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[bug#33643] [PATCH] gnu-build-system: Enable xz to decompress in paralle
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From: |
Leo Famulari |
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Subject: |
[bug#33643] [PATCH] gnu-build-system: Enable xz to decompress in parallel. |
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Date: |
Thu, 6 Dec 2018 16:06:53 -0500 |
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User-agent: |
Mutt/1.11.0 (2018-11-25) |
On Thu, Dec 06, 2018 at 07:38:21PM +0000, Christopher Baines wrote:
> So, if -T was used to compress the data, then it sounds like it'll work
> to decompress it. I guess this adds a little more uncertainty to the
> benefit of this change, as the impact is dependent on the way the source
> data is compressed.
Right. When parallel decompression is implemented, I think we should
enable it in order to get some benefit from upstream tarballs that may
have been created with multi-threaded compression.
However, we probably won't be able to use the parallel compression
within Guix because it is apparently not deterministic:
<https://bugs.gnu.org/31015>
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