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Re: Parallel downloads
From: |
Leo Famulari |
Subject: |
Re: Parallel downloads |
Date: |
Tue, 12 Nov 2019 12:44:42 -0500 |
User-agent: |
Mutt/1.12.2 (2019-09-21) |
On Sat, Nov 09, 2019 at 06:40:56PM +0100, Ludovic Courtès wrote:
> Like I wrote, it’s not that simple (we’d first need the daemon to
> distinguish substitution jobs from other jobs, but note that there are
> also “downloads” that are actually derivation builds), and it’s not
> clear to me that it’s overall beneficial anyway: it’s not supposed to be
> faster to download 10 things in parallel from ci.guix.gnu.org, than to
> download them sequentially.
Parallel downloading is not faster in terms of overall transfer rate
from ci.guix.gnu.org.
However, installing things with Guix involves downloading a lot of very
small files like derivations, and Guix spends a lot of time initiating
these downloads.
For example, I can download things at 100 megabits, but when Guix needs
to sequentially download 50 10-kilobyte files, it may take an entire
minute.
So there is a huge speedup with parallel downloading.
- Re: Parallel downloads, (continued)
- Re: Parallel downloads, Pierre Neidhardt, 2019/11/03
- Re: Parallel downloads, Ludovic Courtès, 2019/11/06
- Re: Parallel downloads, Pierre Neidhardt, 2019/11/06
- Re: Parallel downloads, Ludovic Courtès, 2019/11/09
- Re: Parallel downloads, Pierre Neidhardt, 2019/11/10
- Re: Parallel downloads, Ludovic Courtès, 2019/11/12
- Re: Parallel downloads, John Soo, 2019/11/12
- Re: Parallel downloads, zimoun, 2019/11/12
- Re: Parallel downloads, Efraim Flashner, 2019/11/13
- Re: Parallel downloads, zimoun, 2019/11/13
- Re: Parallel downloads,
Leo Famulari <=
- Re: Parallel downloads, Ludovic Courtès, 2019/11/17
- Re: Parallel downloads, Mark H Weaver, 2019/11/13
- Re: Parallel downloads, Pierre Neidhardt, 2019/11/13
- Re: Parallel downloads, Leo Famulari, 2019/11/13
- Re: Parallel downloads, Pierre Neidhardt, 2019/11/13
- Re: Parallel downloads, Ludovic Courtès, 2019/11/17
- Re: Parallel downloads, Bengt Richter, 2019/11/06