On Thu, 14 Nov 2013 09:13:44 -0500 Austin S Hemmelgarn <[email protected]> wrote:
> On 2013-11-14 03:32, Christian Ruppert wrote: > > 2. A patch to enable uncompressed x86 kernels. As stated above, I > > don't think this makes a lot of sense in itself but it might serve > > as an example for people working on other platforms with > > self-extracting kernels and the nozip not-decompression algorithm > > might be useful on those platforms as well. I only had a single > > x86-64 machine available to test this, however, so some more > > testing might be required. > > I disagree with the argument that an uncompressed x86 kernel doesn't > make sense, If you have a very fast boot device, then it is fully > conceivable that an uncompressed kernel could boot faster than a > compressed one. I have seen a very large number of systems where the > LZO compression boots at least twice as fast as gzip or bz2 (because > the disks are fast enough that a few megabytes of size difference > make much less of an impact than a slow decompressor). I concur, the uncompressed kernel certainly makes sense in some cases. If the kernel runs in an emulator, decompression could be slow. If the kernel runs in a virtual machine, the kernel would need to be decompressed separately for every virtual machine. Reading from the disk would be done only once if several virtual machines are started in a short period of time. -- Regards, Pavel Roskin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
