Re: Trying to get Windows building CRM114

On Fri, Mar 06, 2009 at 01:34:57PM +0200, Jaakko Hyv?tti wrote:
> On Fri, 6 Mar 2009, Paolo wrote:
> >well, usually 2 times and up to 3 times better compressin than stock gzip.
> >Quite appreciable.
> 
> 2-3 times better than 'gzip -9' ? I do not believe you..
> 
> 7zip compression ratio improvement in Linux kernel source:
> 47 % better than gzip -9
> 16 % better than bzip2


!find /usr/bin /usr/lib* /lib -type f|\
!while read f;do
!  { gzip -c -9 "$f" > /tmp/x.gz
!    7z a /tmp/x.7z "$f"
!  } &>/dev/null
!  gz=`wc -c < /tmp/x.gz`
!  fz=`wc -c < "$f"`
!  sz=`wc -c < /tmp/x.7z`
!  echo "scale=2; print \"$f: [\",$fz,\"] \",$gz/$sz,\"\n\""|bc -l
!  rm -f /tmp/x.?z
!done | egrep '([2-9]\.[0-9]+)$' | sort -r -n -k2,2

/usr/lib/bjlib/cnc160.dat: [2665168] 7.35
/usr/lib/libHalf.so.2.0.2: [268452] 5.44
/usr/lib/locale/locale-archive: [1687008] 4.75
/usr/lib/jvm/java-1.5.0-sun-1.5.0.14/jre/lib/charsets.jar: [8840474] 4.53
/usr/lib/jre1.5.0_02/lib/charsets.jar: [8511074] 4.64
/usr/lib/perl5/Class/MethodMaker/hash.pm: [4189484] 3.87
/usr/lib/perl5/Class/MethodMaker/array.pm: [3941315] 3.21
/usr/lib/jvm/java-6-sun-1.6.0.07/jre/lib/charsets.jar: [6698618] 3.49
/usr/lib/tcl8.4/encoding/jis0212.enc: [70974] 2.21
/usr/lib/tcl8.4/encoding/cp949.enc: [130423] 2.06
/usr/lib/tcl8.4/encoding/cp936.enc: [132509] 2.11
/usr/lib/tcl8.3/encoding/jis0212.enc: [70974] 2.21
/usr/lib/tcl8.3/encoding/cp949.enc: [130423] 2.06
/usr/lib/tcl8.3/encoding/cp936.enc: [132509] 2.11
/usr/lib/perl5/Class/MethodMaker/scalar.pm: [2277116] 2.26
/usr/lib/perl/5.8.8/auto/Encode/TW/TW.so: [1020768] 2.49
/usr/lib/perl/5.8.8/auto/Encode/KR/KR.so: [1143508] 2.25
/usr/lib/perl/5.8.8/auto/Encode/JP/JP.so: [1253380] 2.16
/usr/lib/perl/5.8.8/auto/Encode/CN/CN.so: [1019692] 2.21
/usr/lib/openoffice/program/liblocaledata_euro.so: [885788] 2.01
/usr/lib/libvte4/interpret: [483504] 2.41
/usr/lib/libumfpack.so.1.2: [663896] 2.33
/usr/lib/libicudata.so.36.0: [10152408] 2.09
/usr/lib/libbrcompij2.so.1.0.2: [725444] 2.13
...


here you are, sir ;)

beside compr-algo, guess it's block size for dictionary that matters quite
a bit.

-- 
 paolo
 
 GPG/PGP id:0x3A47DE45  - B5F9 AAA0 44BD 2B63 81E0  971F C6C0 0B87 3A47 DE45

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