Barney Cordoba wrote: > I have an app which reads stats from the kernel > periodically, and there can be a lot of iterations, > sometimes 20,000 or more. I'm thinking of converting > from an ioctl method to kvm_read(). KVM is certainly > simpler, but its not clear what overhead is involved, > since kvm_read() likely has to call the kernel also. > > Does anyone have a handle on the difference in > overhead, assuming that the ioctl call is to a module > which does nothing more than copy the data and return? tried a shared memory page? > > Thanks, > > barney > > > ____________________________________________________________________________________ > Be a better friend, newshound, and > know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ > _______________________________________________ > freebsd-current_at_freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org"Received on Fri Mar 21 2008 - 17:42:30 UTC
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