47 lines
1.3 KiB
Diff
47 lines
1.3 KiB
Diff
From 59204d36985de5ba2444d5f3e0d50a119287ec51 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
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Date: Sat, 25 Jan 2020 12:04:32 +0100
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Subject: [PATCH] mkinitfs: add optional support for pigz
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pigz(1) is a parallel gzip implementation. As such, it significantly
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faster than gzip(1). This patch uses pigz(1) instead of gzip(1),
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if it is installed, otherwise it just falls back to gzip(1). This is
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similar to the current pigz support in abuild.
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Without this patch:
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$ time mkinitfs
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==> initramfs: creating /boot/initramfs-lts
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real 0m 38.19s
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user 0m 35.47s
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sys 0m 0.49s
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With this patch applied and pigz installed:
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==> initramfs: creating /boot/initramfs-lts
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real 0m 13.24s
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user 0m 38.30s
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sys 0m 0.56s
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This change was discussed on IRC with _ikke_ and mps.
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---
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mkinitfs.in | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/mkinitfs.in b/mkinitfs.in
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index 9bd95f9..9676fce 100755
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--- a/mkinitfs.in
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+++ b/mkinitfs.in
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@@ -278,7 +278,7 @@ if [ -z "$list_sources" ] && [ -z "$quiet" ]; then
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fi
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case "$initfscomp" in
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- gzip) comp="gzip -9" ;;
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+ gzip) comp="$(command -v pigz 2>/dev/null || echo gzip) -9" ;;
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xz) cmd_exists xz; comp="xz -C crc32 -T 0" ;;
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*) echo "Initramfs compression \"$initfscomp\" not supported!"; exit 1 ;;
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esac
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--
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2.26.2
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