ckolivas/lrzip
1
0
Fork 0
mirror of https://github.com/ckolivas/lrzip.git synced 2025-12-06 07:12:00 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

Update benchmarks.

Browse source
This commit is contained in:
Con Kolivas 2011-02-22 20:26:55 +11:00
parent 011344753a
commit 0f1d447541
1 changed files with 10 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
doc/README.benchmarks
View file

@ -94,7 +94,7 @@ system and some basic working software on it. The default options on the
10GB Virtual image:
These benchmarks were done on the quad core with version 0.550
These benchmarks were done on the quad core with version 0.561
Compression Size Percentage Compress Time Decompress Time
None 10737418240 100.0
@ -102,11 +102,11 @@ gzip 2772899756 25.8 05m47s 2m46s
bzip2 2704781700 25.2 16m15s 6m19s
xz 2272322208 21.2 50m58s 3m52s
7z 2242897134 20.9 26m36s 5m41s
lrzip 1372218189 12.8 11m03s 3m43s
lrzip -M 1079682231 10.2 09m30s 3m02s
lrzip -l 1831906483 17.1 05m38s 3m05s
lrzip -lM 1414958844 13.2 05m24s 2m52s
lrzip -zM 1066902006 9.9 71m20s 72m0s
lrzip 1372218189 12.8 10m23s 2m53s
lrzip -U 1095735108 10.2 08m44s 2m45s
lrzip -l 1831894161 17.1 04m53s 2m37s
lrzip -lU 1414959433 13.2 04m48s 2m38s
lrzip -zU 1067075961 9.9 69m36s 69m35s
At this end of the spectrum things really start to heat up. The compression
@ -118,9 +118,10 @@ less than half the size.
What appears to be a big disappointment is actually zpaq here which takes more
than 6 times longer than lzma for a measly .3% improvement. The reason is that
most of the advantage here is achieved by the rzip first stage since there's a
lot of redundant space over huge distances on a virtual image. The -M option
lot of redundant space over huge distances on a virtual image. The -U option
which works the memory subsystem rather hard making noticeable impact on the
rest of the machine also does further wonders for the compression and times.
rest of the machine also does further wonders for the compression (virtually
always) and even the times in this particular case.
This should help govern what compression you choose. Small files are nicely
compressed with zpaq. Intermediate files are nicely compressed with lzma.
@ -130,4 +131,4 @@ Or, to make things easier, just use the default settings all the time and be
happy as lzma gives good results. :D
Con Kolivas
Tue, 16th Nov 2010
Tue, 22 Feb 2011