask that bzip2 on the install |
| 8 |
>>> media be replaced with |
| 9 |
>>> pbzip2. It was closed a short while later, telling me that it'd |
| 10 |
>>> involve changing what's kept in @system, and that had to be discussed |
| 11 |
>>> here, rather than in a bug report. |
| 12 |
>> |
| 13 |
>> If we're going to ship a parallel bzip2 implementation, it should be |
| 14 |
>> lbzip2 and not pbzip2. |
| 15 |
>> |
| 16 |
>> lbzip2 can decompress bz2 archives with multiple threads that haven't |
| 17 |
>> been compressed with lbzip2/pbzip2. |
| 18 |
> |
| 19 |
> Afair I'm using PORTAGE_BZIP2_COMMAND with lbzip2 and it works fine. |
| 20 |
> Also some time ago I've changed a bit the (famous?) stage4 backup |
| 21 |
> script from g-wiki to support parallel gz/bz2 implementations (simple |
| 22 |
> check if there pbzip2/lbzip2/foobar installed and if yes, use it instead |
| 23 |
> of normal gzip/bzip2). |
| 24 |
|
| 25 |
I've been testing PORTAGE_BZIP2_COMMAND=lbzip2 for the few weeks since |
| 26 |
this thread as well, and I have to say it's been great. |
| 27 |
> |
| 28 |
> Maybe portage should be like my stage4 mod? If it finds some parallel |
| 29 |
> (de)compressor it should use it, if not fallback to standard gzip/bzip2? |
| 30 |
|
| 31 |
The releng team has begun using lbzip2 for decompressing things as much |
| 32 |
as possible for speeding up catalyst builds, and speaking only for |
| 33 |
myself I think it's been useful. I spoke to zmedico about replacing the |
| 34 |
default portage decompresser and he suggested far more use could be |
| 35 |
attained by simply creating an eselect-bzip2 (possibly defaulting to |
| 36 |
lbzip2 as this thread seemed to agree). I'm confident no one would |
| 37 |
attempt to block my adding eselect-bzip2 to the tree (aside from my poor |
| 38 |
coding skills), but would anyone be interested in blocking using lbzip2 |
| 39 |
by default? It seems pretty safe and I've done dozens of full system |
| 40 |
builds etc. |
| 41 |
|
| 42 |
Thanks, |
| 43 |
Zero_Chaos |
| 44 |
> |
| 45 |
> |
| 46 |
> Piotr Szymaniak. |
| 47 |
> |
| 48 |
|
| 49 |
-----BEGIN PGP SIGNATURE----- |
| 50 |
Version: GnuPG v2.0.19 (GNU/Linux) |
| 51 |
Comment: Using GnuPG with Mozilla - http://www.enigmail.net/ |
| 52 |
|
| 53 |
iQIcBAEBAgAGBQJQjo79AAoJEKXdFCfdEflKQNQQAIur3Mx4eD6kVv3US6kDkKpn |
| 54 |
Z8aHyZqWIOws9VqcPCJUb1c1bn8aj2QTjL63obh//rJby1Qd1P3X3OA9hKfaiyiJ |
| 55 |
hbgWRu5RkMSNPIdXhaslD3h/kL78BPr9eVz9O3R/TMp01puz4su0j1JVOtAT5Ny2 |
| 56 |
qAVof+H6RC5aCP2pKjIkvDq9vma/jd9QT98rM3UIw3BorBpkl0vTTa+sLtGA+U6p |
| 57 |
mBkYZJFUUnkW3AtNC1ucPvQS9a7NwOxH5EDGEy4QeSJh9nvQZ8zCFivNtr4SUS6A |
| 58 |
SGV0j/PB0Uqf42y1NOBfFSEQoQGT3aIlZzkbGdJKf6/jIdGPHhxWt3npQ6U6gOg9 |
| 59 |
TA/8zCJkJk0GZKAIq+K/y8STczeuIJ2hgrHUup4/I6CYwI66eBRiqnayNEmah7Cy |
| 60 |
rpqR7xwqh+F2JrjljNYfE9qVQKwqhLU5MsOONlqRS+FPw+SuxxbJM6BiLCk4s0Qz |
| 61 |
GPs5PXTz92MzzQ18XUuMq53bi9IaEmJJa8E83IBm3PD4zq67KsiWd2YxQo/JYX4p |
| 62 |
ZTBayLabbY6PRwMVx0k9jKG7aOOKFZ5t2k5BmZDv6JBD2Sww9q6+xUPoTDwsZPgZ |
| 63 |
pVv2m3AwaOXbGpvMrpqmzOTxbovUALp9WhdyTxlR5NmbTeXIuaKW/lQTU0cl/LKP |
| 64 |
ACg4IADjv3hQz7gfsHAP |
| 65 |
=hCz9 |
| 66 |
-----END PGP SIGNATURE----- |
Archives