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Gordon Henderson wrote: > On Thu, 16 Jul 2009, Paul Hirst wrote: > > >> On Wed, 2009-07-15 at 11:06 +0100, Rob Beard wrote: >> >> >>> As far as I know (after watching the demo video) they use an >>> uncompressed kernel with only drivers which the hardware requires and >>> use DMA access to transfer the stuff into memory, I gather too that the >>> hardware is pretty limited due to it being designed for in-car use. >>> >> I would have thought a gzip compressed kernel would make the most sense. >> They are bzip2 compressed by default aren't they? Which is pretty slow >> to decompress compared to gzip. >> >> Can you still do 'make zImage' rather than 'make bzImage'? I haven't >> compiled a kernel in a number of years now. The last one must have been >> the last Gentoo system I built. >> > > I'll give it a try soon, but the current kernels now support LZMA > compression which is supposed to be much faster to uncompress. > > Gordon > > Just wondering if this is a legacy feature or whether loading and decompressing is faster than just loading an already decompressed kernel? Obviously system dependent but intrigued to see any figures... Tom te tom te tom -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html