On Thu, 11 Aug 2016, Paul E. McKenney wrote: > > With modern Intel we could run it on one CPU per package I think, but at > > the same time, too much in NOHZ_FULL assumes the TSC is indeed sane so > > it doesn't make sense to me to keep the watchdog running, when it > > triggers it would also have to kill all NOHZ_FULL stuff, which would > > probably bring the entire machine down.. > > Well, you -could- force a very low priority CPU-bound task to run on > all nohz_full CPUs. Not necessarily a good idea, but a relatively > non-intrusive response to that particular error condition.
Given that we want the cpu only to run the user task I would think that is not a good idea. -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
