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| From: | Ulrich Mueller <ulm@g.o> | ||
|---|---|---|---|
| To: | "Michał Górny" <mgorny@g.o> | ||
| Cc: | gentoo-dev@l.g.o, dist-kernel@g.o, kernel@g.o, Sam James <sam@g.o> | ||
| Subject: | Re: [gentoo-dev] [PATCH 6/8] kernel-build.eclass: compress xz/zstd in parallel | ||
| Date: | Wed, 12 Oct 2022 08:39:48 | ||
| Message-Id: | utu49tozb@gentoo.org | ||
| In Reply to: | Re: [gentoo-dev] [PATCH 6/8] kernel-build.eclass: compress xz/zstd in parallel by "Michał Górny" |
||
| 1 | >>>>> On Wed, 12 Oct 2022, Michał Górny wrote: |
| 2 | |
| 3 | > (I mean, most of these files won't even use parallel compression |
| 4 | > because they're too small). |
| 5 | |
| 6 | xz(1) says about the block size: "The default size is three times the |
| 7 | LZMA2 dictionary size or 1 MiB, whichever is more." The default (-6) |
| 8 | dictionary size is 8 MiB. |
| 9 | |
| 10 | So IIUC only files larger than 24 MiB would be compressed in parallel? |
| 11 | |
| 12 | Ulrich |
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