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From: Pjotr Prins <pjotr.public12@thebird.nl>
Subject: Re: Hacks to install Guix packages without root
Date: Mon, 6 Nov 2017 17:13:03 +0100
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To: Dave Love <fx@gnu.org>
Cc: guix-devel@gnu.org

On Mon, Nov 06, 2017 at 03:03:30PM +0000, Dave Love wrote:
> > Best to try for the specific use case. For bioinformatics it won't
> > work.
> 
> This may be a bit off-topic, but perhaps it helps in packaging:  I don't
> know whether that refers to using PRoot or fakechroot, but anyway,
> what specifically is the problem in bioinformatics?

Large data sets. Many files.

> By the way, I measured compressed tar/untar under PRoot on CentOS 6 of
> the CentOS root image.  It's around a factor of two slower than native
> on untar and about 40% slower on tar.

Exactly. Too slow when IO is already the bottleneck.

> > Docker is not going away, mind. We may end up putting Conda and Guix
> > in Docker containers ;)
> 
> Does that mean containers or images?  (The way the terminology has gone
> is rather unhelpful...)  

Containers.

> Docker is a nightmare for use with HPC-type
> resource managers, but you can run from OCI-type images more sanely, of
> course.

There is no love between Docker and me ;)

> I probably basically agree!

Probably :)


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