On Wed, 8 Dec 2021, 17:13 Julian Andres Klode,
wrote:
> Hi all,
>
> some time ago, the default compressor for initramfs was changed
> from lz4 -9 to zstd -19. This caused significant problems:
>
> - it is very slow
> - it uses a lot of memory
>
> The former is a problem for everyone, the latter
On Tue, 7 Dec 2021 at 03:19, Lukas Märdian
wrote:
>
>
> On Sun, Dec 5, 2021 at 7:38 PM Jeremy Bicha wrote:
>
>> On Tue, Nov 30, 2021 at 10:22 PM Michael Hudson-Doyle
>> wrote:
>> > It turns out that ccache has been in main essentially forever, since
>> 2004 and there is no formal record of the
Firstly, many thanks for Julian for starting this thread; I've had far
too much fun delving back into some SQL+jupyter notebooks today while
gathering a bit more info on this...
If you just want to go see or play with the data (and possibly expand it
with some more samples; I'd love to see
Thanks for raising this discussion, Julian!
On Wed, Dec 08, 2021 at 06:12:43PM +0100, Julian Andres Klode wrote:
> ## Adaptive compression
> zstd also supports adaptive compression, compressing as hard as
> it can while not impacting I/O speed. So hardware with slow I/O
> like a Pi would
On Thu, 9 Dec 2021 at 10:02, Julian Andres Klode
wrote:
> On Thu, Dec 09, 2021 at 09:21:35AM +1300, Michael Hudson-Doyle wrote:
> > On Thu, 9 Dec 2021 at 08:52, Julian Andres Klode <
> julian.kl...@canonical.com>
> > wrote:
> >
> > > The most interesting solution would be to create the cpip
On Thu, Dec 09, 2021 at 09:21:35AM +1300, Michael Hudson-Doyle wrote:
> On Thu, 9 Dec 2021 at 08:52, Julian Andres Klode
> wrote:
>
> > The most interesting solution would be to create the cpip archive
> > dynamically by giving cpio a list of files over a pipe that we create
> > dynamically in
On Thu, 9 Dec 2021 at 08:52, Julian Andres Klode
wrote:
> The most interesting solution would be to create the cpip archive
> dynamically by giving cpio a list of files over a pipe that we create
> dynamically in the hooks as we copy files in, then pipe that to zstd
> --adapt; then it would all
On 12/8/21 09:12, Julian Andres Klode wrote:
Hi all,
some time ago, the default compressor for initramfs was changed
from lz4 -9 to zstd -19. This caused significant problems:
- it is very slow
- it uses a lot of memory
The former is a problem for everyone, the latter means that
zstd just
On Wed, Dec 08, 2021 at 09:51:44AM -0800, Heinrich Schuchardt wrote:
> The memory should only be one factor to be taken into account. The SiFive
> Unmatched and the RPi 4 boards both have 8 GiB but slow CPUs. It would be
> advisable to use a lower compression level on these.
The Pi 4 is limited
Hi all,
some time ago, the default compressor for initramfs was changed
from lz4 -9 to zstd -19. This caused significant problems:
- it is very slow
- it uses a lot of memory
The former is a problem for everyone, the latter means that
zstd just crashes on a Pi Zero.
This is an analysis of what
On Wed, Dec 08, 2021 at 05:29:19PM +0100, Sebastien Bacher wrote:
> Hey again,
>
> Le 08/12/2021 à 00:14, Steve Langasek a écrit :
> > I expect that with this option set, we will find much fewer problems with
> > entanglement of library transitions, and in turn I hope developers will be
> > less
Hey again,
Le 08/12/2021 à 00:14, Steve Langasek a écrit :
I expect that with this option set, we will find much fewer problems with
entanglement of library transitions, and in turn I hope developers will be
less frustrated by migration delays.
Right, I expect that to be the case. It's going to
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