Messages in this thread Patch in this message | | | From | André Almeida <> | Subject | [PATCH] kbuild: modinst: Enable multithread xz compression | Date | Wed, 22 Feb 2023 21:16:07 -0300 |
| |
As it's done for zstd compression, enable multithread compression for xz to speed up module installation.
Signed-off-by: André Almeida <andrealmeid@igalia.com> ---
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
| |