Messages in this thread | | | From | Denys Vlasenko <> | Subject | Re: In response to kernel compression e-mail a few months ago. | Date | Tue, 16 Oct 2007 14:19:07 +0100 |
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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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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