On 29.11.2010 14:41, Michael Biebl wrote: > On 29.11.2010 07:18, Guillem Jover wrote: > >> >> Could someone with ext4/btrfs/xfs/etc test w/ and w/o the attached patch >> against dpkg? > > I'm using ext4 (as already mentioned), my small benchmark is (re)installing > vim-runtime using dpkg -i Same test on an xfs partition 1.15.8.5: real 0m22.494s user 0m3.384s sys 0m1.312s 1.15.8.6: real 0m48.842s user 0m3.360s sys 0m1.696s 1.15.8.6 (force-unsafe-io): real 0m18.967s user 0m3.412s sys 0m1.144s 1.15.8.6 (w/ patch posix_fadvise): real 0m48.524s user 0m3.872s sys 0m1.892s Looks like POSIX_FADV_DONTNEED has no effect on xfs. -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth?
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