nati_x86_64_defconfig: switch kernel compression to xz

Gratian Crisan · gratian · commit 31bc38ee8ba8 · 2026-01-22T10:29:02.000-06:00
Switch the kernel compression algorithm to xz from previous gzip
default.

In testing, cRIO-903x and cRIO-904x show a 2.5MB (27.2%) kernel image
size decrease.

This also improves the boot time by
   - 4.8 seconds (12.8%) on cRIO-903x
   - 2.9 seconds (10%) on cRIO-9043

Signed-off-by: Gratian Crisan &lt;gratian.crisan@emerson.com&gt;
diff --git a/arch/x86/configs/nati_x86_64_defconfig b/arch/x86/configs/nati_x86_64_defconfig
@@ -1,3 +1,4 @@
+CONFIG_KERNEL_XZ=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_AUDIT=y

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+CONFIG_KERNEL_XZ=y`
`1`	`2`	`CONFIG_SYSVIPC=y`
`2`	`3`	`CONFIG_POSIX_MQUEUE=y`
`3`	`4`	`CONFIG_AUDIT=y`