On Mon, 2005-07-11 at 09:43 -0700, Paul E. McKenney wrote: > Hello, Daniel, > > In principle, one could inspect the Linux kernel with the PREEMPT_RT patch > applied, and calculate the worst-case time during which interrupts are > disabled, though I have not heard of anyone actually doing this. Is this > what you are getting at, or are you thinking in terms of Kristian's and > Karim's testing?
Well with the PREEMPT_RT patch applied the interrupt off sections are reduced to a small number, ~100 irrespective of config options or drivers (although I think APM might be the one exception) . So with the patch applied it becomes trivial to test/inspect each of the interrupt off sections , and thus give a hard guarantee for _all_ PREEMPT_RT kernels. Daniel - 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/
