Messages in this thread | | | Date | Wed, 12 Sep 2012 18:01:14 +0200 | From | Zdenek Kaspar <> | Subject | Re: [PATCH] Kbuild: use normal compression settings for tar*-pkg |
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On 09/08/2012 09:47 PM, Andi Kleen wrote: > From: Andi Kleen <ak@linux.intel.com> > > 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> > --- > scripts/package/buildtar | 6 +++--- > 1 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/scripts/package/buildtar b/scripts/package/buildtar > index 8a7b155..632377f 100644 > --- a/scripts/package/buildtar > +++ b/scripts/package/buildtar > @@ -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" > ;; > *)
Maybe add new default compression options or rename actual ones to -hc- (high compression) if users dont like it much?
Z.
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