Is there a chance to have this patch on vanilla kernels one day ? I do not want to compile my host's kernel, but the "nice performance improvement" would be welcome.
Le vendredi 12 mars 2010 à 20:39 +1030, Simon Knight a écrit : > Apologies: I have since found the patches in the mail list archive, > and had success using > http://www.matrixstorm.com/software/linux/2.6.31-skas3.patch > against a vanilla kernel 2.6.31 > > It did give a nice performance improvement. > Thanks! > Simon > > On Fri, Mar 12, 2010 at 7:12 PM, Simon Knight <simon.kni...@gmail.com> wrote: > > Hello, > > I am using UML as part of Netkit, to do large scale network > > emulations. I am interested in the skas3 patch to improve performance. > > When booting a UML guest system, I get the following output: > > Checking for the skas3 patch in the host: > > - /proc/mm...not found: No such file or directory > > - PTRACE_FAULTINFO...not found > > - PTRACE_LDT...not found > > UML running in SKAS0 mode > > > > Suggesting that my Ubuntu 9.10 kernel 2.6.31-20-generic-pae doesn't > > have the skas patch. > > > > After much browsing, the most recent version of the skas patch I could > > find was at http://uml.linode.com/uml/blaisorblade/patches/skas3-2.6/ > > and is > > skas-2.6.20-v9-pre9/ 07-Feb-2007 15:11 > > > > I have been unable to apply this to my kernel, many of the folders and > > files are different to the patch (not suprising given its age). > > > > Is the performance boost of applying the skas patches still > > significant with recent kernels? I am doing large scale emulations, > > with many virtual machines running Quagga processes. > > If it is worth it, does someone have a link to installing the patches > > in a recent version of Ubuntu (or a recent vanilla kernel), or at > > least a link to the patches? > > The other alternative is to downgrade my kernel to 2.6.20; would this > > older kernel performance be offset by applying the skas patches? > > > > Thanks for your time, > > Simon > > > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > User-mode-linux-user mailing list > User-mode-linux-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
