mkinitcpio: Lower zstd compression level to 15

After extensive testing, lowering the compression level to 15 seems to achieve
a compression time on the ball park of gzip, while also having ~10% savings on
top of it.

1 files changed, 1 insertions, 1 deletions

diff --git a/mkinitcpio b/mkinitcpio
index 352ee4e..9e875b7 100755
--- a/mkinitcpio
+++ b/mkinitcpio
@@ -212,7 +212,7 @@ build_image() {
             COMPRESSION_OPTIONS=('-l' "${COMPRESSION_OPTIONS[@]}")
             ;;
         zstd)
-            COMPRESSION_OPTIONS=('-19' '-T0' "${COMPRESSION_OPTIONS[@]}")
+            COMPRESSION_OPTIONS=('-15' '-T0' "${COMPRESSION_OPTIONS[@]}")
             ;;
     esac