Gentoo Archives: gentoo-dev

From: "Michał Górny" <mgorny@g.o>
To: gentoo-dev@l.g.o
Cc: vivo75@×××××.com
Subject: Re: [gentoo-dev] RFC: Hosting daily gx86 squashfs images and deltas
Date: Mon, 27 Jan 2014 15:54:03
Message-Id: 20140127165209.699b19b3@pomiot.lan
In Reply to: Re: [gentoo-dev] RFC: Hosting daily gx86 squashfs images and deltas by "vivo75@gmail.com"
1 Dnia 2014-01-27, o godz. 14:53:34
2 "vivo75@×××××.com" <vivo75@×××××.com> napisał(a):
3
4 > On 01/27/14 08:35, Steev Klimaszewski wrote:
5 > > On Sun, 2014-01-26 at 21:00 +0100, Michał Górny wrote:
6 > >> Hi again.
7 > >>
8 > >> If someone is interested in the results of my tests and benchmarks,
9 > >> I've uploaded the initial version of my article on the topic in our
10 > >> dev-space.
11 > >>
12 > >> http://dev.gentoo.org/~mgorny/tmp/squashfs-deltas.pdf
13 > >>
14 > >> I am terribly busy with the uni right now so it will take some time
15 > >> before I continue working on it. I will try to provide a final
16 > >> specification for the first attempt at the idea and ask infra if they
17 > >> are ready to sacrifice the hardware for it.
18 > >>
19 > >> Further possible improvements:
20 > >>
21 > >> 1. switch to LZ4 (stronger compression, even faster) -- will require
22 > >> a newer kernel (3.14?),
23 > >>
24 > it should be in kernel 3.11 "windows for workgroups" release (check anyway)
25
26 That's just the LZ4 library code. We additionally need the SquashFS
27 support code. It has been introduced in squashfs-tools lately
28 (4.2_p20140119 has it, though disabled by ebuild) and I don't see it
29 in the kernel's master branch yet.
30
31 --
32 Best regards,
33 Michał Górny

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