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Kbuild: use normal compression settings for tar*-pkg

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For large kernel configurations (like a distribution kernel)
targz-pkg takes a quite long time to just do the compression.
I clocked it at 15+mins for a SUSE kernel like config on a fast
system.  And tarxz and bzip2 are even slower.

The main reason is that the script that is doing the taring sets
the highest compression level (-9).  When I change it to just
use the defaults the gzip time for the same kernel goes down
to ~3 mins. I haven't tested xz and bzip, but I expect those
to be much faster too.

I'm not willing to wait that long for a small compression
gain. So just change the script to use the defaults.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Andi Kleen 2012-09-08 12:47:59 -07:00 committed by Michal Marek
parent ef591a5506
commit b589c8ae09
1 changed files with 3 additions and 3 deletions
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6
scripts/package/buildtar
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@ -28,15 +28,15 @@ case "${1}" in
file_ext=""
;;
targz-pkg)
compress="gzip -c9"
compress="gzip"
file_ext=".gz"
;;
tarbz2-pkg)
compress="bzip2 -c9"
compress="bzip2"
file_ext=".bz2"
;;
tarxz-pkg)
compress="xz -c9"
compress="xz"
file_ext=".xz"
;;
*)