Bug#1062968: initramfs-tools-core: Use zstdmt instead of zstd by default

From	Tollef Fog Heen <tfheen@err.no>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1062968: initramfs-tools-core: Use zstdmt instead of zstd by default
Date	2024-02-04 09:20 +0100
Message-ID	<I3FTj-7MM1-7@gated-at.bofh.it> (permalink)
Organization	Private

Cross-posted to 2 groups.

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Package: initramfs-tools-core
Version: 0.142
Severity: wishlist

It would be nice if initramfs-tools-core used zstdmt (multi-threaded)
instead of plain zstd when creating the initramfs.  On my system, that
saves about 15% of the time spent building the initramfs.

The following change seems sufficient:

--- /usr/sbin/mkinitramfs~	2022-07-12 23:51:34.000000000 +0200
+++ /usr/sbin/mkinitramfs	2024-02-04 09:09:07.614462279 +0100
@@ -227,7 +227,7 @@
 	fi
 	;;
 lz4)	compress="lz4 ${compresslevel} -l" ;;
-zstd)	compress="zstd -q ${compresslevel}"
+zstd)	compress="zstdmt -q ${compresslevel}"
 	# If we're not doing a reproducible build, enable multithreading
 	test -z "${SOURCE_DATE_EPOCH}" && compress="$compress -T0"
 	;;

-- 
Tollef Fog Heen
UNIX is user friendly, it's just picky about who its friends are

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Bug#1062968: initramfs-tools-core: Use zstdmt instead of zstd by default Tollef Fog Heen <tfheen@err.no> - 2024-02-04 09:20 +0100

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