4911a10a4e
XZ compresses significantly better than bzip2. Here are the compression ratios and execution times (using 4 cores in parallel) on my /var/run/current-system (3.1 GiB): bzip2: total compressed size 849.56 MiB, 30.8% [2m08] xz -6: total compressed size 641.84 MiB, 23.4% [6m53] xz -7: total compressed size 621.82 MiB, 22.6% [7m19] xz -8: total compressed size 599.33 MiB, 21.8% [7m18] xz -9: total compressed size 588.18 MiB, 21.4% [7m40] Note that compression takes much longer. More importantly, however, decompression is much faster: bzip2: 1m47.274s xz -6: 0m55.446s xz -7: 0m54.119s xz -8: 0m52.388s xz -9: 0m51.842s The only downside to using -9 is that decompression takes a fair amount (~65 MB) of memory.
37 lines
1.2 KiB
Makefile
37 lines
1.2 KiB
Makefile
%: %.in Makefile
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sed \
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-e "s^@abs_top_srcdir\@^$(abs_top_srcdir)^g" \
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-e "s^@abs_top_builddir\@^$(abs_top_builddir)^g" \
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-e "s^@extra1\@^$(extra1)^g" \
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-e "s^@prefix\@^$(prefix)^g" \
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-e "s^@bindir\@^$(bindir)^g" \
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-e "s^@datadir\@^$(datadir)^g" \
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-e "s^@sysconfdir\@^$(sysconfdir)^g" \
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-e "s^@localstatedir\@^$(localstatedir)^g" \
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-e "s^@datadir\@^$(datadir)^g" \
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-e "s^@libdir\@^$(libdir)^g" \
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-e "s^@libexecdir\@^$(libexecdir)^g" \
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-e "s^@storedir\@^$(storedir)^g" \
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-e "s^@system\@^$(system)^g" \
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-e "s^@shell\@^$(bash)^g" \
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-e "s^@curl\@^$(curl)^g" \
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-e "s^@bzip2\@^$(bzip2)^g" \
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-e "s^@xz\@^$(xz)^g" \
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-e "s^@perl\@^$(perl)^g" \
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-e "s^@perlFlags\@^$(perlFlags)^g" \
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-e "s^@coreutils\@^$(coreutils)^g" \
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-e "s^@sed\@^$(sed)^g" \
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-e "s^@tar\@^$(tar)^g" \
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-e "s^@gzip\@^$(gzip)^g" \
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-e "s^@pv\@^$(pv)^g" \
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-e "s^@tr\@^$(tr)^g" \
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-e "s^@dot\@^$(dot)^g" \
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-e "s^@xmllint\@^$(xmllint)^g" \
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-e "s^@xmlflags\@^$(xmlflags)^g" \
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-e "s^@xsltproc\@^$(xsltproc)^g" \
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-e "s^@sqlite_bin\@^$(sqlite_bin)^g" \
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-e "s^@version\@^$(VERSION)^g" \
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-e "s^@perlbindings\@^$(perlbindings)^g" \
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-e "s^@testPath\@^$(coreutils):$$(dirname $$(type -p expr))^g" \
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< $< > $@ || rm $@
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if test -x $<; then chmod +x $@; fi
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