As it's done for zstd compression, enable multithread compression for
xz to speed up module installation.
Signed-off-by: André Almeida <andrealmeid@xxxxxxxxxx>
---
On my setup xz is a bottleneck during module installation. Here are the
numbers to install it in a local directory, before and after this patch:
$ time make INSTALL_MOD_PATH=/home/tonyk/codes/.kernel_deploy/ modules_install -j16
Executed in 100.08 secs
$ time make INSTALL_MOD_PATH=/home/tonyk/codes/.kernel_deploy/ modules_install -j16
Executed in 28.60 secs
---
scripts/Makefile.modinst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index 4815a8e32227..28dcc523d2ee 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -99,7 +99,7 @@ endif
quiet_cmd_gzip = GZIP $@
cmd_gzip = $(KGZIP) -n -f $<
quiet_cmd_xz = XZ $@
- cmd_xz = $(XZ) --lzma2=dict=2MiB -f $<
+ cmd_xz = $(XZ) --lzma2=dict=2MiB -f -T0 $<
quiet_cmd_zstd = ZSTD $@
cmd_zstd = $(ZSTD) -T0 --rm -f -q $<
--
2.39.2
