On Sunday 14 October 2007 21:58, Justin Piszcz wrote:
>
> On Sun, 14 Oct 2007, Al Viro wrote:
>
> > On Sun, Oct 14, 2007 at 09:46:15PM +0200, Jan Engelhardt wrote:
> >> (Obviously we shall pick .7z)
> >
> > The hell it is. Take a look at memory footprint of those suckers...
>
> For compression with -mx=9 it does use 500-900 MiB of RAM, that is true.
> For decompression, 50-70 MiB.
I'm with Al on this. 50 Mb for decompression?
Embedded and small device folks will not love this, I'm sure.
*Maybe* we can use lzma. Seems to use 8Mb on decompression:
PID VSZ*VSZRW RSS (SHR) DIRTY (SHR) STACK COMMAND
30474 10708 8604 8760 392 8360 0 8 lzmacat pld-th-x86_64.tar.lzma
(pld-th-x86_64.tar.lzma is a random 40Mb .lzma file I found on the net)
Sizes in Kb again:
32392 linux-2.6.16.17.tar.7z
33520 linux-2.6.16.17.tar.lzma
P.S. sorting files by extension in tarball generally helps, but in case
of Linux kernel, they are all C code anyway, so no measurable gain there.
--
vda
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