S Mathias:
[7z]
real 6m43.608s
user 10m1.092s
sys 0m3.957s
[xz]
real 10m40.788s
user 10m33.363s
sys 0m2.106s
Apparently, 7z uses multiple cores, while xz doesn't. Otherwise,
performance is mostly the same.
J.
--
I wish I could do more to put the sparkle back into my
On 22/01/11 18:44, S Mathias wrote:
http://pastebin.com/raw.php?i=MwDnhknf
$ ls -Sl
total 461252
-rw-rw-r--. 1 g g 111709730 Jan 22 11:06 linux-2.6.37.zip
-rw-rw-r--. 1 g g 93174605 Jan 22 11:03 linux-2.6.37.tar.gz
-rw-rw-r--. 1 g g 73552510 Jan 22 11:10 linux-2.6.37.tar.bz2
-rw-rw-r--. 1 g
On 2011-01-22 11:44 +0100, S Mathias wrote:
$ ls -Sl
total 461252
-rw-rw-r--. 1 g g 111709730 Jan 22 11:06 linux-2.6.37.zip
-rw-rw-r--. 1 g g 93174605 Jan 22 11:03 linux-2.6.37.tar.gz
-rw-rw-r--. 1 g g 73552510 Jan 22 11:10 linux-2.6.37.tar.bz2
-rw-rw-r--. 1 g g 66333786 Jan 22 11:16
wow...
http://pastebin.com/raw.php?i=ihLLHyiT
$ time 7z a -mx=9 linux-2.6.37.tar.7z linux-2.6.37.tar; echo; time xz -9 -z
linux-2.6.37.tar; echo; ls -lS
7-Zip 9.13 beta Copyright (c) 1999-2010 Igor Pavlov 2010-04-15
p7zip Version 9.13 (locale=en_US.utf8,Utf16=on,HugeFiles=on,2 CPUs)
On Sat, Jan 22, 2011 at 4:44 AM, S Mathias smathias1...@yahoo.com wrote:
...
I presume kernel.org knows this. Why doesn't people use e.g.: XZ?
...
FYI, archlinux is already using xz by default on their packaging
system, and for kernel lzma, which at least improves compression ratio
a bit.
--
On Sat, 22 Jan 2011 07:57:21 -0800, S Mathias wrote:
$ time 7z a -mx=9 linux-2.6.37.tar.7z linux-2.6.37.tar; echo; time xz -9
-z linux-2.6.37.tar; echo; ls -lS
was the linux-2.6.37.tar already in cache memory? If not, and you do xz
first, you will see more dramatic results.
--
Tong (remove
On Sat, Jan 22, 2011 at 4:44 AM, S Mathias smathias1...@yahoo.com wrote:
I presume kernel.org knows this. Why doesn't people use e.g.: XZ?
This is the same as in PDF's. DJVU files could be amazing too. They could
compress [convert] a 400 MByte PDF to a 20 MByte DJVU. Amazing.
Why don't
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