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try selinux=0, _if u feel that way :-) about big o: http://www.maththinking.com/boat/compsciBooksIndex.html daniel --- John Richard Moser <nigelenki@comcast.net> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > I've heard that SELinux has produced benchmarks such > as 7% increased CPU > load. Is this true and current? Is it dependent on > policy? What is > the policy lookup complexity ( O(1), O(n), > O(nlogn)...)? Are there > other places where a bottleneck may exist aside from > gruffing with the > policy? Isn't the policy actually in xattrs so it's > O(1)? Where else > would an overhead that big come from aside from a > lookup in a table? > > .... > > Why is the sky blue? Why do you have a mustach? > Why doesn't mommy have > one? Does she shave it? > > At any rate, my personal end goal is a secure > high-performance operating > system, as user friendly as Ubuntu, Mandriva, or > Win----. To this end, > I'm (still; a lot of you have seen me before) > evaluating the performance > hit of various user and kernel security enhancements > like PaX, > ProPolice, various OpenWall/GrSecurity niceness that > needs to be divided > out, and of course LSM/SELinux. Also wondering > about that PHKMalloc > thing on openbsd; is it really all that, is it junk, > how's it compare to > the recent ptmalloc work, and can it run on Linux > for direct benching . > . . but that's off topic. > > - -- > All content of all messages exchanged herein are > left in the > Public Domain, unless otherwise explicitly stated. > > Creative brains are a valuable, limited > resource. They shouldn't be > wasted on re-inventing the wheel when there are > so many fascinating > new problems waiting out there. > -- > Eric Steven Raymond > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.1 (GNU/Linux) > Comment: Using GnuPG with Thunderbird - > http://enigmail.mozdev.org > > iD8DBQFDQgT4hDd4aOud5P8RAoWBAJ0foEe4JcqDDlb7mMXQ6Z6FjCFjLACfdmJz > +j2lCH7DpTlZK6zUztldEGI= > =RzhA > -----END PGP SIGNATURE----- > - > 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/ > __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com - 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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